Widespread Excessive Heat and Humidity in Midwest to Spread to East Coast

High pressure building across the Central and Eastern U.S. will produce a dangerous combination of heat and humidity. Heat indices from unusually high dewpoints and well above normal temperatures may reach 110 to 115 degrees. In addition, near record warm low temperatures will limit recovery from hot daytime temperatures. Read More >

Hazardous Weather Conditions

Heat Advisory in effect from July 19, 12:00 PM EDT until July 20, 08:00 PM EDT

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

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

Mostly Cloudy

79°F

26°C

Humidity	67%
Wind Speed	NW 8 mph
Barometer	29.97 in (1014.2 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	18 Jul 4:56 pm EDT

More Information:

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

Detailed forecast for

Warren County

Tonight

Mostly clear this evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the upper 60s. South winds around 5 mph.

Friday

Partly sunny. Patchy fog in the morning. A slight chance of showers in the morning, then a chance of showers in the afternoon. Hot with highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 40 percent.

Friday Night

Mostly cloudy with a chance of showers and thunderstorms. Warm with lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of rain 50 percent.

Saturday

Partly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Hot with highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 40 percent. Heat index values between 100 and 104.

Saturday Night

Partly cloudy with a chance of showers and thunderstorms. Warm with lows in the lower 70s. West winds 5 to 10 mph. Chance of rain 40 percent. Heat index values around 100 early in the evening.

Sunday

Partly sunny with a chance of showers and thunderstorms in the morning, then mostly cloudy with showers and thunderstorms likely in the afternoon. Hot with highs in the mid 80s. Chance of rain 60 percent.

Sunday Night

Mostly cloudy. Showers and thunderstorms likely, mainly in the evening. Humid with lows in the lower 60s. Chance of rain 60 percent.

Monday

Partly sunny. Scattered showers and thunderstorms in the morning. Highs in the upper 70s. Chance of rain 50 percent.

Monday Night

Partly cloudy. Lows in the upper 50s.

Tuesday

Mostly sunny. Highs in the mid 70s.

Tuesday Night

Mostly clear. Lows in the mid 50s.

Wednesday

Sunny. Highs in the upper 70s.