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Lock Alsh Reservoir, PA Weather Forecast
Lock Alsh Reservoir, PA Weather Forecast Date: 432 PM EDT Sat Aug 08 2026
The area/counties/county of: Eastern Montgomery, including the cities of: Norristown and Lansdale.or toggle through each period.
Tonight... Partly cloudy with a chance of showers and thunderstorms this evening, then mostly clear with a slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 30%.
Sunday... Sunny, hot with highs in the lower 90s. West winds 5 to 10 mph.
Sunday Night... Clear with lows around 70. West winds around 5 mph in the evening, becoming light and variable.
Monday... Mostly sunny. A chance of showers in the afternoon. Hot with highs in the lower 90s. West winds 5 to 10 mph. Chance of rain 30%.
Monday Night... Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers. Humid with lows in the lower 70s. West winds 5 to 10 mph. Chance of rain 40%.
Tuesday... Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Hot with highs in the upper 80s. Chance of rain 50%.
Tuesday Night... A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 50%.
Wednesday... Partly sunny. A chance of showers in the afternoon. Hot with highs in the mid 80s. Chance of rain 30%.
Wednesday Night... Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 50%.
Thursday... Mostly sunny. A chance of showers in the morning. Hot with highs in the mid 80s. Chance of rain 40%.
Thursday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. Lows in the upper 60s. Chance of rain 30%.
Friday... Mostly sunny. Highs in the lower 80s.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.
POP = Probability of Precipitation
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