Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. 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.

Fair

65°F

18°C

Humidity	100%
Wind Speed	S 5 mph
Barometer	30.08 in (1018.0 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Last update	10 Aug 12:56 am EDT

More Information:

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

Extended Forecast for

Mayville NY

Overnight
Low: 63 °F
Showers
Monday
High: 78 °F
Showers then
Chance
T-storms
Monday Night
Low: 61 °F
Chance
T-storms then
Chance
Showers
Tuesday
High: 77 °F
Slight Chance
Showers
Tuesday Night
Low: 59 °F
Chance
Showers
Wednesday
High: 78 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 59 °F
Showers
Likely
Thursday
High: 75 °F
Chance
Showers then
Mostly Sunny
Thursday Night
Low: 53 °F
Partly Cloudy

Detailed Forecast

Overnight

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 63. South wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday

Showers and thunderstorms, mainly before 2pm. High near 78. West wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. West wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A slight chance of showers. Partly sunny, with a high near 77. Calm wind becoming northwest around 6 mph in the morning. Chance of precipitation is 20%.

Tuesday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. South wind 5 to 7 mph becoming west in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 59. West wind around 5 mph. Chance of precipitation is 60%.

Thursday

A chance of showers before 8am. Mostly sunny, with a high near 75. Northwest wind 7 to 11 mph. Chance of precipitation is 30%.

Thursday Night

Partly cloudy, with a low around 53.

Friday

Sunny, with a high near 72.

Friday Night

Mostly clear, with a low around 52.

Saturday

Mostly sunny, with a high near 73.

Saturday Night

Partly cloudy, with a low around 54.