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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Partly Cloudy

63°F

17°C

Humidity 84%
Wind Speed Vrbl 5 mph
Barometer 29.89 in (1012.4 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 20 Jun 4:56 pm EDT
Extended Forecast for

Leon NY

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 68. West wind around 10 mph. Chance of precipitation is 20%.

    High: 68 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 51. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday

    Sunday: A chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 70. Northwest wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 70 °F

    Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Showers likely after 2am. Mostly cloudy, with a low around 52. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Mostly Cloudy
    then Showers
    Likely

  • Monday

    Monday: Showers. High near 67. Southeast wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 67 °F

    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 52. North wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71. Northwest wind 6 to 8 mph.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 68. West wind around 10 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 51. Light and variable wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 70. Northwest wind 3 to 7 mph. Chance of precipitation is 30%.
Sunday Night
Showers likely after 2am. Mostly cloudy, with a low around 52. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers. High near 67. Southeast wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 52. North wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Mostly sunny, with a high near 71. Northwest wind 6 to 8 mph.
Tuesday Night
Mostly clear, with a low around 51. Calm wind.
Wednesday
Sunny, with a high near 74.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 54. Chance of precipitation is 30%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Leon NY
 42.29°N 79.03°W (Elev. 1506 ft)
Last Update:
3:57 pm EDT Jun 20, 2026
Forecast Valid:
5pm EDT Jun 20, 2026-6pm EDT Jun 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation