National Weather Service United States Department of Commerce

Winter weather forecast for Rockies and southern Plains

A developing storm system will bring snow to parts of the Rockies and southern Plains on Friday, which will move into the central U.S. on Saturday. Freezing rain is also forecast from Texas to the mid-Mississippi Valley and into the Carolinas. Meanwhile, temperatures will be 20-40 degrees below normal across parts of the central and southern U.S. on Friday.
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Current Conditions

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3 Miles NW Mercersburg PA

7 Day Forecast

For More Weather Information:

State College, PA Local Forecast Office

Today

Partly Sunny

Partly
Sunny

High: 24 °F

Tonight

Partly Cloudy

Partly
Cloudy

Low: 4 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 24 °F

Saturday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 16 °F

Sunday

Wintry Mix Chance for Measurable Precipitation 40%

Wintry
Mix

High: 33 °F

Sunday
Night

Wintry Mix Chance for Measurable Precipitation 70%

Wintry
Mix

Low: 31 °F

Monday

Partly Sunny

Partly
Sunny

High: 36 °F

Monday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 19 °F

Tuesday

Rain/Snow Likely Chance for Measurable Precipitation 60%

Rain/Snow
Likely

High: 34 °F

Detailed Forecast

  • Today Partly sunny, with a high near 24. Northwest wind 8 to 13 mph.
  • Tonight Partly cloudy, with a low around 4. Wind chill values as low as -3. Northwest wind 5 to 10 mph.
  • Saturday Mostly sunny, with a high near 24. Wind chill values as low as -6. Northwest wind around 5 mph becoming calm in the morning.
  • Saturday Night A slight chance of snow after 4am. Increasing clouds, with a low around 16. Light south wind. Chance of precipitation is 20%.
  • Sunday A chance of snow before 1pm, then a chance of snow and freezing rain. Cloudy, with a high near 33. South wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
  • Sunday Night Rain, snow, and freezing rain likely. Cloudy, with a low around 31. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Monday Partly sunny, with a high near 36.
  • Monday Night Mostly cloudy, with a low around 19.
  • Tuesday Rain and snow likely. Cloudy, with a high near 34. Chance of precipitation is 60%.
  • Tuesday Night Rain or freezing rain likely. Cloudy, with a low around 30. Chance of precipitation is 60%.
  • Wednesday A chance of rain. Cloudy, with a high near 48. Chance of precipitation is 50%.
  • Wednesday Night A chance of rain and snow showers. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
  • Thursday A chance of snow showers. Partly sunny, with a high near 37. Chance of precipitation is 30%.