Major cities in New York state

Counties in New York state

Weather for the next 15 days in New York, New York state, USA

Weather in New York for today, Saturday, 16 Feb 2019

Sunrise: 06:49
Sunset: 17:32
Moonrise: 14:07
Moonset: 04:20
UV Index: 3
02:0005:0008:0011:0014:0017:0020:0023:00
Partly cloudyPartly cloudyPartly cloudyCloudyCloudyPartly cloudyClearPartly cloudy
Temperature41°F36°F37°F37°F41°F37°F37°F32°F
Feels Like37°F32°F32°F34°F37°F34°F32°F25°F
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability0 %0 %0 %0 %0 %0 %0 %0 %
Cloud Cover43 %49 %16 %78 %78 %3 %0 %2 %
Wind Speed6 mph7 mph12 mph7 mph8 mph7 mph13 mph12 mph
Wind DirectionNWNWNWNWNNWNNWNNWNNW
Wind Gusts13 mph13 mph14 mph12 mph11 mph12 mph16 mph10 mph
Humidity57 %65 %78 %69 %43 %51 %57 %58 %
Pressure1009 mb1011 mb1001 mb1012 mb1011 mb1011 mb998 mb994 mb
Dew Point28°F27°F34°F30°F21°F23°F25°F19°F
Heat Index43°F37°F39°F39°F43°F39°F39°F34°F
Wind Chill37°F32°F32°F34°F37°F34°F32°F25°F
Visibility11 mi11 mi11 mi12 mi12 mi12 mi12 mi12 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
434341393736373737373737394141413937373737363432
0.30.10000000000000000000000
66667791112119777877791113121212

Weather in New York for tomorrow, Sunday, 17 Feb 2019

Sunrise: 06:48
Sunset: 17:33
Moonrise: 15:16
Moonset: 05:19
UV Index: 3
02:0005:0008:0011:0014:0017:0020:0023:00
Partly cloudyClearSunnySunnyPartly cloudyPartly cloudyCloudyHeavy snow
Temperature27°F25°F25°F36°F34°F34°F34°F34°F
Feels Like21°F19°F21°F28°F32°F32°F32°F32°F
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0.6 mm
Probability0 %0 %0 %0 %0 %0 %0 %74 %
Cloud Cover12 %0 %0 %0 %44 %53 %66 %100 %
Wind Speed6 mph7 mph5 mph12 mph2 mph6 mph4 mph5 mph
Wind DirectionNNNNENESSESESESW
Wind Gusts8 mph8 mph6 mph3 mph4 mph9 mph9 mph3 mph
Humidity63 %66 %66 %51 %52 %60 %65 %68 %
Pressure1014 mb1017 mb1020 mb1008 mb1017 mb1009 mb1018 mb1016 mb
Dew Point18°F18°F18°F21°F19°F23°F25°F25°F
Heat Index28°F27°F27°F37°F36°F36°F36°F36°F
Wind Chill21°F19°F21°F28°F32°F32°F32°F32°F
Visibility12 mi12 mi12 mi12 mi12 mi12 mi12 mi11 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
302827272525252525283236363634343434343434343434
0000000000000000000000.20.40.6
10866776657912962446544445

