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South Mountain Park, PA 7-Day Night Weather Forecast
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South Mountain Park, PA Weather Forecast
South Mountain Park, PA Weather Forecast Date: 709 PM EDT Wed Aug 05 2026
The area/counties/county of: Lehigh, including the city of Allentown.or toggle through each period.
Tonight... Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly this evening. Patchy fog. Lows in the lower 70s. Southeast winds around 5 mph this evening, becoming light and variable. Chance of rain 50%.
Thursday... Partly sunny. Patchy fog in the morning. A chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 40%.
Thursday Night... Mostly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows around 70. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 50%.
Friday... Mostly sunny in the morning, then mostly cloudy with showers with a chance of thunderstorms in the afternoon. Hot with highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 80%.
Friday Night... Mostly cloudy. Showers with a chance of thunderstorms in the evening, then a chance of showers after midnight. Humid with lows in the upper 60s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 80%.
Saturday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 80s. Chance of rain 50%.
Saturday Night... Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of rain 50%.
Sunday... Sunny, hot with highs in the mid 80s.
Sunday Night... Mostly clear. Lows in the mid 60s.
Monday... Mostly sunny. Hot with highs in the upper 80s.
Monday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 40%.
Tuesday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 80s. Chance of rain 40%.
Tuesday Night... A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40%.
POP = Probability of Precipitation
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