Guernsey Mill, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Guernsey Mill, CA in one place.
Sunny, with a high near 72. West northwest wind 0 to 5 mph.
Local Weather Overview
This forecast page for Guernsey Mill, 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 15, 2026 12:54 PM PDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Guernsey Mill, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 12:54 PM PDT
- Forecast office
- HNX
- Source
- NOAA / NWS
Daily Outlook
This Week in Guernsey Mill
Saturday looks like the warmest upcoming period in Guernsey Mill at 77 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Wednesday at about 0 to 5 mph WNW.
The forecast from Sep 16 through Sep 21 stays mostly dry.
Forecast Details
- Last updated
- Sep 15, 2026 12:54 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- HNX
- Radar station
- KHNX
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 55. North wind 0 to 5 mph.
Sunny, with a high near 71. West northwest wind 0 to 5 mph.
Clear, with a low around 55. North northeast wind 0 to 5 mph.
Sunny, with a high near 73. West northwest wind around 5 mph.
Clear, with a low around 58. North northeast wind 0 to 5 mph.
Sunny, with a high near 77. West wind around 5 mph.
Mostly clear, with a low around 60. Northeast wind 0 to 5 mph.
Mostly sunny, with a high near 77. West wind 0 to 5 mph.
Mostly clear, with a low around 58. North northeast wind 0 to 5 mph.
Sunny, with a high near 74. Northwest wind 0 to 5 mph.
Mostly clear, with a low around 56. North northeast wind around 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Sunny
|
72°F |
0 to 5 mph
WNW
|
|
Wednesday Night
Sep 16
|
Clear
|
55°F |
0 to 5 mph
N
|
|
Thursday
Sep 17
|
Sunny
|
71°F |
0 to 5 mph
WNW
|
|
Thursday Night
Sep 17
|
Clear
|
55°F |
0 to 5 mph
NNE
|
|
Friday
Sep 18
|
Sunny
|
73°F |
5 mph
WNW
|
|
Friday Night
Sep 18
|
Clear
|
58°F |
0 to 5 mph
NNE
|
|
Saturday
Sep 19
|
Sunny
|
77°F |
5 mph
W
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
60°F |
0 to 5 mph
NE
|
|
Sunday
Sep 20
|
Mostly Sunny
|
77°F |
0 to 5 mph
W
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
58°F |
0 to 5 mph
NNE
|
|
Monday
Sep 21
|
Sunny
|
74°F |
0 to 5 mph
NW
|
|
Monday Night
Sep 21
|
Mostly Clear
|
56°F |
5 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Guernsey Mill.