Weather in New York for Monday, 18 Feb 2019

Sunrise: 06:46
Sunset: 17:35
Moonrise: 16:30
Moonset: 06:11
UV Index: 1
02:0005:0008:0011:0014:0017:0020:0023:00
Heavy snowLight rainLight sleetLight sleetLight rainPatchy rain possiblePatchy light snowCloudy
Temperature32°F32°F30°F34°F37°F36°F34°F30°F
Feels Like28°F28°F25°F28°F34°F32°F28°F25°F
Precipitation1 mm2.2 mm1.9 mm0.4 mm1.1 mm0.1 mm0.1 mm0 mm
Probability80 %75 %65 %79 %72 %80 %83 %0 %
Cloud Cover100 %100 %100 %100 %100 %100 %76 %73 %
Wind Speed6 mph6 mph6 mph9 mph7 mph7 mph8 mph7 mph
Wind DirectionESEEENENWNWNWNW
Wind Gusts13 mph14 mph11 mph3 mph5 mph19 mph21 mph20 mph
Humidity78 %72 %69 %65 %65 %59 %64 %67 %
Pressure1014 mb1013 mb1017 mb1018 mb1017 mb1020 mb1021 mb1024 mb
Dew Point27°F25°F23°F25°F28°F25°F25°F23°F
Heat Index34°F34°F32°F36°F39°F37°F36°F32°F
Wind Chill28°F28°F25°F28°F34°F32°F28°F25°F
Visibility7 mi6 mi6 mi6 mi7 mi9 mi11 mi12 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
343432323232323030323434363737373736363634343230
0.70.911.41.82.22.121.91.40.90.40.60.91.10.80.40.10.10.10.10.100
566666666779877777778777

Weather in New York for Tuesday, 19 Feb 2019

Sunrise: 06:45
Sunset: 17:36
Moonrise: 17:47
Moonset: 06:56
UV Index: 3
02:0005:0008:0011:0014:0017:0020:0023:00
Partly cloudyPartly cloudyPartly cloudyPartly cloudyOvercastPartly cloudyPartly cloudyPartly cloudy
Temperature27°F23°F27°F30°F36°F34°F30°F28°F
Feels Like21°F18°F21°F27°F32°F30°F27°F25°F
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability0 %0 %0 %0 %0 %0 %0 %0 %
Cloud Cover3 %3 %2 %32 %92 %12 %14 %20 %
Wind Speed7 mph8 mph5 mph6 mph6 mph6 mph3 mph7 mph
Wind DirectionNNWNWNWNNWNWWNWNNWNNW
Wind Gusts11 mph9 mph11 mph8 mph9 mph8 mph6 mph9 mph
Humidity71 %55 %61 %53 %46 %34 %59 %59 %
Pressure1026 mb1029 mb1030 mb1026 mb1025 mb1029 mb1028 mb1029 mb
Dew Point19°F10°F16°F16°F18°F10°F19°F18°F
Heat Index28°F25°F28°F32°F37°F36°F32°F30°F
Wind Chill21°F18°F21°F27°F32°F30°F27°F25°F
Visibility12 mi12 mi12 mi12 mi12 mi12 mi12 mi12 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
282827252523252527282830323436363634343230302828
000000000000000000000000
777888765666666666443467

Weather in New York for Wednesday, 20 Feb 2019

Sunrise: 06:43
Sunset: 17:37
Moonrise: 19:03
Moonset: 07:36
UV Index: 0
02:0005:0008:0011:0014:0017:0020:0023:00
CloudyPartly cloudyModerate snowCloudyHeavy snowHeavy snowPatchy heavy snowHeavy snow
Temperature30°F27°F30°F34°F34°F34°F34°F32°F
Feels Like25°F21°F25°F28°F28°F30°F30°F27°F
Precipitation0 mm0 mm0.1 mm0 mm1 mm0.9 mm0.5 mm0.9 mm
Probability0 %0 %71 %0 %69 %69 %61 %74 %
Cloud Cover78 %6 %77 %82 %100 %100 %53 %100 %
Wind Speed7 mph5 mph6 mph9 mph8 mph9 mph4 mph7 mph
Wind DirectionSSWNENEENEEENE
Wind Gusts6 mph7 mph9 mph10 mph12 mph9 mph6 mph19 mph
Humidity69 %55 %70 %61 %66 %68 %85 %77 %
Pressure1015 mb1029 mb1028 mb1024 mb1025 mb1013 mb1020 mb1022 mb
Dew Point23°F14°F23°F23°F27°F27°F30°F27°F
Heat Index32°F28°F32°F36°F36°F36°F34°F34°F
Wind Chill25°F21°F25°F28°F28°F30°F30°F27°F
Visibility12 mi12 mi12 mi12 mi11 mi9 mi9 mi7 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
283030282827282830323434343434343434343434343432
00000000.10.10.5100.30.7110.90.90.80.60.50.60.80.9
777665566789988889764567

