10-Day Weather Forecast - Northumberland, PA

Partly sunny. Patchy fog in the morning. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 50 percent.

Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the upper 60s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 40 percent.

Mostly sunny. Humid with highs in the mid 80s. West winds around 5 mph.

Mostly clear. Humid with lows in the mid 60s. Northwest winds around 5 mph in the evening, becoming light and variable.

Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid. Very warm with highs in the upper 80s. Chance of rain 30 percent.

Mostly cloudy with a chance of showers. Humid with lows in the upper 60s. Chance of rain 40 percent.

Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the mid 80s. Chance of rain 70 percent.

Showers likely with a chance of thunderstorms. Humid with lows in the mid 60s. Chance of rain 70 percent.

Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Chance of rain 50 percent.

Mostly cloudy in the evening, then becoming partly cloudy. A chance of thunderstorms in the evening. A chance of showers. Humid with lows in the lower 60s. Chance of rain 50 percent.

Mostly sunny. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 30 percent.

Partly cloudy. A chance of showers and thunderstorms in the evening. Lows around 60. Chance of rain 30 percent.

Mostly sunny. Highs in the upper 70s.

Clear. Low temperature around 59F. Dew point will be around 59F with an average humidity of 84%. Winds will be 2 mph from the NW.

Mostly sunny. High temperature around 75F. Dew point will be around 60F with an average humidity of 77%. Winds will be 2 mph from the NW.

Mostly clear. Low temperature around 59F. Dew point will be around 58F with an average humidity of 84%. Winds will be 1 mph from the NE.

Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 73F. Dew point will be around 60F with an average humidity of 79%. Winds will be 1 mph from the N.

Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 61F. Dew point will be around 60F with an average humidity of 87%. Winds will be 1 mph from the E.