Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

A Few Clouds

61°F

16°C

Humidity	100%
Wind Speed	NE 5 mph
Barometer	30.03 in (1016.6 mb)
Dewpoint	61°F (16°C)
Visibility	10.00 mi
Last update	20 Aug 3:56 am EDT

More Information:

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

Extended Forecast for

3 Miles NNE Sinclairville NY

Overnight
Low: 57 °F
Patchy Fog
Thursday
High: 74 °F
Slight Chance
Showers and
Patchy Fog
then Partly
Sunny
Thursday Night
Low: 51 °F
Mostly Clear
Friday
High: 78 °F
Sunny
Friday Night
Low: 59 °F
Mostly Clear
Saturday
High: 77 °F
Mostly Sunny
then Showers
Likely
Saturday Night
Low: 57 °F
Showers
Sunday
High: 71 °F
Showers
Likely
Sunday Night
Low: 53 °F
Chance
Showers

Detailed Forecast

Overnight

Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 57. Northeast wind around 5 mph.

Thursday

A slight chance of showers between 9am and noon. Patchy fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 74. East wind around 6 mph. Chance of precipitation is 20%.

Thursday Night

Mostly clear, with a low around 51. Northeast wind around 5 mph becoming calm in the evening.

Friday

Sunny, with a high near 78. East wind 3 to 5 mph.

Friday Night

Mostly clear, with a low around 59. Light and variable wind becoming southeast around 6 mph after midnight.

Saturday

Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 77. South wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and possibly a thunderstorm. Low around 57. Southwest wind 5 to 7 mph. Chance of precipitation is 80%.

Sunday

Showers likely, mainly after 8am. Mostly cloudy, with a high near 71. West wind 9 to 15 mph. Chance of precipitation is 60%.

Sunday Night

A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.

Monday

A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 30%.

Monday Night

Partly cloudy, with a low around 53.

Tuesday

Mostly sunny, with a high near 73.