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Risk of severe thunderstorms from Florida to the Great Lake States

Storms may contain strong, damaging winds and hail. Locally heavy rain is also possible in southern California and the Desert Southwest. Very hot conditions continue in the lower Mississippi Valley and the Deep South.
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Current conditions at

Penn Yan, Penn Yan Airport (KPEO)

Lat: 42.64°NLon: 77.05°WElev: 902ft.

A Few Clouds

75°F

24°C

Humidity 82%
Wind Speed SW 8 mph
Barometer 29.89 in (1011.2 mb)
Dewpoint 69°F (21°C)
Visibility 7.00 mi
Last update 30 Jul 1:53 am EDT
Extended Forecast for

Sampson NY

  • Overnight

    Overnight: A slight chance of showers and thunderstorms after 3am.  Mostly cloudy, with a low around 73. South wind around 7 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 73 °F

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 85. West wind 9 to 13 mph.  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 then
    Slight Chance
    T-storms

    High: 85 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 66. Southwest wind around 7 mph.

    Mostly Clear

    Low: 66 °F

  • Friday

    Friday: Sunny, with a high near 85. West wind 7 to 10 mph.

    Sunny

    High: 85 °F

  • Friday
    Night

    Friday Night: A slight chance of showers after 2am.  Partly cloudy, with a low around 61. Calm wind becoming southwest around 5 mph after midnight.  Chance of precipitation is 20%.

    Partly Cloudy
    then Slight
    Chance
    Showers

    Low: 61 °F

  • Saturday

    Saturday: A chance of showers and thunderstorms.  Partly sunny, with a high near 79. Chance of precipitation is 30%.

    Chance
    T-storms

    High: 79 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 63.

    Partly Cloudy

    Low: 63 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 81.

    Mostly Sunny

    High: 81 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 63.

    Partly Cloudy

    Low: 63 °F

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 73. South wind around 7 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 85. West wind 9 to 13 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly clear, with a low around 66. Southwest wind around 7 mph.
Friday
Sunny, with a high near 85. West wind 7 to 10 mph.
Friday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 61. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 63.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 40%.
  Click Map For Forecast
Point Forecast:
Sampson NY
 42.73°N 76.9°W (Elev. 525 ft)
9:23 pm EDT Jul 29, 2015
2am EDT Jul 30, 2015-6pm EDT Aug 5, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database