Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Partly Cloudy

68°F

20°C

Humidity	81%
Wind Speed	S 6 mph
Barometer	30.34 in (1027.1 mb)
Dewpoint	62°F (17°C)
Visibility	10.00 mi
Last update	16 Sep 8:53 am EDT

More Information:

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

Extended Forecast for

Irwin PA

Today
High: 87 °F
Mostly Sunny
then Chance
T-storms
Tonight
Low: 68 °F
Showers
Likely then
Chance
Showers
Thursday
High: 84 °F
Showers
Thursday Night
Low: 66 °F
Showers then
Chance
Showers
Friday
High: 79 °F
Partly Sunny
Friday Night
Low: 57 °F
Partly Cloudy
Saturday
High: 79 °F
Mostly Sunny
then Chance
Showers
Saturday Night
Low: 64 °F
Chance
T-storms then
Showers
Likely
Sunday
High: 78 °F
Showers

Detailed Forecast

Today

A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 87. Southwest wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 84. West wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 66. West wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Partly sunny, with a high near 79. North wind 5 to 8 mph.

Friday Night

Partly cloudy, with a low around 57.

Saturday

A chance of showers after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 30%.

Saturday Night

A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

Sunday

Showers. High near 78. Chance of precipitation is 80%.

Sunday Night

Showers likely, mainly before 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

Monday

A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.

Tuesday

A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 40%.