Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

Lat: 43.06219°NLon: 108.44701°WElev: 5443.0ft.

Overcast

43°F

6°C

Humidity 100%
Wind Speed NNW 6 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 13 Oct 01:00 AM MDT
Extended Forecast for

Riverton WY

  • Overnight

    Overnight: A 40 percent chance of showers, mainly before 3am.  Mostly cloudy, with a low around 37. North wind 6 to 8 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 7am, then a slight chance of showers after 4pm.  Mostly cloudy, with a high near 54. North northeast wind 6 to 10 mph.  Chance of precipitation is 20%.

    High: 54 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers, mainly after 9pm.  Low around 34. North wind 6 to 11 mph becoming west northwest after midnight.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 34 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, mainly before 9am.  Cloudy, with a high near 53. North northwest wind around 5 mph becoming calm  in the morning.  Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely then
    Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 36. Calm wind becoming northwest 5 to 7 mph after midnight.

    Low: 36 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 57. North wind 6 to 14 mph becoming east northeast in the afternoon. Winds could gust as high as 22 mph.

    High: 57 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. East northeast wind around 5 mph becoming light and variable  in the evening.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 30.

    Low: 30 °F

    Clear

Detailed Forecast

Overnight
A 40 percent chance of showers, mainly before 3am. Mostly cloudy, with a low around 37. North wind 6 to 8 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A slight chance of showers before 7am, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 54. North northeast wind 6 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
Showers, mainly after 9pm. Low around 34. North wind 6 to 11 mph becoming west northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, mainly before 9am. Cloudy, with a high near 53. North northwest wind around 5 mph becoming calm in the morning. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 36. Calm wind becoming northwest 5 to 7 mph after midnight.
Thursday
Mostly sunny, with a high near 57. North wind 6 to 14 mph becoming east northeast in the afternoon. Winds could gust as high as 22 mph.
Thursday Night
Mostly clear, with a low around 28. East northeast wind around 5 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 62.
Friday Night
Clear, with a low around 30.
Saturday
Sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
12:31 am MDT Oct 13, 2026
1am MDT Oct 13, 2026-6pm MDT Oct 19, 2026
 
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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