Weather in New York for Thursday, 21 Feb 2019

Sunrise: 06:42
Sunset: 17:38
Moonrise: 20:16
Moonset: 08:11
UV Index: 1
02:0005:0008:0011:0014:0017:0020:0023:00
OvercastLight freezing rainLight drizzleOvercastModerate rainPartly cloudyLight rainOvercast
Temperature30°F32°F34°F34°F39°F39°F34°F32°F
Feels Like23°F27°F28°F28°F37°F36°F28°F28°F
Precipitation0 mm0.1 mm0.7 mm0 mm2.5 mm0 mm0.9 mm0 mm
Probability0 %76 %73 %0 %85 %0 %79 %0 %
Cloud Cover100 %100 %100 %100 %100 %57 %100 %97 %
Wind Speed9 mph7 mph9 mph7 mph7 mph7 mph7 mph6 mph
Wind DirectionEEENEENNENWNENNW
Wind Gusts14 mph23 mph14 mph3 mph9 mph10 mph9 mph9 mph
Humidity91 %80 %86 %71 %55 %59 %61 %64 %
Pressure1023 mb1015 mb1017 mb1017 mb1022 mb1017 mb1019 mb1021 mb
Dew Point28°F28°F32°F27°F27°F28°F25°F23°F
Heat Index30°F34°F36°F36°F41°F41°F36°F34°F
Wind Chill23°F27°F28°F28°F37°F36°F28°F28°F
Visibility7 mi7 mi4 mi4 mi5 mi7 mi9 mi12 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
323230323232343434343434363739393939373634343432
0.60.3000.10.10.30.50.711.300.81.72.51.70.800.30.60.90.60.30
899987799977777777777666

Weather in New York for Friday, 22 Feb 2019

Sunrise: 06:41
Sunset: 17:39
Moonrise: 21:29
Moonset: 08:44
UV Index: 1
02:0005:0008:0011:0014:0017:0020:0023:00
CloudyCloudyOvercastCloudyPartly cloudyCloudyModerate or heavy sleetLight freezing rain
Temperature32°F28°F28°F37°F37°F39°F34°F30°F
Feels Like28°F25°F25°F32°F34°F37°F30°F27°F
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm3.4 mm0.1 mm
Probability0 %0 %0 %0 %0 %0 %61 %66 %
Cloud Cover85 %69 %93 %83 %61 %67 %100 %100 %
Wind Speed5 mph5 mph4 mph8 mph6 mph4 mph5 mph5 mph
Wind DirectionNSENNENESENNEENEE
Wind Gusts6 mph3 mph7 mph11 mph2 mph5 mph8 mph7 mph
Humidity75 %76 %72 %64 %54 %62 %66 %70 %
Pressure1020 mb1027 mb1027 mb1025 mb1025 mb1027 mb1025 mb1027 mb
Dew Point27°F23°F21°F27°F25°F28°F27°F23°F
Heat Index34°F30°F30°F37°F39°F41°F36°F32°F
Wind Chill28°F25°F25°F32°F34°F37°F30°F27°F
Visibility12 mi12 mi12 mi12 mi11 mi7 mi7 mi6 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
323232303028282828323637373737393939373634343230
0000000000000000001.12.33.42.31.20.1
655555544668766544445555

