Cosumne, CA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Cosumne, CA in one place.
Mostly sunny, with a high near 79. West southwest wind around 5 mph.
Local Weather Overview
This forecast page for Cosumne, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 16, 2026 12:34 PM PDT.
The active forecast window currently covers Sep 17 to Sep 22, 2026 for Cosumne, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 17 to Sep 22, 2026
- Latest sync
- Sep 16, 2026 12:34 PM PDT
- Forecast office
- STO
- Source
- NOAA / NWS
Daily Outlook
This Week in Cosumne
Tuesday looks like the warmest upcoming period in Cosumne at 92 degrees F.
Thursday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Friday at about 2 to 7 mph NW.
The forecast from Sep 17 through Sep 22 stays mostly dry.
Forecast Details
- Last updated
- Sep 16, 2026 12:34 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- STO
- Radar station
- KDAX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 54. Southwest wind 1 to 5 mph.
Sunny, with a high near 87. Northwest wind 2 to 7 mph.
Clear, with a low around 57.
Sunny, with a high near 89.
Partly cloudy, with a low around 57.
Mostly sunny, with a high near 87.
Partly cloudy, with a low around 56.
Sunny, with a high near 88.
Mostly clear, with a low around 57.
Sunny, with a high near 92.
Mostly clear, with a low around 59.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Sep 17
|
Mostly Sunny
|
79°F |
5 mph
WSW
|
|
Thursday Night
Sep 17
|
Clear
|
54°F |
1 to 5 mph
SW
|
|
Friday
Sep 18
|
Sunny
|
87°F |
2 to 7 mph
NW
|
|
Friday Night
Sep 18
|
Clear
|
57°F |
6 mph
SSW
|
|
Saturday
Sep 19
|
Sunny
|
89°F |
5 mph
SSW
|
|
Saturday Night
Sep 19
|
Partly Cloudy
|
57°F |
5 mph
SSW
|
|
Sunday
Sep 20
|
Mostly Sunny
|
87°F |
6 mph
SW
|
|
Sunday Night
Sep 20
|
Partly Cloudy
|
56°F |
6 mph
SSW
|
|
Monday
Sep 21
|
Sunny
|
88°F |
5 mph
SW
|
|
Monday Night
Sep 21
|
Mostly Clear
|
57°F |
5 mph
S
|
|
Tuesday
Sep 22
|
Sunny
|
92°F |
5 mph
WSW
|
|
Tuesday Night
Sep 22
|
Mostly Clear
|
59°F |
5 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Cosumne.