National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Mostly Cloudy

52°F

11°C

Humidity 100%
Wind Speed SE 5 mph
Barometer 29.73 in (1006.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 17 Jun 2:56 am EDT
Extended Forecast for

3 Miles SSW Cattaraugus NY

  • Overnight

    Overnight: A chance of showers, mainly before 4am. Mostly cloudy, with a low around 53. South wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Increasing clouds, with a high near 73. Southwest wind 7 to 9 mph.

    High: 73 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Showers, with thunderstorms also possible after 2am. Low around 57. Breezy, with a light south wind increasing to 17 to 22 mph in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers and
    Breezy

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am, then showers and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. High near 72. West wind 16 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 2am. Mostly cloudy, with a low around 53. West wind 7 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 69. West wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 69 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 50. West wind 5 to 8 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 68. West wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers, mainly before 4am. Mostly cloudy, with a low around 53. South wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Increasing clouds, with a high near 73. Southwest wind 7 to 9 mph.
Wednesday Night
Showers, with thunderstorms also possible after 2am. Low around 57. Breezy, with a light south wind increasing to 17 to 22 mph in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 8am, then showers and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. High near 72. West wind 16 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers before 2am. Mostly cloudy, with a low around 53. West wind 7 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Juneteenth
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 69. West wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 50. West wind 5 to 8 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 68. West wind 9 to 13 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.
Monday
Showers likely. Partly sunny, with a high near 72. Chance of precipitation is 60%.
Monday Night
A chance of showers. Partly cloudy, with a low around 53. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Cattaraugus NY
 42.3°N 78.88°W (Elev. 1490 ft)
Last Update:
2:22 am EDT Jun 17, 2026
Forecast Valid:
3am EDT Jun 17, 2026-6pm EDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation