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

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 >

Hazardous Weather Conditions

Current conditions at

FW5226 Shoshoni (F5226)

Lat: 43.24367°NLon: 108.11467°WElev: 4816.0ft.

NA

N/A

Humidity 51%
Wind Speed N 8 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 21 Jul 07:30 AM MDT
Extended Forecast for

13 Miles NNW Arminto WY

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79. West southwest wind 8 to 11 mph.

    High: 79 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Partly cloudy, with a low around 57. North northeast wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 80. Light south southwest wind becoming west southwest 5 to 10 mph in the morning.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. West wind 7 to 10 mph becoming east in the evening.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. East southeast wind 5 to 8 mph becoming west southwest in the afternoon.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. Breezy, with a west southwest wind 8 to 15 mph becoming east in the evening. Winds could gust as high as 20 mph.

    Low: 63 °F

    Clear then
    Mostly Clear
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 88. Southeast wind 7 to 10 mph becoming west northwest in the afternoon.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79. West southwest wind 8 to 11 mph.
Tonight
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Partly cloudy, with a low around 57. North northeast wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 20%.
Monday
Sunny, with a high near 80. Light south southwest wind becoming west southwest 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 61. West wind 7 to 10 mph becoming east in the evening.
Tuesday
Sunny, with a high near 86. East southeast wind 5 to 8 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 63. Breezy, with a west southwest wind 8 to 15 mph becoming east in the evening. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 88. Southeast wind 7 to 10 mph becoming west northwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 83.
Thursday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 78.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NNW Arminto WY
 43.35°N 107.38°W (Elev. 6801 ft)
Last Update:
11:28 am MDT Aug 17, 2025
Forecast Valid:
12pm MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
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