10-day forecast for Fullerton, CA: 46° to 69°, with precipitation expected on 7 days. The table below breaks each day into morning, afternoon, evening and overnight.
69°
Best day: Sunday, November 15
59° · 1.2 in
Worst day: Friday, November 20
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1469° / 53°0.26
Morning60°feels 60°
Afternoon69°feels 69°
Evening59°feels 59°
Overnight56°feels 56°
69 °
Fullerton, Saturday, 14 November
Rain. High 69°, low 53°.
Pressure29.91 inHg
Wind2.3 mph S
Humidity60%
Visibility6.2 mi
Dew point54°
Sun, 1569° / 55°0
Morning58°feels 57°
Afternoon69°feels 68°
Evening61°feels 61°
Overnight57°feels 56°
69 °
Fullerton, Sunday, 15 November
Clear. High 69°, low 55°.
Pressure30.06 inHg
Wind1.7 mph SW
Humidity55%
Visibility6.2 mi
Dew point52°
Mon, 1668° / 56°0.38
Morning59°feels 59°
Afternoon66°feels 66°
Evening57°feels 57°
Overnight58°feels 58°
68 °
Fullerton, Monday, 16 November
Rain. High 68°, low 56°.
Pressure30.00 inHg
Wind2.6 mph SW
Humidity62%
Visibility6.2 mi
Dew point54°
Tue, 1762° / 50°0
Morning53°feels 51°
Afternoon58°feels 56°
Evening58°feels 56°
Overnight50°feels 49°
62 °
Fullerton, Tuesday, 17 November
Light rain. High 62°, low 50°.
Pressure30.03 inHg
Wind11.7 mph W
Humidity46%
Visibility—
Dew point37°
Wed, 1865° / 46°0.04
Morning50°feels 48°
Afternoon60°feels 58°
Evening63°feels 61°
Overnight58°feels 58°
65 °
Fullerton, Wednesday, 18 November
Light rain. High 65°, low 46°.
Pressure30.18 inHg
Wind9 mph SW
Humidity52%
Visibility—
Dew point40°
Thu, 1962° / 57°0.75
Morning61°feels 60°
Afternoon58°feels 57°
Evening60°feels 58°
Overnight59°feels 58°
62 °
Fullerton, Thursday, 19 November
Rain. High 62°, low 57°.
Pressure29.94 inHg
Wind8.3 mph W
Humidity81%
Visibility—
Dew point52°
Fri, 2059° / 56°1.2
Morning57°feels 56°
Afternoon59°feels 57°
Evening58°feels 57°
Overnight56°feels 54°
59 °
Fullerton, Friday, 20 November
Rain. High 59°, low 56°.
Pressure29.91 inHg
Wind11.3 mph W
Humidity54%
Visibility—
Dew point42°
Sat, 2158° / 54°0.17
Morning55°feels 53°
Afternoon57°feels 55°
Evening58°feels 56°
Overnight55°feels 53°
58 °
Fullerton, Saturday, 21 November
Light rain. High 58°, low 54°.
Pressure29.97 inHg
Wind7.9 mph N
Humidity51%
Visibility—
Dew point38°
Sun, 2264° / 54°0
Morning55°feels 53°
Afternoon60°feels 57°
Evening63°feels 60°
Overnight59°feels 56°
64 °
Fullerton, Sunday, 22 November
Overcast. High 64°, low 54°.
Pressure30.06 inHg
Wind5.1 mph SW
Humidity44%
Visibility—
Dew point36°
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 Fullerton, 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.