National Weather Service United States Department of Commerce

Arctic Air Will Move Into U.S. This Week

Arctic air will move back into the central Plains, Great Lake States and Western U.S. this week. Winter Storm Warnings, Winter Weather Advisories and Wind Chill Advisories are in effect in many areas. Recent heavy rains across the lower Mississippi and Tennessee Valleys will shift into the Carolinas Monday. Rivers that came up over the weekend will recede across portions of the South.
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Current Conditions

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Casper WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Today

Snow Chance for Measurable Precipitation 90%

Snow

High: -13 °C

Tonight

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: -23 °C

Tuesday

Snow Chance for Measurable Precipitation 20%

Snow

High: -18 °C

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: -28 °C

Wednesday

Sunny

Sunny

High: -10 °C

Wednesday
Night

Mostly Clear

Mostly
Clear

Low: -18 °C

New Year's
Day

Sunny

Sunny

High: -1 °C

Thursday
Night

Mostly Clear

Mostly
Clear

Low: -9 °C

Friday

Mostly Sunny

Mostly
Sunny

High: -2 °C

Detailed Forecast

  • Today Snow, mainly before 4pm. High near -13. Wind chill values as low as -25. East wind 14 to 24 km/h, with gusts as high as 34 km/h. Chance of precipitation is 90%. Total daytime snow accumulation of 2 to 4 centimeters possible.
  • Tonight A 50 percent chance of snow. Cloudy, with a low around -23. Wind chill values as low as -30. Northeast wind 18 to 21 km/h. New snow accumulation of around a centimeter possible.
  • Tuesday A slight chance of snow showers before 11am, then a chance for flurries. Mostly cloudy and cold, with a high near -18. Wind chill values as low as -35. Northeast wind 18 to 21 km/h becoming south southwest in the morning. Chance of precipitation is 20%.
  • Tuesday Night Partly cloudy, with a low around -28. Wind chill values as low as -35. Northwest wind 10 to 16 km/h becoming south southwest in the evening.
  • Wednesday Sunny, with a high near -10. Southwest wind 23 to 26 km/h, with gusts as high as 37 km/h.
  • Wednesday Night Mostly clear, with a low around -18. West southwest wind 16 to 18 km/h.
  • New Year's Day Sunny, with a high near -1. West southwest wind 16 to 18 km/h.
  • Thursday Night Mostly clear, with a low around -9.
  • Friday Mostly sunny, with a high near -2.
  • Friday Night Partly cloudy, with a low around -7.
  • Saturday Mostly sunny, with a high near -1.
  • Saturday Night Mostly cloudy, with a low around -8.
  • Sunday Partly sunny, with a high near -2.