10-day forecast for Fullerton, IL: 40° to 77°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
77°
Best day: Friday, October 30
73° · 0.42 in
Worst day: Sunday, November 1
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 2574° / 49°0
Morning53°feels 52°
Afternoon74°feels 73°
Evening57°feels 55°
Overnight51°feels 50°
74 °
Fullerton, Sunday, 25 October
Overcast. High 74°, low 49°.
Pressure30.42 inHg
Wind5 mph S
Humidity48%
Visibility6.2 mi
Dew point48°
Mon, 2674° / 50°0
Morning53°feels 52°
Afternoon72°feels 71°
Evening60°feels 59°
Overnight51°feels 49°
74 °
Fullerton, Monday, 26 October
Overcast. High 74°, low 50°.
Pressure30.33 inHg
Wind2.1 mph S
Humidity49%
Visibility6.2 mi
Dew point51°
Tue, 2770° / 52°0
Morning53°feels 52°
Afternoon70°feels 69°
Evening60°feels 60°
Overnight53°feels 53°
70 °
Fullerton, Tuesday, 27 October
Overcast. High 70°, low 52°.
Pressure30.24 inHg
Wind7.9 mph S
Humidity52%
Visibility6.2 mi
Dew point50°
Wed, 2873° / 53°0
Morning56°feels 55°
Afternoon73°feels 72°
Evening65°feels 64°
Overnight56°feels 55°
73 °
Fullerton, Wednesday, 28 October
Clear. High 73°, low 53°.
Pressure30.18 inHg
Wind10.5 mph S
Humidity54%
Visibility6.2 mi
Dew point51°
Thu, 2974° / 57°0
Morning62°feels 61°
Afternoon72°feels 72°
Evening65°feels 65°
Overnight62°feels 62°
74 °
Fullerton, Thursday, 29 October
Mostly clear. High 74°, low 57°.
Pressure30.18 inHg
Wind9.8 mph S
Humidity53%
Visibility—
Dew point53°
Fri, 3077° / 57°0
Morning62°feels 62°
Afternoon76°feels 75°
Evening68°feels 66°
Overnight65°feels 63°
77 °
Fullerton, Friday, 30 October
Mostly clear. High 77°, low 57°.
Pressure30.15 inHg
Wind9.5 mph S
Humidity43%
Visibility—
Dew point50°
Sat, 3169° / 63°0.01
Morning66°feels 64°
Afternoon69°feels 67°
Evening67°feels 65°
Overnight64°feels 63°
69 °
Fullerton, Saturday, 31 October
Light rain. High 69°, low 63°.
Pressure30.03 inHg
Wind18.2 mph S
Humidity38%
Visibility—
Dew point42°
Sun, 0173° / 61°0.42
Morning66°feels 65°
Afternoon72°feels 72°
Evening65°feels 65°
Overnight62°feels 61°
73 °
Fullerton, Sunday, 1 November
Rain. High 73°, low 61°.
Pressure29.74 inHg
Wind19.5 mph S
Humidity54%
Visibility—
Dew point54°
Mon, 0254° / 40°0.2
Morning42°feels 33°
Afternoon41°feels 33°
Evening45°feels 41°
Overnight44°feels 42°
54 °
Fullerton, Monday, 2 November
Light rain. High 54°, low 40°.
Pressure29.59 inHg
Wind19.6 mph W
Humidity94%
Visibility—
Dew point38°
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, IL 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.