Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Pittsburgh/Butler Regional Airport (KBTP)

Lat: 40.78°NLon: 79.96°WElev: 1248ft.

Light Rain Fog/Mist

54°F

12°C

Humidity	100%
Wind Speed	NE 12 mph
Barometer	30.07 in (1018.9 mb)
Dewpoint	54°F (12°C)
Visibility	3.00 mi
Wind Chill	50°F (10°C)
Last update	21 Sep 5:56 pm EDT

More Information:

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

Extended Forecast for

Tarentum PA

Flood Watch September 21, 06:29pm until September 23, 08:00am

Click here for hazard details and duration

Flood Watch

Flood Watch September 21, 06:29pm until September 23, 08:00am
NOW until 8:00am Wed
Flood Watch
Tonight
Low: 55 °F
Showers
Tuesday
High: 64 °F
Showers
Tuesday Night
Low: 51 °F
Showers
Wednesday
High: 63 °F
Chance
Showers
Wednesday Night
Low: 50 °F
Slight Chance
Showers
Thursday
High: 66 °F
Mostly Sunny
Thursday Night
Low: 45 °F
Mostly Clear
Friday
High: 69 °F
Sunny

Detailed Forecast

Tonight

Showers, mainly before 4am. Low around 55. East wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday

Showers. High near 64. East wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday Night

Showers, mainly before 9pm. Low around 51. East wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 63. East wind 11 to 14 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

A slight chance of showers before 2am. Mostly cloudy, with a low around 50. East wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Thursday

Mostly sunny, with a high near 66.

Thursday Night

Mostly clear, with a low around 45.

Friday

Sunny, with a high near 69.

Friday Night

Mostly clear, with a low around 46.

Saturday

Sunny, with a high near 70.

Saturday Night

Partly cloudy, with a low around 48.