National Weather Service

Hazardous Weather Conditions

Current conditions at

Jamestown, Chautauqua County/Jamestown Airport (KJHW)

Lat: 42.15°NLon: 79.27°WElev: 1722ft.

Fair

81°F

27°C

Humidity	72%
Wind Speed	N 5 mph
Barometer	30.31 in (1025.4 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	85°F (29°C)
Last update	20 Jun 7:56 pm EDT

More Information:

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

Extended Forecast for

Warren PA

Heat Advisory June 20, 08:01pm until June 22, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory June 20, 08:01pm until June 22, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
Tonight
Low: 69 °F
Scattered
T-storms and
Patchy Fog
Friday
High: 91 °F
Scattered
T-storms and
Patchy Fog
Friday Night
Low: 67 °F
Partly Cloudy
Saturday
High: 93 °F
Chance
Showers then
Chance
T-storms
Saturday Night
Low: 70 °F
Chance
T-storms
Sunday
High: 88 °F
Chance
T-storms then
Showers
Likely
Sunday Night
Low: 63 °F
Showers
Likely then
Chance
T-storms
Monday
High: 81 °F
Chance
Showers

Detailed Forecast

Tonight

Scattered showers and thunderstorms, mainly before 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Isolated showers between 8am and 11am, then scattered showers and thunderstorms after 11am. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

Partly cloudy, with a low around 67. Calm wind.

Saturday

A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93. Calm wind becoming west around 6 mph 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.

Saturday Night

A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 70. Light south wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 88. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 63. Chance of precipitation is 60%.

Monday

A chance of showers between 8am and 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.

Monday Night

Mostly clear, with a low around 55.

Tuesday

Mostly sunny, with a high near 87.

Tuesday Night

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

Wednesday

A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 50%.

Wednesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 56. Chance of precipitation is 30%.