Glenn County, CA Weather Forecast
County weather hub
Mostly Cloudy
Compare major city weather across Glenn County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly cloudy. Low around 50, with temperatures rising to around 52 overnight. West southwest wind around 5 mph.
County Weather Overview
This county weather page brings together forecast coverage for Glenn County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 3 of 3 mapped cities in Glenn County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 18 to Apr 25, 2026
- Latest sync
- Apr 18, 2026 10:38 PM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in Glenn County
Sunday looks like the warmest upcoming period in Glenn County at 74 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 43 degrees F.
The strongest winds are forecast for Sunday at about 2 to 14 mph ESE.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 18, 2026 10:38 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- STO
- Radar station
- KBBX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly sunny, with a high near 74. East southeast wind 2 to 14 mph, with gusts as high as 23 mph.
A chance of rain after 5am. Mostly cloudy, with a low around 47. South southeast wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Rain. Mostly cloudy, with a high near 62. Southeast wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Rain. Cloudy, with a low around 48. Southeast wind 6 to 9 mph. Chance of precipitation is 80%.
Rain before 11am, then showers and thunderstorms. Mostly cloudy, with a high near 59. Chance of precipitation is 90%.
A chance of showers and thunderstorms before 11pm, then a chance of rain. Mostly cloudy, with a low around 43.
A chance of rain before 5pm. Partly sunny, with a high near 62.
Partly cloudy, with a low around 43.
Sunny, with a high near 68.
Mostly clear, with a low around 46.
Sunny, with a high near 72.
Mostly clear, with a low around 48.
Sunny, with a high near 73.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Apr 18
|
Mostly Cloudy
|
50°F |
5 mph
WSW
|
|
Sunday
Apr 19
|
Partly Sunny
|
74°F |
2 to 14 mph
ESE
|
|
Sunday Night
Apr 19
|
Mostly Cloudy then Chance Light Rain
|
47°F |
6 to 14 mph
SSE
|
|
Monday
Apr 20
|
Rain
|
62°F |
6 to 9 mph
SE
|
|
Monday Night
Apr 20
|
Rain
|
48°F |
6 to 9 mph
SE
|
|
Tuesday
Apr 21
|
Showers And Thunderstorms
|
59°F |
6 to 10 mph
SE
|
|
Tuesday Night
Apr 21
|
Chance Showers And Thunderstorms then Chance Light Rain
|
43°F |
5 to 8 mph
S
|
|
Wednesday
Apr 22
|
Chance Light Rain
|
62°F |
5 to 8 mph
SSE
|
|
Wednesday Night
Apr 22
|
Partly Cloudy
|
43°F |
6 mph
WSW
|
|
Thursday
Apr 23
|
Sunny
|
68°F |
7 mph
N
|
|
Thursday Night
Apr 23
|
Mostly Clear
|
46°F |
7 mph
NW
|
|
Friday
Apr 24
|
Sunny
|
72°F |
6 to 9 mph
N
|
|
Friday Night
Apr 24
|
Mostly Clear
|
48°F |
6 mph
NW
|
|
Saturday
Apr 25
|
Sunny
|
73°F |
7 mph
ENE
|
Major City Forecasts
Live forecast snapshots for major cities across Glenn County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Glenn County.
Largest mapped city population in this region: 169,300.
