Weather WorldUpper Mahantongo, PA 7-Day Night Weather Forecast
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Upper Mahantongo, PA Weather Forecast
Upper Mahantongo, PA Weather Forecast Date: 1030 AM EDT Tue Sep 15 2026
The area/counties/county of: Northumberland, including the cities of: Sunbury and Shamokin.or toggle through each period.
Today... Patchy fog this morning. Sunny. Highs in the lower 70s. Southeast winds around 5 mph.
Tonight... Mostly clear. Patchy fog after midnight. Lows in the lower 50s. South winds around 5 mph.
Wednesday... Patchy fog in the morning. Mostly sunny. Highs around 80. South winds around 5 mph.
Wednesday Night... Partly cloudy. Not as cool with lows in the lower 60s. Light and variable winds.
Thursday... Partly sunny. A chance of showers in the afternoon. Very warm. Humid with highs in the lower 80s. South winds around 5 mph. Chance of rain 50%.
Thursday Night... Mostly cloudy with a chance of showers. Humid with lows in the mid 60s. Chance of rain 50%.
Friday... Mostly sunny. Highs in the upper 70s.
Friday Night... Partly cloudy. Cooler with lows in the mid 50s.
Saturday... Partly sunny. Highs in the lower 70s.
Saturday Night... Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50%.
Sunday... Mostly cloudy. A chance of showers in the morning, then showers likely in the afternoon. Humid with highs in the upper 70s. Chance of rain 70%.
Sunday Night... Showers likely. Lows in the upper 50s. Chance of rain 70%.
POP = Probability of Precipitation
Upper Mahantongo Radar Loop
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