Wildfire Smoke and Severe Thunderstorms in the East; Monsoon Thunderstorms in the Southwest

Wildfire smoke continues to impact air quality from the Great Lakes region into New England and the Mid-Atlantic today with widespread Air Quality Alerts in effect. Severe thunderstorms are expected across portions of the Ohio Valley and Lower Great Lakes into the Mid-Atlantic and Northeast, this afternoon into the evening. Monsoonal thunderstorms may bring areas of flooding to the Southwest. Read More >

Current conditions at

Alturas (KAAT)

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

Partly Cloudy

83°F

28°C

Humidity 18%
Wind Speed SE 4 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 18 Jul 11:55 AM PDT
Detailed forecast for

Modoc County

Today
Partly cloudy early this morning then becoming sunny. Highs in the mid 80s to lower 90s. South winds 5 to 10 mph shifting to the southwest 10 to 15 mph late this afternoon.
Tonight
Clear. Patchy smoke after midnight. Lows in the lower to mid 50s. West winds 10 to 20 mph shifting to the southwest 5 to 10 mph after midnight.
Sunday
Partly cloudy in the morning then becoming mostly cloudy. Patchy smoke. Highs in the mid 80s to lower 90s. East winds around 5 mph shifting to the southwest in the afternoon.
Sunday Night
Mostly cloudy. Lows in the lower to mid 60s. West winds 10 to 15 mph shifting to the southwest around 5 mph after midnight.
Monday
Mostly cloudy. Highs in the mid 80s to lower 90s. West winds around 5 mph.
Monday Night Through Tuesday Night
Mostly cloudy. Lows in the mid 50s to lower 60s. Highs in the mid 80s to lower 90s.
Wednesday
Partly cloudy in the morning, then sunny with a slight chance of thunderstorms in the afternoon. Highs in the mid 80s to lower 90s.
Wednesday Night
Partly cloudy with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 50s to lower 60s.
Thursday
Sunny. Highs in the mid 80s to lower 90s.
Thursday Night
Mostly clear. Slight chance of thunderstorms in the evening. Lows in the mid 50s.
Friday
Sunny. Highs in the mid 80s to lower 90s.



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239 AM PDT Sat Jul 18 2026
 
 

Additional Resources

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