Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Mostly Cloudy

67°F

19°C

Humidity 97%
Wind Speed S 7 mph
Barometer 30.04 in (1016.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 10 Aug 4:56 am EDT
Extended Forecast for

Jamestown NY

  • Overnight

    Overnight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 62. South wind around 6 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms, mainly before 1pm.  High near 81. South wind 7 to 13 mph becoming west in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    T-storms then
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 63. West wind 3 to 8 mph.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers after 2pm.  Partly sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the afternoon.  Chance of precipitation is 20%.

    High: 80 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 2am.  Mostly cloudy, with a low around 58. Calm wind.  Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers.  Mostly cloudy, with a low around 60. Light southwest wind.  Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers.  Partly sunny, with a high near 78. Light west wind becoming northwest 5 to 9 mph in the morning.  Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms, mainly before 1pm. High near 81. South wind 7 to 13 mph becoming west in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. West wind 3 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers after 2pm. Partly sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 60. Light southwest wind. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 78. Light west wind becoming northwest 5 to 9 mph in the morning. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 51.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Jamestown NY
 42.09°N 79.24°W (Elev. 1430 ft)
3:57 am EDT Aug 10, 2026
5am EDT Aug 10, 2026-6pm EDT Aug 16, 2026
 
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Additional Resources

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