Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Alturas (KAAT)

Lat: 41.48362° N Lon: 120.5615° W Elev: 4383.0 ft.

Clear

68°F

20°C

Humidity 13%
Wind Speed E 3 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 18 Apr 03:35 PM PDT
Detailed forecast for

Modoc County

Tonight
Partly cloudy early this evening then becoming mostly cloudy. Lows around 40. Southwest winds 5 to 10 mph shifting to the southeast after midnight.
Sunday
Mostly cloudy. Highs in the mid 60s to lower 70s. Southeast winds around 5 mph increasing to south 10 to 20 mph in the late morning and afternoon.
Sunday Night
Mostly cloudy. Lows in the lower to mid 40s. Southwest winds 10 to 15 mph shifting to the southeast 5 to 10 mph well after midnight.
Monday
Mostly cloudy in the morning then clearing. Highs in the mid 60s to lower 70s. Breezy. Southeast winds 10 to 15 mph shifting to the south 15 to 25 mph with gusts to around 40 mph in the afternoon.
Monday Night
Partly cloudy in the evening then becoming mostly cloudy. A 30 percent chance of rain. Snow level 6500 feet after midnight. Lows in the mid 30s to lower 40s. Breezy. Southwest winds 15 to 25 mph becoming south around 5 mph.
Tuesday
Rain likely in the morning, then rain in the afternoon. Cooler. Highs in the mid 40s to mid 50s.
Tuesday Night
Rain and snow in the evening, then rain and snow likely after midnight. Lows in the lower to mid 30s.
Wednesday
Rain and snow. Highs in the lower 40s to lower 50s.
Wednesday Night
Mostly cloudy with a chance of rain and snow. Lows in the lower to mid 30s.
Thursday
Mostly cloudy with a slight chance of rain and snow in the morning, then partly cloudy with a slight chance of rain in the afternoon. Highs in the lower to mid 50s.
Thursday Night And Friday
Partly cloudy with a slight chance of rain. Lows in the lower to mid 30s. Highs in the lower 50s to lower 60s.
Friday Night
Partly cloudy in the evening then becoming mostly clear. Lows in the lower to mid 30s.
Saturday
Partly cloudy. Slight chance of rain in the afternoon. Highs in the lower to mid 60s.



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240 PM PDT Sat Apr 18 2026
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database