| NWS Forecast for: Jefferson County Issued by: National Weather Service Pittsburgh, PA Last Update: 203 PM EDT Wed Sep 23 2026 |  |
| This Afternoon: Mostly sunny. Near steady temperature in the lower 60s. East winds 10 to 15 mph. Tonight: Mainly clear. Lows in the mid 40s. East winds 5 to 10 mph. Thursday: Mostly sunny. Highs in the mid 60s. East winds 5 to 10 mph with gusts up to 20 mph. Thursday Night: Clear. Lows in the lower 40s. Northeast winds around 5 mph. Friday: Mostly sunny. Highs in the upper 60s. North winds 5 to 10 mph. Friday Night: Mainly clear. Lows in the mid 40s. Saturday: Mostly sunny. Highs around 70. Saturday Night: Mainly clear. Lows in the upper 40s. Sunday: Partly cloudy. Highs in the upper 60s. Sunday Night: Mainly clear. Lows in the upper 40s. Monday: Mostly sunny. Highs in the upper 60s. Monday Night: Mainly clear. Lows in the upper 40s. Tuesday: Mostly sunny. Highs in the lower 70s. | |
| Zone Forecast: Jefferson County | |
Visit your local NWS office at: https://www.weather.gov/pbz/ |