Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Overcast

65°F

18°C

Humidity	100%
Wind Speed	NE 9 mph
Barometer	30.10 in (1019.1 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Last update	17 Aug 9:56 pm EDT

More Information:

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

Extended Forecast for

Mayville NY

Tonight
Low: 54 °F
Decreasing
Clouds
Monday
High: 76 °F
Sunny
Monday Night
Low: 57 °F
Mostly Clear
Tuesday
High: 80 °F
Mostly Sunny
Tuesday Night
Low: 62 °F
Chance
Showers
Wednesday
High: 79 °F
Chance
Showers
Wednesday Night
Low: 61 °F
Mostly Cloudy
Thursday
High: 76 °F
Mostly Sunny
Thursday Night
Low: 57 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly cloudy, then gradually becoming mostly clear, with a low around 54. East wind around 9 mph, with gusts as high as 20 mph.

Monday

Sunny, with a high near 76. Northeast wind around 10 mph.

Monday Night

Mostly clear, with a low around 57. Northeast wind around 7 mph becoming southeast after midnight.

Tuesday

Mostly sunny, with a high near 80. South wind around 6 mph.

Tuesday Night

A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 62. South wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. South wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Mostly cloudy, with a low around 61. Northeast wind around 6 mph.

Thursday

Mostly sunny, with a high near 76. Northeast wind 7 to 10 mph.

Thursday Night

Mostly clear, with a low around 57.

Friday

Sunny, with a high near 81.

Friday Night

Mostly clear, with a low around 61.

Saturday

Mostly sunny, with a high near 82.