10-day forecast for McLean, IL: 49° to 75°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
75°
Best day: Sunday, October 25
61° · 0.11 in
Worst day: Saturday, October 31
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 2674° / 51°0
Morning55°feels 54°
Afternoon74°feels 73°
Evening58°feels 57°
Overnight54°feels 53°
74 °
McLean, Monday, 26 October
Overcast. High 74°, low 51°.
Pressure30.30 inHg
Wind2.8 mph S
Humidity53%
Visibility6.2 mi
Dew point52°
Tue, 2770° / 50°0
Morning53°feels 52°
Afternoon70°feels 69°
Evening61°feels 60°
Overnight52°feels 51°
70 °
McLean, Tuesday, 27 October
Overcast. High 70°, low 50°.
Pressure30.24 inHg
Wind9.3 mph S
Humidity53%
Visibility6.2 mi
Dew point51°
Wed, 2871° / 55°0
Morning56°feels 55°
Afternoon71°feels 70°
Evening61°feels 60°
Overnight57°feels 56°
71 °
McLean, Wednesday, 28 October
Overcast. High 71°, low 55°.
Pressure30.21 inHg
Wind8.7 mph S
Humidity62%
Visibility6.2 mi
Dew point52°
Thu, 2974° / 58°0.12
Morning59°feels 59°
Afternoon73°feels 73°
Evening65°feels 65°
Overnight59°feels 58°
74 °
McLean, Thursday, 29 October
Light rain. High 74°, low 58°.
Pressure30.09 inHg
Wind9.5 mph SW
Humidity63%
Visibility6.2 mi
Dew point56°
Fri, 3070° / 55°0
Morning59°feels 59°
Afternoon67°feels 67°
Evening62°feels 61°
Overnight59°feels 58°
70 °
McLean, Friday, 30 October
Overcast. High 70°, low 55°.
Pressure30.18 inHg
Wind6.4 mph E
Humidity70%
Visibility—
Dew point56°
Sat, 3161° / 56°0.11
Morning57°feels 56°
Afternoon58°feels 57°
Evening56°feels 55°
Overnight56°feels 55°
61 °
McLean, Saturday, 31 October
Light rain. High 61°, low 56°.
Pressure30.24 inHg
Wind9.9 mph E
Humidity67%
Visibility—
Dew point47°
Sun, 0164° / 53°0.13
Morning56°feels 55°
Afternoon61°feels 61°
Evening59°feels 59°
Overnight58°feels 57°
64 °
McLean, Sunday, 1 November
Light rain. High 64°, low 53°.
Pressure30.15 inHg
Wind7.7 mph E
Humidity80%
Visibility—
Dew point54°
Mon, 0263° / 57°0.07
Morning58°feels 58°
Afternoon60°feels 60°
Evening59°feels 59°
Overnight58°feels 58°
63 °
McLean, Monday, 2 November
Light rain. High 63°, low 57°.
Pressure30.09 inHg
Wind9.2 mph E
Humidity81%
Visibility—
Dew point54°
Tue, 0367° / 51°0
Morning55°feels 54°
Afternoon64°feels 62°
Evening59°feels 58°
Overnight56°feels 55°
67 °
McLean, Tuesday, 3 November
Overcast. High 67°, low 51°.
Pressure30.09 inHg
Wind12 mph E
Humidity50%
Visibility—
Dew point44°
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 McLean, 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.