Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Heavy snow in the Rockies, Fire weather threat in the Southwest, and Heavy rainfall threat for the weekend in the Southern Plains into the Ohio Valley

Heavy snow is expected in the northern and central Rockies. There is a critical to elevated fire risk across the Southwest. A few severe storms are expected from the Southeast States into the Great Lakes and portions of the Central Plains on Thursday. Heavy rainfall is forecast through the weekend with a threat for significant flooding for the Southern Plains into the Mississippi Valley Read More >

Hazardous Weather Conditions

Current conditions at

Rochester, Greater Rochester International Airport (KROC)

Lat: 43.12°NLon: 77.68°WElev: 558ft.

Partly Cloudy

65°F

18°C

Humidity 76%
Wind Speed S 5 mph
Barometer 29.72 in (1006.4 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 27 Apr 7:54 am EDT
Extended Forecast for

Williamson NY

  • Today

    Today: Sunny, with a high near 81. Southeast wind 15 to 17 mph.

    Sunny

    High: 81 °F

  • Tonight

    Tonight: Showers and thunderstorms before midnight, then scattered showers. Some storms could be severe, with damaging winds, gusty winds, and heavy rain.  Low around 52. South wind 8 to 16 mph becoming west after midnight.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Severe
    Thunderstorms
    then
    Scattered
    Showers

    Low: 52 °F

  • Friday

    Friday: Mostly sunny, with a high near 60. West wind 7 to 10 mph becoming north in the afternoon.

    Mostly Sunny

    High: 60 °F

  • Friday
    Night

    Friday Night: A chance of showers after 2am.  Mostly cloudy, with a low around 53. Northeast wind 5 to 7 mph becoming calm.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Mostly Cloudy
    then Chance
    Showers

    Low: 53 °F

  • Saturday

    Saturday: A chance of showers.  Mostly cloudy, with a high near 64. Breezy, with a south wind 7 to 12 mph becoming northwest 17 to 22 mph in the afternoon.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Chance
    Showers and
    Breezy

    High: 64 °F

  • Saturday
    Night

    Saturday Night: A slight chance of showers.  Mostly cloudy, with a low around 42. Chance of precipitation is 20%.

    Slight Chance
    Showers

    Low: 42 °F

  • Sunday

    Sunday: A chance of showers.  Mostly cloudy, with a high near 58. Chance of precipitation is 50%.

    Chance
    Showers

    High: 58 °F

  • Sunday
    Night

    Sunday Night: A chance of showers.  Mostly cloudy, with a low around 54. Chance of precipitation is 40%.

    Chance
    Showers

    Low: 54 °F

  • Monday

    Monday: A chance of showers, then showers and thunderstorms likely after 2pm.  Mostly cloudy, with a high near 78. Chance of precipitation is 60%.

    Chance
    Showers then
    T-storms
    Likely

    High: 78 °F

Detailed Forecast

Today
Sunny, with a high near 81. Southeast wind 15 to 17 mph.
Tonight
Showers and thunderstorms before midnight, then scattered showers. Some storms could be severe, with damaging winds, gusty winds, and heavy rain. Low around 52. South wind 8 to 16 mph becoming west after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Mostly sunny, with a high near 60. West wind 7 to 10 mph becoming north in the afternoon.
Friday Night
A chance of showers after 2am. Mostly cloudy, with a low around 53. Northeast wind 5 to 7 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of showers. Mostly cloudy, with a high near 64. Breezy, with a south wind 7 to 12 mph becoming northwest 17 to 22 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 42. Chance of precipitation is 20%.
Sunday
A chance of showers. Mostly cloudy, with a high near 58. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Monday
A chance of showers, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely before midnight, then a chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 56. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 53. Breezy.
Click Map For Forecast
Point Forecast:
Williamson NY
 43.25°N 77.16°W (Elev. 381 ft)
4:36 am EDT Apr 27, 2017
8am EDT Apr 27, 2017-6pm EDT May 3, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database