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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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Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Overcast

72°F

22°C

Humidity 83%
Wind Speed W 8 mph
Barometer 29.92 in
Dewpoint 66°F (19°C)
Visibility 6.00 mi
Last update 30 Jul 3:55 am EDT
Extended Forecast for

3 Miles ESE Youngsville PA

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 5am, then a chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 71. Light southwest wind.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    Low: 71 °F

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am.  Mostly cloudy, then gradually becoming sunny, with a high near 82. West wind 5 to 13 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers then
    Sunny

    High: 82 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 59. West wind 3 to 7 mph.

    Mostly Clear

    Low: 59 °F

  • Friday

    Friday: Mostly sunny, with a high near 82. Light southwest wind becoming west 5 to 10 mph in the morning.

    Mostly Sunny

    High: 82 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 61. West wind 3 to 6 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    Low: 61 °F

  • Saturday

    Saturday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 78. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 78 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 57.

    Partly Cloudy

    Low: 57 °F

  • Sunday

    Sunday: Partly sunny, with a high near 79.

    Partly Sunny

    High: 79 °F

  • Sunday
    Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Chance
    T-storms

    Low: 59 °F

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 71. Light southwest wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 82. West wind 5 to 13 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly clear, with a low around 59. West wind 3 to 7 mph.
Friday
Mostly sunny, with a high near 82. Light southwest wind becoming west 5 to 10 mph in the morning.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. West wind 3 to 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 79.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 77.
  Click Map For Forecast
Point Forecast:
3 Miles ESE Youngsville PA
 41.85°N 79.24°W (Elev. 1198 ft)
2:51 am EDT Jul 30, 2015
4am 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