National Weather Service United States Department of Commerce

Rainfall and mountain snow will continue across the western U.S. into Monday

Heavy precipitation along the west coast will persist with a focus along the Coastal Ranges and Cascades. While not nearly as impressive as recent days, the forecast suggests another 1 to 3 inches of rainfall is possible across this region. Farther inland, moderate to heavy snow is likely over the Wasatch and Colorado Rockies with 1 to 2 foot amounts possible through Monday.
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Hazardous Weather Conditions

Current Conditions

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3 Miles NW Mercersburg PA

7 Day Forecast

For More Weather Information:

State College, PA Local Forecast Office

Overnight

Partly Cloudy

Partly
Cloudy

Low: 25 °F

Monday

Wintry Mix Chance for Measurable Precipitation 40%

Wintry
Mix

High: 36 °F

Monday
Night

Chance Freezing Rain Chance for Measurable Precipitation 50%

Chance
Freezing Rain

Low: 33 °F

Tuesday

Chance Rain Chance for Measurable Precipitation 40%

Chance
Rain

High: 42 °F

Tuesday
Night

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

Low: 41 °F

Wednesday

Rain Chance for Measurable Precipitation 90%

Rain

High: 50 °F

Wednesday
Night

Rain Chance for Measurable Precipitation 80%

Rain

Low: 40 °F

Christmas
Day

Breezy

Breezy

High: 44 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 30 °F

Detailed Forecast

  • Overnight Partly cloudy, with a low around 25. Calm wind.
  • Monday A chance of rain and snow before 11am, then a chance of rain between 11am and 1pm, then a chance of rain or freezing rain after 1pm. Mostly cloudy, with a high near 36. Calm wind becoming southeast 5 to 7 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
  • Monday Night A chance of rain or freezing rain. Cloudy, with a low around 33. Light east wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
  • Tuesday A chance of rain. Cloudy, with a high near 42. Northeast wind around 5 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Tuesday Night Rain likely. Cloudy, with a low around 41. Southeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
  • Wednesday Rain. High near 50. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
  • Wednesday Night Rain. Low around 40. Chance of precipitation is 80%.
  • Christmas Day Partly sunny, with a high near 44. Breezy.
  • Thursday Night Partly cloudy, with a low around 30.
  • Friday Mostly sunny, with a high near 47.
  • Friday Night Mostly cloudy, with a low around 34.
  • Saturday Partly sunny, with a high near 45.
  • Saturday Night Mostly cloudy, with a low around 27.
  • Sunday Partly sunny, with a high near 40.