Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Pittsburgh/Butler Regional Airport (KBTP)

Lat: 40.78°NLon: 79.96°WElev: 1248ft.

Fair

45°F

7°C

Humidity	100%
Wind Speed	NE 5 mph
Barometer	30.16 in (1022.0 mb)
Dewpoint	45°F (7°C)
Visibility	10.00 mi
Wind Chill	42°F (6°C)
Last update	4 Oct 5:56 am EDT

More Information:

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

Extended Forecast for

Harrison Township PA

Today
High: 73 °F
Decreasing
Clouds
Tonight
Low: 49 °F
Mostly Clear
Monday
High: 65 °F
Sunny
Monday Night
Low: 39 °F
Clear
Tuesday
High: 64 °F
Sunny
Tuesday Night
Low: 42 °F
Mostly Clear
Wednesday
High: 72 °F
Sunny
Wednesday Night
Low: 48 °F
Partly Cloudy
Thursday
High: 71 °F
Mostly Sunny

Detailed Forecast

Today

Mostly cloudy, then gradually becoming sunny, with a high near 73. Calm wind becoming southwest around 6 mph in the morning.

Tonight

Mostly clear, with a low around 49. Northwest wind around 5 mph becoming calm in the evening.

Monday

Sunny, with a high near 65. Northwest wind 6 to 13 mph.

Monday Night

Clear, with a low around 39. Northwest wind 5 to 7 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 64. Calm wind.

Tuesday Night

Mostly clear, with a low around 42.

Wednesday

Sunny, with a high near 72.

Wednesday Night

Partly cloudy, with a low around 48.

Thursday

Mostly sunny, with a high near 71.

Thursday Night

Mostly clear, with a low around 47.

Friday

Sunny, with a high near 71.

Friday Night

Partly cloudy, with a low around 47.

Saturday

Mostly sunny, with a high near 70.

Additional Forecasts and Information

Zone Area Forecast for Allegheny County, PA

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ABOUT THIS FORECAST

Point Forecast:

Harrison Township PA
40.63°N 79.72°W (Elev. 997 ft)

6:11 am EDT Oct 4, 2026

Forecast Valid:

6am EDT Oct 4, 2026-6pm EDT Oct 10, 2026

Forecast Discussion

Additional Resources

Radar & Satellite Image

Link to Local Radar Data

Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation