Extreme Heat Continues; Severe Thunderstorms into Upper Midwest; Strong Bering Sea Storm

Wildfires and poor air quality continue for the Pacific Northwest, Rockies and extended into the Plains. Severe thunderstorms possible for the northern Plains and upper Midwest on Monday along a frontal boundary. Another boundary will focus showers and thunderstorms for the eastern seaboard with localized heavy rainfall possible. For Alaska, a strong Bering Sea storm will bring winds and rainfall. Read More >

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Overcast

66°F

19°C

Humidity	NA
Wind Speed	S 3 mph
Barometer	29.74 in (1006.5 mb)
Dewpoint	N/A
Visibility	10.00 mi
Last update	2 Aug 9:56 pm EDT

More Information:

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

Extended Forecast for

Mayville NY

Flood Watch August 2, 10:16pm until August 3, 02:00am

Click here for hazard details and duration

Flood Watch

Flood Watch August 2, 10:16pm until August 3, 02:00am
NOW until 2:00am Mon
Flood Watch
Tonight
Low: 59 °F
Showers
Likely
Monday
High: 73 °F
Decreasing
Clouds
Monday Night
Low: 54 °F
Mostly Clear
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 60 °F
Mostly Clear
Wednesday
High: 81 °F
Slight Chance
Showers then
Chance
T-storms
Wednesday Night
Low: 64 °F
Chance
T-storms
Thursday
High: 81 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Tonight

Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 2am, then a slight chance of showers after 2am. Cloudy, with a low around 59. North wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Monday

Mostly cloudy, then gradually becoming sunny, with a high near 73. Northwest wind 9 to 13 mph.

Monday Night

Mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 79. Light and variable wind.

Tuesday Night

Mostly clear, with a low around 60. Calm wind becoming south around 5 mph after midnight.

Wednesday

A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Southwest wind around 6 mph. Chance of precipitation is 40%. 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. Mostly cloudy, with a low around 64. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 30%.

Thursday

A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 81. West wind around 7 mph. Chance of precipitation is 50%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.

Friday

Showers likely, mainly after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 60%.

Friday Night

Showers likely. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

Saturday

A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 40%.

Saturday Night

A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.

Sunday

A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 40%.