Upper Lake, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Upper Lake, CA in one place.
Sunny, with a high near 90. North northeast wind 0 to 3 mph.
Local Weather Overview
This forecast page for Upper Lake, 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: Oct 13, 2026 9:21 PM PDT.
The active forecast window currently covers Oct 15 to Oct 20, 2026 for Upper Lake, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 20, 2026
- Latest sync
- Oct 13, 2026 9:21 PM PDT
- Forecast office
- EKA
- Source
- NOAA / NWS
Daily Outlook
This Week in Upper Lake
Thursday looks like the warmest upcoming period in Upper Lake at 90 degrees F.
Monday Night is the coolest period ahead with temperatures near 38 degrees F.
The strongest winds are forecast for Monday at about 6 to 13 mph WNW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 9:21 PM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- EKA
- Radar station
- KBBX
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. North wind around 3 mph.
Sunny, with a high near 88. South southwest wind 1 to 6 mph.
Clear, with a low around 53.
Sunny, with a high near 83.
Mostly clear, with a low around 46.
Sunny, with a high near 72.
Partly cloudy, with a low around 41.
A chance of rain after 11am. Mostly sunny, with a high near 63.
A slight chance of rain. Partly cloudy, with a low around 38.
A chance of rain. Mostly sunny, with a high near 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Sunny
|
90°F |
0 to 3 mph
NNE
|
|
Thursday Night
Oct 15
|
Clear
|
54°F |
3 mph
N
|
|
Friday
Oct 16
|
Sunny
|
88°F |
1 to 6 mph
SSW
|
|
Friday Night
Oct 16
|
Clear
|
53°F |
1 to 6 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
83°F |
1 to 7 mph
WSW
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
46°F |
2 to 7 mph
NW
|
|
Sunday
Oct 18
|
Sunny
|
72°F |
2 to 7 mph
WNW
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
41°F |
8 mph
WNW
|
|
Monday
Oct 19
|
Chance Light Rain
|
63°F |
6 to 13 mph
WNW
|
|
Monday Night
Oct 19
|
Slight Chance Light Rain
|
38°F |
5 to 12 mph
NW
|
|
Tuesday
Oct 20
|
Chance Light Rain
|
63°F |
5 to 9 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Upper Lake.
