| NWS Forecast for: Armstrong County Issued by: National Weather Service Pittsburgh, PA Last Update: 1217 AM EDT Wed Jul 29 2026 |  |
| Overnight: Partly cloudy. Lows in the lower 60s. Northwest winds 5 to 10 mph. Today: Partly sunny. Highs in the upper 70s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Tonight: Mainly clear. Lows in the mid 50s. Northwest winds 10 to 15 mph with gusts up to 25 mph, diminishing to around 5 mph after midnight. Thursday: Mostly sunny. Highs around 80. Northwest winds 5 to 10 mph. Thursday Night: Mainly clear. Areas of fog after midnight. Lows in the mid 50s. Northwest winds 5 to 10 mph in the evening, becoming light and variable. Friday: Areas of fog in the morning. Mostly sunny. Highs in the lower 80s. Friday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s. Saturday: Partly sunny in the morning, then becoming mostly cloudy. Highs in the mid 80s. Saturday Night: Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 30 percent. Sunday: Mostly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 60 percent. Sunday Night: Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Lows in the mid 60s. Chance of rain 60 percent. Monday: Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent. Monday Night: Mostly cloudy with a chance of showers and thunderstorms in the evening, then mainly clear after midnight. Lows in the lower 60s. Chance of rain 40 percent. Tuesday: Mostly sunny. Highs in the mid 80s. | |
| Zone Forecast: Armstrong County | |
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