10-day forecast for McLean, IL: 38° to 77°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
77°
Best day: Wednesday, October 28
59° · 0.69 in
Worst day: Wednesday, November 4
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 2974° / 57°0
Morning58°feels 58°
Afternoon72°feels 72°
Evening62°feels 62°
Overnight59°feels 58°
74 °
McLean, Thursday, 29 October
Overcast. High 74°, low 57°.
Pressure30.12 inHg
Wind8.9 mph SW
Humidity58%
Visibility6.2 mi
Dew point55°
Fri, 3069° / 51°0.35
Morning52°feels 51°
Afternoon68°feels 67°
Evening62°feels 61°
Overnight55°feels 54°
69 °
McLean, Friday, 30 October
Heavy rain. High 69°, low 51°.
Pressure30.27 inHg
Wind9.2 mph E
Humidity47%
Visibility6.2 mi
Dew point45°
Sat, 3167° / 58°0.04
Morning58°feels 58°
Afternoon67°feels 67°
Evening61°feels 61°
Overnight59°feels 58°
67 °
McLean, Saturday, 31 October
Light rain. High 67°, low 58°.
Pressure30.27 inHg
Wind3.2 mph SW
Humidity79%
Visibility6.2 mi
Dew point59°
Sun, 0172° / 51°0
Morning55°feels 54°
Afternoon71°feels 70°
Evening62°feels 61°
Overnight55°feels 55°
72 °
McLean, Sunday, 1 November
Partly cloudy. High 72°, low 51°.
Pressure30.30 inHg
Wind5.6 mph SE
Humidity67%
Visibility6.2 mi
Dew point56°
Mon, 0267° / 56°0.06
Morning59°feels 58°
Afternoon66°feels 66°
Evening63°feels 63°
Overnight60°feels 60°
67 °
McLean, Monday, 2 November
Light rain. High 67°, low 56°.
Pressure30.09 inHg
Wind16.6 mph S
Humidity64%
Visibility—
Dew point53°
Tue, 0362° / 59°0.58
Morning61°feels 61°
Afternoon60°feels 60°
Evening59°feels 59°
Overnight59°feels 59°
62 °
McLean, Tuesday, 3 November
Rain. High 62°, low 59°.
Pressure29.88 inHg
Wind17.5 mph S
Humidity92%
Visibility—
Dew point58°
Wed, 0459° / 58°0.69
Morning58°feels 58°
Afternoon58°feels 58°
Evening58°feels 59°
Overnight59°feels 59°
59 °
McLean, Wednesday, 4 November
Rain. High 59°, low 58°.
Pressure29.71 inHg
Wind13.5 mph E
Humidity94%
Visibility—
Dew point56°
Thu, 0559° / 47°0.19
Morning58°feels 58°
Afternoon56°feels 56°
Evening53°feels 51°
Overnight50°feels 44°
59 °
McLean, Thursday, 5 November
Light rain. High 59°, low 47°.
Pressure29.41 inHg
Wind18.2 mph NW
Humidity93%
Visibility—
Dew point55°
Fri, 0649° / 38°0
Morning40°feels 33°
Afternoon46°feels 41°
Evening43°feels 38°
Overnight40°feels 35°
49 °
McLean, Friday, 6 November
Clear. High 49°, low 38°.
Pressure29.88 inHg
Wind14.4 mph W
Humidity50%
Visibility—
Dew point28°
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.