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

Increasing Risk for Flash and River Flooding Through the Weekend

A storm system will track across the central U.S. and set the stage for severe thunderstorms and widespread heavy rainfall through the weekend. There will be a threat for flash and river flooding for portions of the Southern Plains into the Upper Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Penn Yan, Penn Yan Airport (KPEO)

Lat: 42.64°NLon: 77.05°WElev: 902ft.

Mostly Cloudy

67°F

19°C

Humidity 66%
Wind Speed N 7 mph
Barometer 29.76 in (1007.1 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 27 Apr 11:53 pm EDT
Extended Forecast for

Hornell NY

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 1am, then isolated showers between 1am and 2am. Some of the storms could produce small hail and gusty winds.  Mostly cloudy, with a low around 49. South wind 6 to 8 mph becoming west after midnight.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    Low: 49 °F

  • Friday

    Friday: Mostly sunny, with a high near 71. Southwest wind 7 to 9 mph.

    Mostly Sunny

    High: 71 °F

  • Friday
    Night

    Friday Night: A chance of showers, mainly after 2am.  Mostly cloudy, with a low around 55. South wind 3 to 6 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Mostly Cloudy
    then Chance
    Showers

    Low: 55 °F

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 11am.  Mostly cloudy, with a high near 66. Southwest wind 5 to 9 mph becoming northwest in the afternoon.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 66 °F

  • Saturday
    Night

    Saturday Night: A chance of showers.  Mostly cloudy, with a low around 46. North wind around 6 mph becoming light and variable  in the evening.  Chance of precipitation is 40%.

    Chance
    Showers

    Low: 46 °F

  • Sunday

    Sunday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 68. Chance of precipitation is 50%.

    Chance
    T-storms

    High: 68 °F

  • Sunday
    Night

    Sunday Night: A chance of showers.  Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

    Chance
    Showers

    Low: 61 °F

  • Monday

    Monday: Showers and thunderstorms likely.  Mostly cloudy, with a high near 74. Chance of precipitation is 60%.

    T-storms
    Likely

    High: 74 °F

  • Monday
    Night

    Monday Night: Showers likely.  Mostly cloudy, with a low around 51. Chance of precipitation is 60%.

    Showers
    Likely

    Low: 51 °F

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before 1am, then isolated showers between 1am and 2am. Some of the storms could produce small hail and gusty winds. Mostly cloudy, with a low around 49. South wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 71. Southwest wind 7 to 9 mph.
Friday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 55. South wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 66. Southwest wind 5 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 46. North wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Monday
Showers and thunderstorms likely. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Monday Night
Showers likely. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 56. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 54. Chance of precipitation is 50%.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
A chance of showers. Mostly cloudy, with a high near 56. Chance of precipitation is 40%.
Click Map For Forecast
Point Forecast:
Hornell NY
 42.32°N 77.66°W (Elev. 1198 ft)
8:20 pm EDT Apr 27, 2017
11pm EDT Apr 27, 2017-6pm EDT May 4, 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