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Information on the severe weather that occurred on Saturday, July 18th, 2026

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

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

Fog

59°F

15°C

Humidity	100%
Wind Speed	Calm
Barometer	29.99 in (1015.2 mb)
Dewpoint	59°F (15°C)
Visibility	0.50 mi
Last update	18 Aug 4:56 am EDT

More Information:

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

Detailed forecast for

Warren County

Today

Areas of fog this morning. Mostly sunny. Highs in the upper 70s. Northwest winds around 5 mph.

Tonight

Partly cloudy. Lows in the upper 50s. West winds around 5 mph, becoming south after midnight.

Wednesday

Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Southwest winds 5 to 10 mph. Chance of rain 70 percent.

Wednesday Night

Mostly cloudy. A chance of showers in the evening. Patchy fog in the evening, then areas of fog after midnight. Lows in the mid 50s. West winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent.

Thursday

Patchy fog in the morning. Mostly sunny. Highs in the upper 70s. Northeast winds around 5 mph.

Thursday Night

Mostly clear. Patchy fog after midnight. Lows in the lower 50s.

Friday

Patchy fog in the morning. Sunny. Highs in the upper 70s.

Friday Night

Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.

Saturday

Mostly sunny. Showers likely in the afternoon. Highs in the upper 70s. Chance of rain 60 percent.

Saturday Night

Mostly cloudy. Showers likely, mainly in the evening. Lows in the upper 50s. Chance of rain 60 percent.

Sunday

Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 60 percent.

Sunday Night

Mostly cloudy with showers likely with a chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 50s. Chance of rain 60 percent.

Monday

Mostly sunny. A chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 30 percent.