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Severe Weather of July 18th, 2026

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

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

Rain Fog/Mist

65°F

18°C

Humidity	100%
Wind Speed	S 12 mph
Barometer	29.78 in (1008.2 mb)
Dewpoint	65°F (18°C)
Visibility	6.00 mi
Last update	21 Jul 11:56 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Warren County

This Afternoon

Showers with a chance of thunderstorms. Highs in the upper 70s. Southwest winds around 10 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Tonight

Showers with thunderstorms likely in the evening, then a slight chance of showers after midnight. Lows in the mid 50s. Southwest winds 5 to 10 mph with gusts up to 25 mph, becoming west after midnight. Chance of rain near 100 percent.

Wednesday

Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Cooler with highs in the upper 60s. Northwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 30 percent.

Wednesday Night

Partly cloudy in the evening, then clearing. Patchy fog after midnight. Lows in the upper 40s. Northwest winds 5 to 10 mph.

Thursday

Patchy fog in the morning. Sunny. Highs in the mid 70s. Northwest winds around 5 mph.

Thursday Night

Clear. Lows around 50.

Friday

Sunny. Highs in the upper 70s.

Friday Night

Partly cloudy. Lows in the mid 50s.

Saturday

Mostly sunny. Very warm with highs in the lower 80s.

Saturday Night

Partly cloudy. Lows in the upper 50s.

Sunday

Partly sunny. Showers likely with a chance of thunderstorms in the afternoon. Very warm with highs in the lower 80s. Chance of rain 60 percent.

Sunday Night

Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 60s. Chance of rain 60 percent.

Monday

Partly sunny with a chance of showers. Highs in the upper 70s. Chance of rain 50 percent.