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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

SALTER (SAWC2)

Lat: 37.65119°NLon: 108.537°WElev: 8147.0ft.

NA

80°F

27°C

Humidity 16%
Wind Speed WSW 8 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Heat Index78°F (26°C)
Last update 17 Aug 04:24 PM MDT
Extended Forecast for

Lewis CO

  • Tonight

    Tonight: Mostly clear, with a low around 55. West wind 5 to 10 mph becoming northeast after midnight.

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. Northeast wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. West wind 5 to 10 mph becoming east northeast after midnight.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. East northeast wind 5 to 10 mph becoming west southwest in the afternoon.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. West wind 5 to 10 mph becoming east after midnight.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 92.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61.

    Low: 61 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 55. West wind 5 to 10 mph becoming northeast after midnight.
Monday
Sunny, with a high near 89. Northeast wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 57. West wind 5 to 10 mph becoming east northeast after midnight.
Tuesday
Sunny, with a high near 92. East northeast wind 5 to 10 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 60. West wind 5 to 10 mph becoming east after midnight.
Wednesday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 94.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61.
Friday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92.
Friday Night
A chance of showers. Mostly cloudy, with a low around 61.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 88.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewis CO
 37.5°N 108.67°W (Elev. 6680 ft)
Last Update:
3:37 pm MDT Aug 17, 2025
Forecast Valid:
5pm MDT Aug 17, 2025-6pm MDT Aug 24, 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