Sierra County, CA Weather Forecast
County weather hub
Mostly Cloudy
Compare major city weather across Sierra County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly cloudy, with a low around 38. South southeast wind around 5 mph.
County Weather Overview
This county weather page brings together forecast coverage for Sierra County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 0 of 0 mapped cities in Sierra County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 18 to Apr 25, 2026
- Latest sync
- Apr 18, 2026 8:16 PM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in Sierra County
Sunday looks like the warmest upcoming period in Sierra County at 62 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 27 degrees F.
The strongest winds are forecast for Monday at about 6 to 12 mph SSW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 18, 2026 8:16 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- STO
- 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. High near 62, with temperatures falling to around 60 in the afternoon. South wind 5 to 8 mph, with gusts as high as 22 mph.
Partly cloudy, with a low around 40. South southwest wind around 7 mph, with gusts as high as 21 mph.
A chance of rain after 5pm. Sunny, with a high near 59. South southwest wind 6 to 12 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain before 5am, then rain and snow. Mostly cloudy, with a low around 36. South southwest wind 6 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Rain and snow before 5pm, then a slight chance of thunderstorms and rain and snow showers. Cloudy, with a high near 43. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
A slight chance of thunderstorms and rain and snow showers before 11pm, then snow. Cloudy, with a low around 30. New snow accumulation of 4 to 8 inches possible.
Snow. Mostly cloudy, with a high near 41. New snow accumulation of 1 to 3 inches possible.
A chance of snow before 5am. Mostly cloudy, with a low around 27.
A slight chance of rain between 11am and 5pm, then a slight chance of rain and snow. Mostly sunny, with a high near 50.
A slight chance of rain and snow before 11pm. Partly cloudy, with a low around 30.
A slight chance of rain after 11am. Mostly sunny, with a high near 53.
A slight chance of rain before 11pm. Partly cloudy, with a low around 33.
A chance of rain after 11am. Mostly sunny, with a high near 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Apr 18
|
Mostly Cloudy
|
38°F |
5 mph
SSE
|
|
Sunday
Apr 19
|
Mostly Cloudy
|
62°F |
5 to 8 mph
S
|
|
Sunday Night
Apr 19
|
Partly Cloudy
|
40°F |
7 mph
SSW
|
|
Monday
Apr 20
|
Sunny then Chance Light Rain
|
59°F |
6 to 12 mph
SSW
|
|
Monday Night
Apr 20
|
Chance Rain then Rain And Snow
|
36°F |
6 to 10 mph
SSW
|
|
Tuesday
Apr 21
|
Rain And Snow
|
43°F |
8 mph
SSW
|
|
Tuesday Night
Apr 21
|
Slight Chance T-storms then Snow
|
30°F |
8 mph
SW
|
|
Wednesday
Apr 22
|
Snow
|
41°F |
9 mph
SW
|
|
Wednesday Night
Apr 22
|
Chance Light Snow
|
27°F |
2 to 7 mph
SW
|
|
Thursday
Apr 23
|
Slight Chance Light Rain then Slight Chance Rain And Snow
|
50°F |
2 to 6 mph
SW
|
|
Thursday Night
Apr 23
|
Slight Chance Rain And Snow then Partly Cloudy
|
30°F |
6 mph
NE
|
|
Friday
Apr 24
|
Slight Chance Light Rain
|
53°F |
6 mph
NE
|
|
Friday Night
Apr 24
|
Slight Chance Light Rain then Partly Cloudy
|
33°F |
6 mph
E
|
|
Saturday
Apr 25
|
Chance Light Rain
|
56°F |
6 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sierra County.
Nearby forecast pages are not available for this location yet.
Coverage
Forecast coverage currently spans 0 of 0 mapped cities in Sierra County.
