10-Day Weather Forecast - Northumberland, PA

Rain showers with a chance of thunderstorms this morning then a slight chance of rain showers this afternoon. Some thunderstorms may produce gusty winds this morning. Breezy warm with highs in the lower 50s. Temperature falling into the lower 30s this afternoon. Southwest winds 15 to 25 mph becoming west 15 to 20 mph this afternoon. Gusts up to 50 mph. Chance of rain near 100 percent.

Mostly cloudy in the evening then clearing. Much cooler with lows in the lower 20s. West winds 10 to 15 mph. Gusts up to 40 mph decreasing to 30 mph after midnight.

Sunny in the morning then becoming partly sunny. Much cooler with highs in the mid 30s. West winds around 5 mph becoming south in the afternoon.

Mostly cloudy. Near steady temperature in the lower 30s. South winds 5 to 10 mph with gusts up to 20 mph.

Mostly sunny. Highs in the upper 30s. Temperature falling into the lower 30s in the afternoon. West winds 10 to 15 mph with gusts up to 25 mph.

Partly cloudy. Lows around 20.

Mostly sunny. Highs in the mid 30s.

Mostly cloudy. A chance of snow showers after midnight. Lows in the mid 20s. Chance of snow 30 percent.

Cloudy. A chance of snow showers in the morning. Highs in the upper 30s. Chance of snow 40 percent.

Mostly cloudy. Lows in the lower 30s.

Mostly sunny. Highs in the lower 40s.

Mostly cloudy. A chance of snow showers after midnight. Lows in the upper 20s. Chance of snow 30 percent.

Mostly cloudy. A chance of rain showers in the morning. Highs in the mid 40s. Chance of rain 40 percent.

Cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 42F. Dew point will be around 40F with an average humidity of 91%. Winds will be 2 mph from the S.

Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 52F. Dew point will be around 42F with an average humidity of 81%. Winds will be 3 mph from the W.

Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 37F. Dew point will be around 37F with an average humidity of 85%. Winds will be 3 mph from the NW.

Cloudy. High temperature around 48F. Dew point will be around 36F with an average humidity of 75%. Winds will be 2 mph from the NW.

Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 34F. Dew point will be around 32F with an average humidity of 81%. Winds will be 2 mph from the NW.