Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

63°F

17°C

Humidity 20%
Wind Speed SW 28 MPH
Barometer 29.6 in (1002.37 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 16 Apr 12:05 PM MDT
Extended Forecast for

3 Miles WNW Arapahoe WY

Winter Weather Advisory April 16, 03:00pm until April 17, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny, with a temperature falling to around 52 by 5pm. Windy, with a west southwest wind 20 to 25 mph, with gusts as high as 39 mph.

    High: 63 °F

    Chance
    Showers and
    Windy

  • Tonight

    Tonight: A chance of rain and snow showers before 1am, then a chance of snow showers.  Mostly cloudy, with a low around 27. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Blustery.
    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Friday

    Friday: A slight chance of snow showers before 7am, then a chance of snow showers after 1pm.  Mostly sunny, with a high near 44. North northwest wind 10 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of snow showers before midnight.  Partly cloudy, with a low around 19. North wind 6 to 13 mph becoming southwest after midnight.

    Low: 19 °F

    Slight Chance
    Snow Showers
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 57. South southwest wind 6 to 10 mph.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24. West southwest wind 5 to 10 mph.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Light and variable wind becoming south 5 to 8 mph in the afternoon.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a temperature falling to around 52 by 5pm. Windy, with a west southwest wind 20 to 25 mph, with gusts as high as 39 mph.
Tonight
A chance of rain and snow showers before 1am, then a chance of snow showers. Mostly cloudy, with a low around 27. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Friday
A slight chance of snow showers before 7am, then a chance of snow showers after 1pm. Mostly sunny, with a high near 44. North northwest wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Friday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 19. North wind 6 to 13 mph becoming southwest after midnight.
Saturday
Sunny, with a high near 57. South southwest wind 6 to 10 mph.
Saturday Night
Mostly clear, with a low around 24. West southwest wind 5 to 10 mph.
Sunday
Sunny, with a high near 67. Light and variable wind becoming south 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 44. Breezy.
Wednesday
Mostly sunny, with a high near 76. Breezy.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Arapahoe WY
 42.99°N 108.56°W (Elev. 5197 ft)
11:54 am MDT Apr 16, 2026
12pm MDT Apr 16, 2026-6pm MDT Apr 22, 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