10-day forecast for Guernsey, CA: 40° to 82°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
82°
Best day: Thursday, November 12
56° · 0.8 in
Worst day: Thursday, November 19
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 1369° / 49°0.45
Morning61°feels 60°
Afternoon67°feels 67°
Evening53°feels 52°
Overnight52°feels 51°
69 °
Guernsey, Friday, 13 November
Rain. High 69°, low 49°.
Pressure29.71 inHg
Wind11.8 mph S
Humidity52%
Visibility6.2 mi
Dew point49°
Sat, 1464° / 49°0
Morning51°feels 50°
Afternoon64°feels 63°
Evening52°feels 51°
Overnight51°feels 50°
64 °
Guernsey, Saturday, 14 November
Overcast. High 64°, low 49°.
Pressure30.00 inHg
Wind1 mph NW
Humidity59%
Visibility6.2 mi
Dew point48°
Sun, 1569° / 46°0
Morning50°feels 49°
Afternoon69°feels 68°
Evening57°feels 56°
Overnight47°feels 47°
69 °
Guernsey, Sunday, 15 November
Clear. High 69°, low 46°.
Pressure30.06 inHg
Wind4.3 mph SE
Humidity48%
Visibility6.2 mi
Dew point47°
Mon, 1662° / 48°0.1
Morning53°feels 52°
Afternoon55°feels 53°
Evening58°feels 56°
Overnight53°feels 52°
62 °
Guernsey, Monday, 16 November
Light rain. High 62°, low 48°.
Pressure30.15 inHg
Wind12.2 mph NW
Humidity83%
Visibility—
Dew point49°
Tue, 1757° / 40°0
Morning45°feels 44°
Afternoon53°feels 50°
Evening54°feels 52°
Overnight45°feels 45°
57 °
Guernsey, Tuesday, 17 November
Clear. High 57°, low 40°.
Pressure30.03 inHg
Wind6.2 mph NW
Humidity59%
Visibility—
Dew point37°
Wed, 1855° / 46°0.24
Morning49°feels 46°
Afternoon54°feels 52°
Evening53°feels 51°
Overnight51°feels 50°
55 °
Guernsey, Wednesday, 18 November
Rain. High 55°, low 46°.
Pressure30.15 inHg
Wind12 mph E
Humidity63%
Visibility—
Dew point41°
Thu, 1956° / 53°0.8
Morning53°feels 53°
Afternoon54°feels 54°
Evening56°feels 56°
Overnight55°feels 54°
56 °
Guernsey, Thursday, 19 November
Rain. High 56°, low 53°.
Pressure30.00 inHg
Wind9.3 mph SE
Humidity94%
Visibility—
Dew point52°
Fri, 2061° / 49°0.16
Morning53°feels 51°
Afternoon57°feels 56°
Evening59°feels 57°
Overnight53°feels 51°
61 °
Guernsey, Friday, 20 November
Light rain. High 61°, low 49°.
Pressure29.91 inHg
Wind9.7 mph SW
Humidity63%
Visibility—
Dew point44°
Sat, 2158° / 50°0
Morning52°feels 50°
Afternoon54°feels 52°
Evening56°feels 54°
Overnight51°feels 48°
58 °
Guernsey, Saturday, 21 November
Overcast. High 58°, low 50°.
Pressure30.12 inHg
Wind5.2 mph N
Humidity66%
Visibility—
Dew point42°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Guernsey, CA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.