| NWS Forecast for: Armstrong County Issued by: National Weather Service Pittsburgh, PA Last Update: 1202 AM EDT Tue Jun 30 2026 | |
Overnight: Clear. Patchy fog. Lows in the upper 60s. Southeast winds around 5 mph. Today: Mostly sunny. Hot with highs in the lower 90s. Southwest winds 5 to 10 mph. Heat index values up to 103 in the afternoon. Tonight: Mainly clear. Warm with lows in the lower 70s. Southwest winds 5 to 10 mph. Wednesday: Mostly sunny. Hot with highs in the upper 90s. West winds 5 to 10 mph. Heat index values up to 108. Wednesday Night: Clear. Patchy fog after midnight. Warm with lows in the lower 70s. Southwest winds around 5 mph. Thursday: Sunny, hot with highs in the upper 90s. Heat index values up to 105. Thursday Night: Mainly clear. Warm with lows in the mid 70s. Friday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Chance of rain 30 percent. Heat index values up to 100. Friday Night: Mostly cloudy with a chance of showers and thunderstorms. Warm with lows in the lower 70s. Chance of rain 40 percent. Independence Day: Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Hot with highs in the lower 90s. Chance of rain 50 percent. Heat index values in the upper 90s. Saturday Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 50 percent. Sunday: Partly sunny. A chance of showers and thunderstorms in the afternoon. Very warm with highs in the upper 80s. Chance of rain 40 percent. Sunday Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 40 percent. Monday: Partly sunny. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 60 percent. | |
| Zone Forecast: Armstrong County | |
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