Current conditions at

Arco (ARC)

Lat: 43.62455° N Lon: 113.2971° W Elev: 5290.0 ft.

NA

37°F

3°C

Humidity 24%
Wind Speed NE 7 MPH
Barometer NA
Dewpoint 3°F (-16°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 18 Apr 11:55 PM MDT
Detailed forecast for

Lost River Valleys

Today
Increasing clouds. Not as cool. Highs 51 to 61. Light and variable winds...becoming west around 10 mph in the afternoon.
Tonight
Decreasing clouds. Isolated rain showers. Lows 28 to 37. Northwest winds 10 to 15 mph...decreasing to up to 10 mph after midnight.
Sunday
Mostly sunny. A slight chance of rain showers in the afternoon. Highs 52 to 62. Light and variable winds...becoming southwest 10 to 15 mph in the afternoon.
Sunday Night
Partly cloudy with a slight chance of rain showers. Lows 27 to 34. West winds 10 to 15 mph.
Monday
Mostly sunny with a slight chance of snow showers. Highs 45 to 55. West winds 10 to 15 mph.
Monday Night
Mostly clear. Lows 22 to 30.
Tuesday
Mostly sunny. Highs 50 to 60.
Tuesday Night
Mostly cloudy. Lows 28 to 36.
Wednesday And Wednesday Night
Partly cloudy. Highs 54 to 64. Lows 31 to 38.
Thursday
Mostly sunny with a slight chance of rain showers. Highs 57 to 67.
Thursday Night
Mostly cloudy with a slight chance of rain showers. Lows 35 to 42.
Friday
Partly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 57 to 67.



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156 AM MDT Sat Apr 19 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database