10-day forecast for Grantfork, IL: 42° to 80°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
80°
Best day: Saturday, October 24
60°
Worst day: Friday, October 16
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1760° / 42°0
Morning43°feels 39°
Afternoon60°feels 57°
Evening52°feels 50°
Overnight47°feels 42°
60 °
Grantfork, Saturday, 17 October
Clear. High 60°, low 42°.
Pressure30.56 inHg
Wind2.3 mph NE
Humidity46%
Visibility6.2 mi
Dew point35°
Sun, 1864° / 42°0
Morning44°feels 40°
Afternoon63°feels 61°
Evening53°feels 51°
Overnight45°feels 43°
64 °
Grantfork, Sunday, 18 October
Clear. High 64°, low 42°.
Pressure30.50 inHg
Wind7.5 mph S
Humidity37%
Visibility6.2 mi
Dew point34°
Mon, 1968° / 43°0
Morning45°feels 43°
Afternoon68°feels 66°
Evening56°feels 55°
Overnight47°feels 45°
68 °
Grantfork, Monday, 19 October
Clear. High 68°, low 43°.
Pressure30.39 inHg
Wind3.9 mph S
Humidity42%
Visibility6.2 mi
Dew point41°
Tue, 2070° / 45°0
Morning50°feels 49°
Afternoon70°feels 68°
Evening61°feels 60°
Overnight49°feels 49°
70 °
Grantfork, Tuesday, 20 October
Clear. High 70°, low 45°.
Pressure30.36 inHg
Wind2.7 mph SE
Humidity41%
Visibility6.2 mi
Dew point42°
Wed, 2172° / 48°0.01
Morning55°feels 54°
Afternoon69°feels 68°
Evening60°feels 59°
Overnight55°feels 54°
72 °
Grantfork, Wednesday, 21 October
Light rain. High 72°, low 48°.
Pressure30.27 inHg
Wind4.1 mph SE
Humidity38%
Visibility—
Dew point41°
Thu, 2276° / 50°0
Morning57°feels 55°
Afternoon72°feels 70°
Evening65°feels 62°
Overnight60°feels 57°
76 °
Grantfork, Thursday, 22 October
Clear. High 76°, low 50°.
Pressure30.18 inHg
Wind5.3 mph SE
Humidity34%
Visibility—
Dew point40°
Fri, 2377° / 55°0
Morning61°feels 59°
Afternoon74°feels 73°
Evening66°feels 64°
Overnight61°feels 59°
77 °
Grantfork, Friday, 23 October
Overcast. High 77°, low 55°.
Pressure30.18 inHg
Wind6.6 mph SE
Humidity28%
Visibility—
Dew point38°
Sat, 2480° / 57°0
Morning63°feels 61°
Afternoon76°feels 75°
Evening67°feels 65°
Overnight62°feels 60°
80 °
Grantfork, Saturday, 24 October
Overcast. High 80°, low 57°.
Pressure30.24 inHg
Wind7.4 mph SE
Humidity25%
Visibility—
Dew point37°
Sun, 2579° / 58°0
Morning64°feels 62°
Afternoon77°feels 76°
Evening71°feels 69°
Overnight65°feels 64°
79 °
Grantfork, Sunday, 25 October
Overcast. High 79°, low 58°.
Pressure30.18 inHg
Wind9.6 mph S
Humidity34%
Visibility—
Dew point45°
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 Grantfork, 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.