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

Heavy Rain Return to the Southwest U.S.; Potential Atlantic Tropical System Interaction

Heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding to the Desert Southwest into Sunday. The tropical wave (AL94) continues to bring heavy rainfall to Puerto Rico and the US Virgin Islands. The close proximity of Tropical Storm Humberto and AL94 could lead to interaction between them, but details of their track and intensity forecasts remain uncertain Read More >

Current conditions at

LYONS VALLEY (COWC1)

Lat: 39.12583°NLon: 123.07333°WElev: 3355.0ft.

NA

81°F

27°C

Humidity 28%
Wind Speed WSW 14 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Heat Index80°F (27°C)
Last update 25 Sep 04:01 PM PDT
Extended Forecast for

4 Miles ENE Calpella CA

  • Tonight

    Tonight: Mostly clear, with a low around 57. South southwest wind 5 to 8 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 60. West wind 5 to 7 mph becoming light and variable in the evening.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 92. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53. West southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 77. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of rain, mainly after 11pm. Cloudy, with a low around 55. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Chance Rain

  • Monday

    Monday: Rain likely. Mostly cloudy, with a high near 70.

    High: 70 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 57. South southwest wind 5 to 8 mph.
Friday
Sunny, with a high near 95. Calm wind becoming west 5 to 9 mph in the afternoon.
Friday Night
Clear, with a low around 60. West wind 5 to 7 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 92. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 53. West southwest wind 5 to 8 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 77. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Sunday Night
A 40 percent chance of rain, mainly after 11pm. Cloudy, with a low around 55. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely. Mostly cloudy, with a high near 70.
Monday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 52.
Tuesday
Rain likely. Mostly cloudy, with a high near 66.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 50.
Wednesday
A chance of rain. Partly sunny, with a high near 71.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Calpella CA
 39.24°N 123.12°W (Elev. 997 ft)
Last Update:
11:41 am PDT Sep 25, 2025
Forecast Valid:
4pm PDT Sep 25, 2025-6pm PDT Oct 2, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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