Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

Alturas (KAAT)

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

Clear

29°F

-2°C

Humidity 71%
Wind Speed ENE 3 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 19 May 05:55 AM PDT
Detailed forecast for

Modoc County

Today
Sunny. Highs in the mid 60s to lower 70s. North winds 5 to 10 mph.
Tonight
Mostly clear. Lows in the lower to mid 40s. Northwest winds 5 to 10 mph.
Wednesday
Partly cloudy in the morning then becoming sunny. Highs in the lower to mid 70s. North winds 5 to 10 mph.
Wednesday Night
Partly cloudy. Lows in the lower to mid 40s. North winds 5 to 10 mph shifting to the northeast well after midnight.
Thursday
Sunny. Highs in the lower 70s to lower 80s. Northeast winds around 5 mph.
Thursday Night
Partly cloudy in the evening then clearing. Lows in the mid 40s.
Friday Through Sunday Night
Mostly clear. Highs in the mid 70s to lower 80s. Lows in the mid 40s to lower 50s.
Memorial Day
Sunny. Highs in the lower 70s to lower 80s.



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239 AM PDT Tue May 19 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database