Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Casper, Natrona County International Airport (KCPR)

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

Partly Cloudy

88°F

31°C

Humidity 19%
Wind Speed W 9 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 17 Aug 12:35 PM MDT
Extended Forecast for

9 Miles E Natrona WY

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 84. West wind 7 to 10 mph becoming south southwest.

    High: 84 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 56. Northwest wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 56 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 88. West southwest wind 6 to 11 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. West northwest wind 5 to 9 mph becoming east in the evening.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Light and variable wind becoming southeast 5 to 8 mph in the afternoon.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55. East southeast wind 5 to 9 mph becoming south after midnight.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. South southwest wind 5 to 9 mph.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. West wind 7 to 10 mph becoming south southwest.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 56. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 88. West southwest wind 6 to 11 mph.
Monday Night
Mostly clear, with a low around 53. West northwest wind 5 to 9 mph becoming east in the evening.
Tuesday
Sunny, with a high near 94. Light and variable wind becoming southeast 5 to 8 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 55. East southeast wind 5 to 9 mph becoming south after midnight.
Wednesday
Sunny, with a high near 96. South southwest wind 5 to 9 mph.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Sunny, with a high near 89.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles E Natrona WY
 43.03°N 106.63°W (Elev. 5512 ft)
11:28 am MDT Aug 17, 2025
12pm MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
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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