Weather in New York for Saturday, 23 Feb 2019

Sunrise: 06:39
Sunset: 17:40
Moonrise: 22:37
Moonset: 09:16
UV Index: 1
02:0005:0008:0011:0014:0017:0020:0023:00
Heavy rainCloudyLight rainLight drizzlePatchy rain possiblePartly cloudyPartly cloudyFog
Temperature34°F32°F32°F37°F45°F41°F37°F37°F
Feels Like32°F34°F28°F34°F43°F37°F34°F34°F
Precipitation7.6 mm0 mm2.2 mm0.3 mm2.3 mm0 mm0 mm0.1 mm
Probability75 %0 %87 %61 %74 %0 %0 %66 %
Cloud Cover100 %66 %100 %100 %78 %8 %60 %100 %
Wind Speed6 mph4 mph4 mph6 mph7 mph8 mph8 mph8 mph
Wind DirectionSSSENNENWSSESSEESE
Wind Gusts12 mph6 mph11 mph10 mph32 mph9 mph11 mph6 mph
Humidity81 %84 %79 %73 %56 %71 %73 %76 %
Pressure1025 mb1026 mb1024 mb1022 mb1021 mb1016 mb1020 mb1020 mb
Dew Point30°F34°F28°F32°F30°F34°F32°F32°F
Heat Index36°F37°F34°F39°F46°F43°F39°F39°F
Wind Chill32°F34°F28°F34°F43°F37°F34°F34°F
Visibility3 mi6 mi6 mi1 mi6 mi6 mi6 mi0 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
323434343232323232343637414345454341413937373737
2.65.17.65.12.500.71.52.21.60.90.311.62.31.50.8000000.10.1
666654444456667788888888

Weather in New York for Sunday, 24 Feb 2019

Sunrise: 06:38
Sunset: 17:42
Moonrise: 23:45
Moonset: 09:49
UV Index: 1
02:0005:0008:0011:0014:0017:0020:0023:00
FogLight drizzlePartly cloudySunnyPartly cloudySunnyClearPartly cloudy
Temperature37°F36°F39°F41°F45°F45°F41°F39°F
Feels Like34°F32°F36°F36°F43°F43°F37°F36°F
Precipitation0 mm0.6 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability0 %83 %0 %0 %0 %0 %0 %0 %
Cloud Cover100 %100 %7 %0 %59 %49 %0 %15 %
Wind Speed6 mph7 mph6 mph12 mph7 mph7 mph10 mph9 mph
Wind DirectionESEEWNWNWNWNWNWWNW
Wind Gusts5 mph15 mph10 mph15 mph21 mph22 mph29 mph16 mph
Humidity80 %77 %89 %66 %73 %73 %72 %78 %
Pressure1017 mb1012 mb1024 mb1015 mb1013 mb1012 mb1009 mb1011 mb
Dew Point34°F32°F36°F32°F37°F37°F34°F36°F
Heat Index39°F37°F39°F43°F46°F46°F43°F41°F
Wind Chill34°F32°F36°F36°F43°F43°F37°F36°F
Visibility0 mi1 mi6 mi6 mi6 mi6 mi6 mi6 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
373737373736373739394141434545454545454541414139
0.1000.20.40.60.40.20000000000000000
7766776668111211977777810999

Weather in New York for Monday, 25 Feb 2019

Sunrise: 06:36
Sunset: 17:43
Moonrise: 19:00
Moonset: 10:23
UV Index: 2
02:0005:0008:0011:0014:0017:0020:0023:00
Partly cloudyPartly cloudyPartly cloudyPatchy rain possiblePatchy rain possiblePatchy rain possiblePatchy rain possiblePartly cloudy
Temperature37°F36°F36°F37°F43°F43°F43°F43°F
Feels Like34°F32°F30°F32°F39°F39°F41°F39°F
Precipitation0 mm0 mm0 mm0 mm0.1 mm0.1 mm0.1 mm0.1 mm
Probability0 %0 %0 %14 %86 %82 %61 %51 %
Cloud Cover18 %10 %12 %22 %72 %72 %71 %65 %
Wind Speed6 mph7 mph8 mph8 mph10 mph9 mph4 mph4 mph
Wind DirectionNWWNNWESENWWNW
Wind Gusts10 mph13 mph7 mph7 mph6 mph6 mph6 mph7 mph
Humidity80 %80 %76 %72 %51 %53 %64 %64 %
Pressure1012 mb1014 mb1016 mb1017 mb1020 mb1021 mb1028 mb1028 mb
Dew Point34°F32°F30°F30°F27°F27°F32°F30°F
Heat Index39°F37°F37°F39°F45°F45°F43°F43°F
Wind Chill34°F32°F30°F32°F39°F39°F41°F39°F
Visibility6 mi6 mi6 mi6 mi6 mi6 mi6 mi6 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
393937373736363636373737373943434343434343434343
000000000000000.10.10.10.10.10.10.10.10.10.1
8766777788888910999984444

