Lassen County, CA Weather Forecast
County weather hub
Sunny
Compare major city weather across Lassen County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 75. Southwest wind 0 to 10 mph.
County Weather Overview
This county weather page brings together forecast coverage for Lassen County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Lassen County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jun 2 to Jun 6, 2026
- Latest sync
- May 31, 2026 6:28 AM PDT
- Forecast office
- REV
- Source
- NOAA / NWS
Daily Outlook
This Week in Lassen County
Tuesday looks like the warmest upcoming period in Lassen County at 75 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 15 mph W.
The forecast from Jun 2 through Jun 6 stays mostly dry.
Forecast Details
- Last updated
- May 31, 2026 6:28 AM PDT
- Coverage
- 5 days
- Time zone
- America/Los_Angeles
- Forecast office
- REV
- Radar station
- KRGX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 50.
Mostly sunny, with a high near 74.
Mostly clear, with a low around 46.
Sunny, with a high near 73.
Mostly clear, with a low around 47.
Sunny, with a high near 75.
Mostly clear, with a low around 47.
Sunny, with a high near 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 2
|
Sunny
|
75°F |
0 to 10 mph
SW
|
|
Tuesday Night
Jun 2
|
Mostly Cloudy
|
50°F |
5 to 10 mph
NW
|
|
Wednesday
Jun 3
|
Mostly Sunny
|
74°F |
5 to 15 mph
W
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
46°F |
10 to 15 mph
NW
|
|
Thursday
Jun 4
|
Sunny
|
73°F |
5 to 10 mph
N
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
47°F |
5 to 10 mph
NW
|
|
Friday
Jun 5
|
Sunny
|
75°F |
5 to 15 mph
SW
|
|
Friday Night
Jun 5
|
Mostly Clear
|
47°F |
5 to 15 mph
W
|
|
Saturday
Jun 6
|
Sunny
|
68°F |
5 to 15 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Lassen County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Lassen County.
Largest mapped city population in this region: 14,425.