An Active Weather Wednesday

Strong to severe thunderstorms are possible on Wednesday in parts of the Ohio Valley, Upper Mississippi Valley and south-central Plains. These storms may produce heavy rain and flooding in the Ohio Valley. Meanwhile, a strong cold front will sweep through the Northwest U.S. with rain, mountain snow and high winds. Finally, heat and record high temperatures are likely across the Southern U.S. Read More >

Hazardous Weather Conditions

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Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Fair

47°F

8°C

Humidity	77%
Wind Speed	W 7 mph
Barometer	30.03 in (1018.0 mb)
Dewpoint	40°F (4°C)
Visibility	10.00 mi
Wind Chill	44°F (7°C)
Last update	17 May 9:56 pm EDT

More Information:

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

Extended Forecast for

Sherman NYSimilar City Names

Frost Advisory May 18, 02:00am until May 18, 08:00am

Click here for hazard details and duration

Frost Advisory

Tonight

Mostly Clear
then Patchy
Frost
Low: 36 °F
Wednesday

Patchy Frost
then Chance
Showers
High: 62 °F
Wednesday
Night

Showers
Low: 51 °F
Thursday

Chance
Showers
High: 68 °F
Thursday
Night

Partly Cloudy
Low: 54 °F
Friday

Slight Chance
T-storms then
Chance
Showers
High: 84 °F
Friday
Night

Chance
Showers
Low: 64 °F
Saturday

Partly Sunny
then T-storms
Likely
High: 82 °F
Saturday
Night

T-storms
Likely then
Showers
Likely
Low: 54 °F

Detailed Forecast

Tonight

Patchy frost after 5am. Otherwise, mostly clear, with a low around 36. West wind 3 to 6 mph.

Wednesday

A chance of showers after 3pm. Patchy frost before 8am. Otherwise, increasing clouds, with a high near 62. Calm wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night

Showers, mainly before 3am. Low around 51. South wind 9 to 15 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday

A chance of showers, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 68. West wind 10 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night

Partly cloudy, with a low around 54. South wind around 8 mph.

Friday

A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

Saturday

Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 60%.

Saturday Night

Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

Sunday

Showers likely and possibly a thunderstorm before 2pm, then a chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

Sunday Night

A chance of showers. Partly cloudy, with a low around 42. Chance of precipitation is 30%.

Monday

Mostly sunny, with a high near 59.

Monday Night

Partly cloudy, with a low around 43.

Tuesday

Mostly sunny, with a high near 66.