Severe Thunderstorms, Heavy Rainfall and Dangerous Heat

Severe thunderstorms are expected today and Friday from the upper Midwest, central Great Lakes into the Ohio and mid-Mississippi Valley's. In addition, heavy rainfall threat increases on Friday across the Ohio Valley. Meanwhile, early summer-like heat wave across portions of southern Texas with new daily records are forecast today and through the weekend; The heat spreads across the Gulf States. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Partly Cloudy

62°F

17°C

Humidity	100%
Wind Speed	S 7 mph
Barometer	29.79 in (1008.4 mb)
Dewpoint	62°F (17°C)
Visibility	10.00 mi
Last update	16 May 12:56 am EDT

More Information:

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

Extended Forecast for

3 Miles ESE Youngsville PA

Overnight
Low: 61 °F
Showers
Friday
High: 82 °F
Showers
Likely then
Sunny
Friday Night
Low: 60 °F
Chance
T-storms then
Showers
Saturday
High: 74 °F
Showers
Saturday Night
Low: 51 °F
Showers
Likely then
Chance
Showers
Sunday
High: 61 °F
Slight Chance
Showers
Sunday Night
Low: 44 °F
Mostly Cloudy
Monday
High: 64 °F
Mostly Sunny
Monday Night
Low: 39 °F
Mostly Clear

Detailed Forecast

Overnight

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 61. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Showers and thunderstorms likely, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 82. South wind 5 to 8 mph becoming west in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers and thunderstorms between 11pm and 2am, then showers and possibly a thunderstorm after 2am. Low around 60. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Showers and possibly a thunderstorm before 5pm, then showers likely. High near 74. Southwest wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Showers likely before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 51. West wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

A slight chance of showers before 2pm. Mostly cloudy, with a high near 61. Chance of precipitation is 20%.

Sunday Night

Mostly cloudy, with a low around 44.

Monday

Mostly sunny, with a high near 64.

Monday Night

Mostly clear, with a low around 39.

Tuesday

Partly sunny, with a high near 65.

Tuesday Night

A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 40%.