Big Spring Reservoir, PA 7-Day Weather Forecast
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Big Spring Reservoir Weather Forecast


Big Spring Reservoir, PA Weather Forecast Date: 502 PM EDT Sat Aug 15 2026
Weather forecast for Big Spring Reservoir, PA
| Tonight Lo: 69°F Lo: 21°C |
Tonight... Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Some thunderstorms May produce heavy rainfall after midnight. Lows in the upper 60s. Southeast winds around 5 mph. Chance of rain 50%. |
| Sun Hi: 79°FHi: 26°C Lo: 69°F Lo: 21°C |
Sunday... Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Some thunderstorms May produce heavy rainfall in the morning. Some thunderstorms May produce heavy rainfall in the afternoon. Humid with highs in the upper 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100%. |
| Mon Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Monday... Showers. A chance of thunderstorms in the afternoon. Humid with highs in the upper 70s. West winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 80%. |
| Tue Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Tuesday... Areas of fog in the morning. Mostly sunny. Highs in the upper 70s. |
| Wed Hi: 80°FHi: 27°C Lo: 61°F Lo: 16°C |
Wednesday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 30%. |
| Thu Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Thursday... Mostly cloudy with showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 70%. |
| Fri Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Friday... Partly cloudy in the morning, then becoming partly sunny. Highs in the mid 70s. |
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