Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Overcast

63°F

17°C

Humidity 84%
Wind Speed S 5 mph
Barometer 30.16 in (1021.2 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 30 Aug 7:56 am EDT
Extended Forecast for

3 Miles ESE Conewango Valley NY

  • Today

    Today: A slight chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm.  Cloudy, with a high near 75. South wind 5 to 8 mph becoming west in the afternoon.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Cloudy then
    Chance
    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm.  Patchy fog after 2am. Low around 62. Calm wind.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: Showers likely, with thunderstorms also possible after 2pm.  Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 80. Light and variable wind becoming southwest 5 to 8 mph in the morning.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers
    Likely and
    Patchy Fog

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 66. South wind 3 to 7 mph.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 83. West wind 7 to 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am.  Mostly cloudy, with a low around 65. Light and variable wind.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Partly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms.  Partly sunny, with a high near 84. West wind 5 to 10 mph.  Chance of precipitation is 50%.

    High: 84 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm after 2am.  Mostly cloudy, with a low around 64. South wind around 5 mph.  Chance of precipitation is 70%.

    Low: 64 °F

    T-storms
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 79. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

Detailed Forecast

Today
A slight chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, with a high near 75. South wind 5 to 8 mph becoming west in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm. Patchy fog after 2am. Low around 62. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 80. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 3 to 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. West wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 65. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. West wind 5 to 10 mph. Chance of precipitation is 50%.
Wednesday Night
Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 64. South wind around 5 mph. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Conewango Valley NY
 42.24°N 78.97°W (Elev. 1683 ft)
7:57 am EDT Aug 30, 2026
8am EDT Aug 30, 2026-6pm EDT Sep 5, 2026
 
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Additional Resources

Radar & Satellite Image

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