National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Hazardous Weather Conditions

Current conditions at

Casper, Natrona County International Airport (KCPR)

Lat: 42.8975°NLon: 106.47306°WElev: 5348.0ft.

Partly Cloudy

66°F

19°C

Humidity 63%
Wind Speed WNW 10 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 Jun 06:20 PM MDT
Extended Forecast for

Mills WY

Severe T-storm Watch June 20, 06:30pm until June 20, 09:00pm
Click here for hazard details and duration
...
  •  
    Severe T-storm Watch June 20, 06:30pm until June 20, 09:00pm

    NOW until 9:00pm Sat

    Severe T-storm Watch

  • Tonight

    Low: 50 °F

    Severe
    Thunderstorms
    and Breezy
    then Partly
    Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly between 10am and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Southwest wind 9 to 11 mph becoming north in the afternoon.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. East northeast wind 5 to 9 mph becoming light and variable after midnight.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Light and variable wind becoming north 9 to 14 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47. Breezy, with a north northeast wind 15 to 20 mph becoming light north after midnight. Winds could gust as high as 28 mph.

    Low: 47 °F

    Slight Chance
    T-storms and
    Breezy then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Light north wind becoming northeast 5 to 10 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. East northeast wind 9 to 14 mph, with gusts as high as 21 mph.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Tonight
Scattered showers and thunderstorms, mainly before 11pm. Some of the storms could be severe. Partly cloudy, with a low around 50. Breezy, with a north northwest wind 17 to 22 mph becoming north 7 to 12 mph in the evening. Winds could gust as high as 31 mph. Chance of precipitation is 30%.
Sunday
A 50 percent chance of showers and thunderstorms, mainly between 10am and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 77. Southwest wind 9 to 11 mph becoming north in the afternoon.
Sunday Night
Mostly clear, with a low around 48. East northeast wind 5 to 9 mph becoming light and variable after midnight.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Light and variable wind becoming north 9 to 14 mph in the afternoon. Winds could gust as high as 22 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 47. Breezy, with a north northeast wind 15 to 20 mph becoming light north after midnight. Winds could gust as high as 28 mph.
Tuesday
Mostly sunny, with a high near 78. Light north wind becoming northeast 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 47. East northeast wind 9 to 14 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Sunny, with a high near 91. Breezy.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 91. Windy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mills WY
 42.85°N 106.37°W (Elev. 5161 ft)
Last Update:
6:01 pm MDT Jun 20, 2026
Forecast Valid:
6pm MDT Jun 20, 2026-6pm MDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation