Guernsey, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Guernsey, CA in one place.
Sunny, with a high near 91. Southwest wind 0 to 5 mph.
Local Weather Overview
This forecast page for Guernsey, 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 14, 2026 6:05 PM PDT.
The active forecast window currently covers Sep 16 to Sep 20, 2026 for Guernsey, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 20, 2026
- Latest sync
- Sep 14, 2026 6:05 PM PDT
- Forecast office
- HNX
- Source
- NOAA / NWS
Daily Outlook
This Week in Guernsey
Sunday looks like the warmest upcoming period in Guernsey at 94 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Wednesday Night at about 5 to 10 mph W.
The forecast from Sep 16 through Sep 20 stays mostly dry.
Forecast Details
- Last updated
- Sep 14, 2026 6:05 PM PDT
- Coverage
- 6 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
Mostly clear, with a low around 57. West wind 5 to 10 mph.
Sunny, with a high near 88. Northwest wind around 5 mph.
Clear, with a low around 58. Northwest wind around 5 mph.
Sunny, with a high near 90. North northwest wind around 5 mph.
Clear, with a low around 58. Northwest wind 0 to 5 mph.
Sunny, with a high near 93. Northwest wind 0 to 5 mph.
Mostly clear, with a low around 60. Northwest wind 0 to 5 mph.
Sunny, with a high near 94. Northwest wind around 5 mph.
Mostly clear, with a low around 60. Northwest wind around 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Sunny
|
91°F |
0 to 5 mph
SW
|
|
Wednesday Night
Sep 16
|
Mostly Clear
|
57°F |
5 to 10 mph
W
|
|
Thursday
Sep 17
|
Sunny
|
88°F |
5 mph
NW
|
|
Thursday Night
Sep 17
|
Clear
|
58°F |
5 mph
NW
|
|
Friday
Sep 18
|
Sunny
|
90°F |
5 mph
NNW
|
|
Friday Night
Sep 18
|
Clear
|
58°F |
0 to 5 mph
NW
|
|
Saturday
Sep 19
|
Sunny
|
93°F |
0 to 5 mph
NW
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
60°F |
0 to 5 mph
NW
|
|
Sunday
Sep 20
|
Sunny
|
94°F |
5 mph
NW
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
60°F |
5 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Guernsey.