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Mac Arthur, PA Weather Forecast
Mac Arthur, PA Weather Forecast Date: 727 PM EDT Tue Sep 29 2026
The area/counties/county of: Beaver, including the cities of: Aliquippa, Beaver Falls, Ambridge, and Monaca.or toggle through each period.
Tonight... Mainly clear. Patchy fog after midnight. Lows in the mid 50s. South winds around 5 mph this evening, becoming light and variable.
Wednesday... Patchy fog in the morning. Partly sunny. Highs in the upper 70s. South winds around 5 mph.
Wednesday Night... Mostly cloudy. Lows in the lower 60s. South winds around 5 mph.
Thursday... Partly sunny. Highs around 80. South winds 5 to 10 mph.
Thursday Night... Mostly cloudy. Warm with lows in the mid 60s. Southwest winds 5 to 10 mph.
Friday... Showers likely in the morning, then showers in the afternoon. Highs in the mid 70s. Temperatures falling into the upper 60s in the afternoon. Chance of rain 90%.
Friday Night... Mostly cloudy. Showers in the evening. Much cooler with lows in the lower 50s. Chance of rain 90%.
Saturday... Partly cloudy. Highs in the upper 60s.
Saturday Night... Mostly cloudy. A chance of showers after midnight. Lows in the lower 50s. Chance of rain 30%.
Sunday... Partly sunny. A chance of showers in the morning. Highs in the upper 60s. Chance of rain 30%.
Sunday Night... Partly cloudy. Lows in the upper 40s.
Monday... Mostly sunny. Highs in the lower 60s.
Monday Night... Mainly clear. Lows in the lower 40s.
POP = Probability of Precipitation
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