Severe Thunderstorms Tonight in the Mid-Atlantic; Tropical Storm Bertha in the Gulf

Scattered thunderstorms with severe gusts, hail and a tornado risk are possible near a cold front from the Ohio Valley to the Mid-Atlantic tonight. Tropical Storm Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the panhandle of Florida into Louisiana through Wednesday. Read More >

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15° N Lon: 79.27° W Elev: 1722 ft.

Overcast

57°F

14°C

Humidity 100%
Wind Speed NW 9 mph
Barometer 29.86 in (1011.2 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 22 Jul 7:56 am EDT
Detailed forecast for

Chautauqua County

Today
Mostly cloudy with a 40 percent chance of showers. Cool with highs ranging from the mid 60s inland to around 70 along the lake erie shore. Northwest winds 10 to 15 mph, becoming west.
Tonight
Partly cloudy in the evening, then becoming clear with some patchy fog developing overnight. Lows ranging from the upper 40s in interior valleys to the upper 50s along the lake erie shore. West winds 10 to 15 mph, becoming light.
Thursday
Some patchy fog in the morning, otherwise sunny. Cool with highs around 70. Light winds.
Thursday Night
Mainly clear. Lows ranging from around 50 in interior valleys to the upper 50s along the lake erie shore. Light winds.
Friday
Sunny. Highs in the upper 70s. Light winds.
Friday Night
Mainly clear. Lows in the upper 50s.
Saturday
Mostly sunny. Highs in the lower 80s.
Saturday Night
Partly cloudy. Lows in the lower 60s.
Sunday
Partly sunny with a 50 percent chance of showers and thunderstorms. Highs around 80.
Sunday Night
Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows in the lower 60s.
Monday
Partly sunny with a 50 percent chance of showers and thunderstorms. Highs in the upper 70s.
Monday Night
Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows around 60.
Tuesday
Partly sunny with a 50 percent chance of showers and thunderstorms. Highs in the mid 70s.



Basemap Options
Click map to change the forecast location
Loading map...
823 AM EDT Wed Jul 22 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database