Weather in New York for Tuesday, 26 Feb 2019

Sunrise: 06:35
Sunset: 17:44
Moonrise: 00:48
Moonset: 11:00
UV Index: 1
02:0005:0008:0011:0014:0017:0020:0023:00
Partly cloudyClearSunnyPartly cloudyPartly cloudySunnyClearPartly cloudy
Temperature36°F36°F32°F36°F46°F45°F34°F36°F
Feels Like30°F28°F21°F25°F45°F41°F23°F25°F
Precipitation0 mm0 mm0 mm0 mm0 mm0 mm0 mm0 mm
Probability0 %0 %0 %0 %0 %0 %0 %0 %
Cloud Cover32 %27 %0 %2 %11 %9 %0 %1 %
Wind Speed7 mph9 mph17 mph15 mph2 mph5 mph18 mph16 mph
Wind DirectionWNWWNWWNWWSESSENWWNW
Wind Gusts12 mph15 mph30 mph25 mph3 mph7 mph29 mph26 mph
Humidity67 %65 %55 %53 %40 %40 %40 %45 %
Pressure1029 mb1028 mb1024 mb1025 mb1033 mb1032 mb1027 mb1028 mb
Dew Point27°F25°F18°F19°F23°F21°F12°F16°F
Heat Index36°F36°F32°F36°F46°F45°F34°F36°F
Wind Chill30°F28°F21°F25°F45°F41°F23°F25°F
Visibility6 mi6 mi6 mi6 mi6 mi6 mi6 mi6 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
434136363636363432363636363746454545454334363636
0.10.10000000000000000000000
45799991117151515151225555718161616

Weather in New York for Wednesday, 27 Feb 2019

Sunrise: 06:33
Sunset: 17:45
Moonrise: 01:49
Moonset: 11:41
UV Index: 2
02:0005:0008:0011:0014:0017:0020:0023:00
Partly cloudyPartly cloudyPartly cloudyHeavy rainHeavy rainPartly cloudyPartly cloudyHeavy rain
Temperature32°F32°F28°F32°F48°F46°F43°F45°F
Feels Like37°F34°F19°F23°F43°F43°F43°F43°F
Precipitation0 mm0 mm0 mm1.4 mm8.4 mm7 mm0 mm3.1 mm
Probability0 %0 %0 %14 %85 %71 %0 %12 %
Cloud Cover6 %7 %16 %30 %100 %85 %9 %23 %
Wind Speed5 mph6 mph9 mph10 mph12 mph11 mph2 mph4 mph
Wind DirectionESESSENNWWNWSSESNWWNW
Wind Gusts8 mph9 mph14 mph16 mph22 mph19 mph4 mph8 mph
Humidity77 %72 %45 %53 %93 %84 %38 %47 %
Pressure1023 mb1024 mb1031 mb1029 mb1020 mb1021 mb1028 mb1024 mb
Dew Point34°F30°F9°F16°F46°F41°F19°F25°F
Heat Index41°F39°F28°F32°F48°F46°F43°F45°F
Wind Chill37°F34°F19°F23°F43°F43°F43°F43°F
Visibility6 mi6 mi6 mi6 mi3 mi4 mi6 mi6 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
363632323232323028323232323648464646464643454545
0000000001.41.41.41.42.88.477775.603.13.13.1
161556666691010101011121111111192444

