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

Moke Impacts Hawaii; Severe Thunderstorms and Heavy Rainfall from the Great Basin to the Plains

Heavy rain and gusty winds from Tropical Storm Moke will impact the Big Island into Monday, risking life-threatening flooding and mudslides in windward and southeast areas. Severe thunderstorms are expected across the northern Rockies/Plains and northern Great Basin. Dangerous heat persists across the Southern Plains and Lower Mississippi Valley, building further into the Southwest by midweek. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

68°F

20°C

Humidity 40%
Wind Speed WNW 11 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 24 Aug 01:20 AM MDT
Extended Forecast for

Arapahoe WY

  • Overnight

    Overnight: A 20 percent chance of showers before 2am. Partly cloudy, with a low around 58. South southwest wind around 6 mph becoming calm. Winds could gust as high as 24 mph.

    Low: 58 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 88. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 88 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and 10pm. Mostly cloudy, with a low around 55. West northwest wind 5 to 9 mph becoming south southwest in the evening. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 84. Light and variable wind becoming north 5 to 7 mph in the afternoon.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54. North northeast wind 5 to 8 mph becoming light and variable after midnight.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. North wind around 6 mph becoming light and variable after midnight.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers before 2am. Partly cloudy, with a low around 58. South southwest wind around 6 mph becoming calm. Winds could gust as high as 24 mph.
Monday
A 50 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Mostly sunny, with a high near 88. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Monday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and 10pm. Mostly cloudy, with a low around 55. West northwest wind 5 to 9 mph becoming south southwest in the evening. Chance of precipitation is 30%.
Tuesday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 84. Light and variable wind becoming north 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 54. North northeast wind 5 to 8 mph becoming light and variable after midnight.
Wednesday
Mostly sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 55. North wind around 6 mph becoming light and variable after midnight.
Thursday
Mostly 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 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Sunday
Sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arapahoe WY
 42.97°N 108.46°W (Elev. 4993 ft)
Last Update:
12:31 am MDT Aug 24, 2026
Forecast Valid:
1am MDT Aug 24, 2026-6pm MDT Aug 30, 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