10-Day Weather Forecast - Northumberland, PA

Mostly sunny. Highs in the lower 70s. Northwest winds 5 to 10 mph.

Mostly clear. Lows in the upper 40s. Northwest winds 5 to 10 mph.

Sunny. Highs in the lower 70s. Northwest winds around 5 mph.

Mostly clear. Lows in the upper 40s. North winds around 5 mph.

Mostly sunny. Highs in the mid 70s.

Mostly clear. Lows in the lower 50s.

Mostly sunny. Highs in the upper 70s.

Partly cloudy in the evening then becoming mostly clear. Lows in the lower 50s.

Mostly sunny. Highs in the upper 70s.

Partly cloudy. Lows in the mid 50s.

Mostly sunny. Highs in the upper 70s.

Partly cloudy. Lows in the upper 50s.

Mostly sunny. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 30 percent.

Clear with a chance of rain. Chance of precipitation 45%. Low temperature around 56F. Dew point will be around 58F with an average humidity of 88%. Winds will be 1 mph from the SW.

Cloudy with a chance of rain. Chance of precipitation 50%. High temperature around 72F. Dew point will be around 59F with an average humidity of 82%. Winds will be 3 mph from the SW.

Clear with a chance of rain. Chance of precipitation 40%. Low temperature around 56F. Dew point will be around 56F with an average humidity of 83%. Winds will be 2 mph from the SW.

Mostly sunny. High temperature around 71F. Dew point will be around 55F with an average humidity of 75%. Winds will be 4 mph from the W.

Partly cloudy. Low temperature around 52F. Dew point will be around 51F with an average humidity of 79%. Winds will be 2 mph from the W.