| NWS Forecast for: Jefferson County Issued by: National Weather Service Pittsburgh, PA Last Update: 1242 AM EDT Tue May 26 2026 | |
| Overnight: Mostly cloudy. Near steady temperature in the mid 50s. East winds around 5 mph. Today: Partly sunny. Highs in the upper 70s. Southeast winds around 5 mph, becoming south around 5 mph in the afternoon. Tonight: Considerable cloudiness. A slight chance of showers after midnight. Warm with lows in the lower 60s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent. Wednesday: Mostly cloudy. A slight chance of showers in the afternoon. Highs in the upper 70s. West winds 5 to 10 mph. Chance of rain 20 percent. Wednesday Night: Mostly cloudy in the evening, then clearing. Lows in the mid 50s. Northwest winds around 5 mph. Thursday: Mostly sunny. Highs in the lower 70s. Thursday Night: Clear. Lows in the upper 40s. Friday: Sunny. Highs in the lower 70s. Friday Night: Mainly clear. Lows in the upper 40s. Saturday: Mostly sunny. Highs in the lower 70s. Saturday Night: Mainly clear. Lows in the upper 40s. Sunday: Mostly sunny. Highs around 70. Sunday Night: Mainly clear. Lows around 50. Monday: Mostly sunny. Highs in the lower 70s. | |
| Zone Forecast: Jefferson County | |
Visit your local NWS office at: https://www.weather.gov/pbz/ |