10-day forecast for Guernsey, CA: 60° to 110°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
110°
Best day: Tuesday, August 11
84°
Worst day: Saturday, August 15
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 10108° / 75°0
Morning85°feels 82°
Afternoon107°feels 101°
Evening94°feels 90°
Overnight79°feels 79°
108 °
Guernsey, Monday, 10 August
Clear. High 108°, low 75°.
Pressure29.80 inHg
Wind6.6 mph SW
Humidity10%
Visibility6.2 mi
Dew point39°
Tue, 11110° / 73°0
Morning83°feels 81°
Afternoon108°feels 104°
Evening91°feels 87°
Overnight80°feels 80°
110 °
Guernsey, Tuesday, 11 August
Overcast. High 110°, low 73°.
Pressure29.83 inHg
Wind7.3 mph SW
Humidity11%
Visibility6.2 mi
Dew point39°
Wed, 12105° / 73°0
Morning81°feels 79°
Afternoon105°feels 99°
Evening86°feels 83°
Overnight77°feels 76°
105 °
Guernsey, Wednesday, 12 August
Partly cloudy. High 105°, low 73°.
Pressure29.77 inHg
Wind9.1 mph SW
Humidity10%
Visibility6.2 mi
Dew point36°
Thu, 1398° / 64°0
Morning79°feels 77°
Afternoon95°feels 91°
Evening77°feels 76°
Overnight68°feels 66°
98 °
Guernsey, Thursday, 13 August
Clear. High 98°, low 64°.
Pressure29.77 inHg
Wind16.2 mph SW
Humidity14%
Visibility—
Dew point38°
Fri, 14100° / 61°0
Morning76°feels 74°
Afternoon95°feels 91°
Evening83°feels 80°
Overnight72°feels 71°
100 °
Guernsey, Friday, 14 August
Clear. High 100°, low 61°.
Pressure29.83 inHg
Wind14.5 mph SW
Humidity16%
Visibility—
Dew point40°
Sat, 1584° / 62°0.01
Morning72°feels 71°
Afternoon79°feels 79°
Evening75°feels 74°
Overnight73°feels 72°
84 °
Guernsey, Saturday, 15 August
Light rain. High 84°, low 62°.
Pressure29.97 inHg
Wind7.6 mph NW
Humidity34%
Visibility—
Dew point47°
Sun, 1698° / 68°0
Morning79°feels 77°
Afternoon93°feels 90°
Evening79°feels 78°
Overnight71°feels 69°
98 °
Guernsey, Sunday, 16 August
Clear. High 98°, low 68°.
Pressure29.97 inHg
Wind12.5 mph W
Humidity22%
Visibility—
Dew point48°
Mon, 1798° / 60°0
Morning75°feels 73°
Afternoon93°feels 89°
Evening82°feels 80°
Overnight73°feels 72°
98 °
Guernsey, Monday, 17 August
Clear. High 98°, low 60°.
Pressure29.94 inHg
Wind15.3 mph NW
Humidity18%
Visibility—
Dew point41°
Tue, 1896° / 60°0
Morning74°feels 71°
Afternoon92°feels 88°
Evening82°feels 80°
Overnight73°feels 73°
96 °
Guernsey, Tuesday, 18 August
Overcast. High 96°, low 60°.
Pressure29.88 inHg
Wind16.2 mph NW
Humidity17%
Visibility—
Dew point39°
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.