Weather in New York for Thursday, 28 Feb 2019

Sunrise: 06:32
Sunset: 17:46
Moonrise: 02:46
Moonset: 12:26
UV Index: 3
02:0005:0008:0011:0014:0017:0020:0023:00
Heavy rainPartly cloudyPartly cloudyPatchy rain possiblePatchy rain possiblePatchy rain possiblePatchy rain possiblePatchy rain possible
Temperature54°F52°F36°F37°F50°F50°F46°F46°F
Feels Like50°F46°F32°F34°F48°F48°F46°F45°F
Precipitation18.5 mm15.4 mm0 mm0 mm0.2 mm0.2 mm0.1 mm0.1 mm
Probability72 %60 %0 %13 %75 %75 %72 %72 %
Cloud Cover96 %88 %47 %53 %85 %84 %81 %81 %
Wind Speed15 mph13 mph4 mph5 mph9 mph7 mph2 mph4 mph
Wind DirectionSWSWSWWSWNWWNWSWSSW
Wind Gusts30 mph26 mph7 mph8 mph10 mph9 mph4 mph6 mph
Humidity92 %86 %52 %50 %41 %45 %69 %67 %
Pressure1006 mb1009 mb1025 mb1023 mb1016 mb1017 mb1022 mb1021 mb
Dew Point52°F46°F19°F21°F28°F28°F37°F36°F
Heat Index54°F52°F36°F37°F50°F50°F46°F46°F
Wind Chill50°F46°F32°F34°F48°F48°F46°F45°F
Visibility3 mi4 mi6 mi6 mi6 mi6 mi6 mi6 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
454654525252524836373737374150505050505046464646
3.16.218.515.415.415.415.412.3000000.10.20.20.20.20.20.20.10.10.10.1
471513131313114555569777762444

Weather in New York for Friday, 01 Mar 2019

Sunrise: 06:30
Sunset: 17:47
Moonrise: 03:37
Moonset: 13:15
UV Index: 2
02:0005:0008:0011:0014:0017:0020:0023:00
Patchy rain possiblePartly cloudyPartly cloudyHeavy rainHeavy rainPartly cloudyPartly cloudyHeavy rain at times
Temperature43°F43°F41°F41°F41°F43°F55°F52°F
Feels Like37°F39°F41°F39°F34°F37°F52°F48°F
Precipitation0.1 mm0.1 mm0 mm2.1 mm12.5 mm10.4 mm0 mm1.6 mm
Probability69 %58 %0 %12 %74 %62 %0 %13 %
Cloud Cover82 %70 %12 %24 %83 %70 %8 %17 %
Wind Speed11 mph9 mph0 mph2 mph11 mph11 mph10 mph11 mph
Wind DirectionESEESEEENENNESSWSSE
Wind Gusts18 mph15 mph1 mph3 mph16 mph16 mph19 mph19 mph
Humidity58 %64 %92 %90 %79 %77 %70 %70 %
Pressure1015 mb1017 mb1023 mb1020 mb1006 mb1008 mb1020 mb1018 mb
Dew Point30°F32°F39°F39°F34°F36°F46°F43°F
Heat Index43°F43°F41°F41°F41°F43°F55°F52°F
Wind Chill37°F39°F41°F39°F34°F37°F52°F48°F
Visibility6 mi6 mi6 mi6 mi3 mi4 mi6 mi6 mi
Hourly weather conditions, Temperature (°F), Precipitation (mm/h), Wind Speed (mph):
000102030405060708091011121314151617181920212223
464643434343434341414141414141434343434555525252
0.10.10.10.10.10.10.10.102.12.12.12.14.212.510.410.410.410.48.301.61.61.6
45119999702222411111111111010111111

Weather forecast interval

States in U.S.

Counties in New York state

Major cities in New York state

Short Term Forecast

Long Term Forecast