Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Fair

73°F

23°C

Humidity 64%
Wind Speed W 7 mph
Barometer 29.98 in (1014.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 19 Aug 6:56 pm EDT
Extended Forecast for

3 Miles ENE Clymer NY

  • Tonight

    Tonight: Patchy fog between 4am and 5am.  Otherwise, increasing clouds, with a low around 58. West wind 5 to 8 mph becoming east after midnight.

    Low: 58 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: A chance of showers, mainly between 10am and 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 11pm.  Otherwise, clear, with a low around 52. Light and variable wind.

    Low: 52 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, sunny, with a high near 78. Calm wind becoming east around 5 mph in the afternoon.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56. Light and variable wind.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Showers and possibly a thunderstorm after 2pm.  High near 77. South wind 5 to 7 mph becoming southwest in the afternoon.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Mostly Sunny
    then Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers.  Low around 56. Southwest wind around 5 mph.  Chance of precipitation is 80%.

    Low: 56 °F

    Showers

  • Sunday

    Sunday: A chance of showers.  Partly sunny, with a high near 72. West wind 6 to 11 mph.  Chance of precipitation is 50%.

    High: 72 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 2am.  Partly cloudy, with a low around 51. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog between 4am and 5am. Otherwise, increasing clouds, with a low around 58. West wind 5 to 8 mph becoming east after midnight.
Thursday
A chance of showers, mainly between 10am and 11am. Mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Patchy fog after 11pm. Otherwise, clear, with a low around 52. Light and variable wind.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 78. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 56. Light and variable wind.
Saturday
Showers and possibly a thunderstorm after 2pm. High near 77. South wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 56. Southwest wind around 5 mph. Chance of precipitation is 80%.
Sunday
A chance of showers. Partly sunny, with a high near 72. West wind 6 to 11 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers before 2am. Partly cloudy, with a low around 51. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Clymer NY
 42.05°N 79.62°W (Elev. 1588 ft)
6:30 pm EDT Aug 19, 2026
7pm EDT Aug 19, 2026-6pm EDT Aug 26, 2026
 
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Additional Resources

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