10-day forecast for Garrison, IL: 41° to 85°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
79°
Best day: Wednesday, October 21
78° · 0.37 in
Worst day: Wednesday, October 14
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 1585° / 67°0.19
Morning71°feels 73°
Afternoon83°feels 92°
Evening75°feels 75°
Overnight68°feels 69°
85 °
Garrison, Thursday, 15 October
Rain. High 85°, low 67°.
Pressure30.00 inHg
Wind10 mph SW
Humidity66%
Visibility6.2 mi
Dew point72°
Fri, 1672° / 52°0.18
Morning56°feels 55°
Afternoon59°feels 56°
Evening52°feels 50°
Overnight67°feels 68°
72 °
Garrison, Friday, 16 October
Rain. High 72°, low 52°.
Pressure30.15 inHg
Wind19.8 mph NW
Humidity40%
Visibility6.2 mi
Dew point35°
Sat, 1759° / 45°0
Morning45°feels 40°
Afternoon58°feels 56°
Evening51°feels 48°
Overnight50°feels 45°
59 °
Garrison, Saturday, 17 October
Clear. High 59°, low 45°.
Pressure30.53 inHg
Wind9.3 mph NE
Humidity50%
Visibility6.2 mi
Dew point38°
Sun, 1863° / 41°0
Morning45°feels 42°
Afternoon60°feels 58°
Evening54°feels 52°
Overnight44°feels 42°
63 °
Garrison, Sunday, 18 October
Clear. High 63°, low 41°.
Pressure30.47 inHg
Wind6.4 mph SE
Humidity40%
Visibility—
Dew point34°
Mon, 1970° / 43°0
Morning51°feels 50°
Afternoon67°feels 65°
Evening58°feels 56°
Overnight52°feels 51°
70 °
Garrison, Monday, 19 October
Clear. High 70°, low 43°.
Pressure30.42 inHg
Wind5.1 mph SW
Humidity36%
Visibility—
Dew point37°
Tue, 2078° / 52°0
Morning62°feels 61°
Afternoon74°feels 73°
Evening69°feels 68°
Overnight66°feels 65°
78 °
Garrison, Tuesday, 20 October
Overcast. High 78°, low 52°.
Pressure30.24 inHg
Wind6.3 mph S
Humidity46%
Visibility—
Dew point50°
Wed, 2179° / 64°0
Morning66°feels 66°
Afternoon72°feels 71°
Evening71°feels 70°
Overnight65°feels 64°
79 °
Garrison, Wednesday, 21 October
Overcast. High 79°, low 64°.
Pressure30.21 inHg
Wind8 mph S
Humidity54%
Visibility—
Dew point53°
Thu, 2283° / 60°0.13
Morning67°feels 66°
Afternoon80°feels 79°
Evening64°feels 65°
Overnight62°feels 63°
83 °
Garrison, Thursday, 22 October
Rain. High 83°, low 60°.
Pressure30.06 inHg
Wind16.6 mph SW
Humidity35%
Visibility—
Dew point50°
Fri, 2377° / 60°0
Morning64°feels 64°
Afternoon73°feels 73°
Evening70°feels 69°
Overnight66°feels 65°
77 °
Garrison, Friday, 23 October
Overcast. High 77°, low 60°.
Pressure30.12 inHg
Wind9.1 mph SE
Humidity65%
Visibility—
Dew point59°
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 Garrison, 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.