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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

Mondell Field (KECS)

Lat: 43.89°NLon: 104.32°WElev: 4173ft.

Mostly Cloudy

46°F

8°C

Humidity 57%
Wind Speed NW 5 mph
Barometer 29.94 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 15 Nov 4:15 am MST
Extended Forecast for

Upton WY

  • Today

    Today: Sunny, with a high near 58. Calm wind becoming south around 6 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 59. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 21 mph.

    High: 59 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 37. Southeast wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 37 °F

    Increasing
    Clouds

  • Monday

    Monday: A 50 percent chance of rain. Cloudy, with a high near 52. South wind around 7 mph becoming northwest in the afternoon.

    High: 52 °F

    Chance Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 33. Northwest wind around 5 mph becoming light and variable after midnight.

    Low: 33 °F

    Chance Rain

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54. South wind 3 to 7 mph.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of rain after 11pm, mixing with snow after 3am. Mostly cloudy, with a low around 30. Southeast wind around 6 mph.

    Low: 30 °F

    Slight Chance
    Rain then
    Slight Chance
    Rain/Snow

  • Wednesday

    Wednesday: A slight chance of rain and snow before 8am, then a slight chance of rain. Partly sunny, with a high near 51.

    High: 51 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 58. Calm wind becoming south around 6 mph.
Tonight
Partly cloudy, with a low around 31. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 59. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Increasing clouds, with a low around 37. Southeast wind 6 to 10 mph, with gusts as high as 18 mph.
Monday
A 50 percent chance of rain. Cloudy, with a high near 52. South wind around 7 mph becoming northwest in the afternoon.
Monday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 33. Northwest wind around 5 mph becoming light and variable after midnight.
Tuesday
Mostly cloudy, with a high near 54. South wind 3 to 7 mph.
Tuesday Night
A slight chance of rain after 11pm, mixing with snow after 3am. Mostly cloudy, with a low around 30. Southeast wind around 6 mph.
Wednesday
A slight chance of rain and snow before 8am, then a slight chance of rain. Partly sunny, with a high near 51.
Wednesday Night
A chance of rain before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 27.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
Partly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Upton WY
 44.1°N 104.62°W (Elev. 4262 ft)
Last Update:
3:32 am MST Nov 15, 2025
Forecast Valid:
4am MST Nov 15, 2025-6pm MST Nov 21, 2025
 
Forecast Discussion
 
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Additional Resources

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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