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.

Overcast

63°F

17°C

Humidity	100%
Wind Speed	Calm
Barometer	30.04 in (1016.8 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Last update	20 Aug 1:56 am EDT

More Information:

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

Extended Forecast for

Celoron NY

Overnight
Low: 58 °F
Patchy Fog
Thursday
High: 76 °F
Chance
Showers and
Areas Fog
Thursday Night
Low: 52 °F
Mostly Clear
then Areas
Fog
Friday
High: 81 °F
Areas Fog
then Sunny
Friday Night
Low: 59 °F
Mostly Clear
Saturday
High: 80 °F
Mostly Sunny
then Showers
Likely
Saturday Night
Low: 57 °F
Showers
Likely
Sunday
High: 74 °F
Showers
Likely
Sunday Night
Low: 52 °F
Chance
Showers

Detailed Forecast

Overnight

Patchy fog. Otherwise, mostly cloudy, with a low around 58. North wind around 5 mph.

Thursday

A chance of showers, mainly before noon. Areas of fog before 8am. Otherwise, cloudy, then gradual clearing during the afternoon, with a high near 76. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night

Areas of fog after 2am. Otherwise, mostly clear, with a low around 52. North wind around 5 mph becoming calm in the evening.

Friday

Areas of fog before 9am. Otherwise, sunny, with a high near 81. Calm wind becoming southeast around 5 mph.

Friday Night

Mostly clear, with a low around 59. Light and variable wind.

Saturday

Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. Southeast wind 5 to 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 likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Southwest wind around 5 mph. Chance of precipitation is 70%.

Sunday

Showers likely, mainly after 8am. Mostly cloudy, with a high near 74. West wind 7 to 13 mph. Chance of precipitation is 60%.

Sunday Night

A chance of showers before 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.

Monday

A chance of showers after 8am. Partly sunny, with a high near 72. Chance of precipitation is 30%.

Monday Night

Partly cloudy, with a low around 52.

Tuesday

Mostly sunny, with a high near 76.