10-day forecast for McLean, IL: 45° 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
66° · 1.08 in
Worst day: Tuesday, November 3
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 2974° / 57°0
Morning58°feels 58°
Afternoon72°feels 72°
Evening62°feels 62°
Overnight60°feels 59°
74 °
McLean, Thursday, 29 October
Partly cloudy. High 74°, low 57°.
Pressure30.12 inHg
Wind8.1 mph W
Humidity55%
Visibility6.2 mi
Dew point55°
Fri, 3069° / 51°0.06
Morning52°feels 51°
Afternoon68°feels 67°
Evening61°feels 59°
Overnight55°feels 53°
69 °
McLean, Friday, 30 October
Light rain. High 69°, low 51°.
Pressure30.30 inHg
Wind10 mph E
Humidity45%
Visibility6.2 mi
Dew point43°
Sat, 3159° / 54°0.09
Morning54°feels 53°
Afternoon56°feels 55°
Evening56°feels 55°
Overnight57°feels 55°
59 °
McLean, Saturday, 31 October
Light rain. High 59°, low 54°.
Pressure30.33 inHg
Wind7.3 mph SE
Humidity87%
Visibility4.3 mi
Dew point51°
Sun, 0170° / 56°0.01
Morning58°feels 57°
Afternoon70°feels 69°
Evening63°feels 63°
Overnight57°feels 56°
70 °
McLean, Sunday, 1 November
Light rain. High 70°, low 56°.
Pressure30.24 inHg
Wind9 mph SE
Humidity64%
Visibility6.2 mi
Dew point55°
Mon, 0266° / 58°0.06
Morning60°feels 59°
Afternoon65°feels 65°
Evening64°feels 64°
Overnight62°feels 62°
66 °
McLean, Monday, 2 November
Light rain. High 66°, low 58°.
Pressure30.03 inHg
Wind17.9 mph S
Humidity74%
Visibility—
Dew point56°
Tue, 0366° / 62°1.08
Morning64°feels 64°
Afternoon64°feels 63°
Evening66°feels 65°
Overnight66°feels 66°
66 °
McLean, Tuesday, 3 November
Rain. High 66°, low 62°.
Pressure29.94 inHg
Wind16.4 mph S
Humidity74%
Visibility—
Dew point55°
Wed, 0467° / 61°0.37
Morning65°feels 65°
Afternoon66°feels 67°
Evening62°feels 62°
Overnight62°feels 62°
67 °
McLean, Wednesday, 4 November
Rain. High 67°, low 61°.
Pressure29.71 inHg
Wind15.7 mph SE
Humidity81%
Visibility—
Dew point61°
Thu, 0565° / 58°0.07
Morning60°feels 60°
Afternoon64°feels 63°
Evening59°feels 58°
Overnight59°feels 59°
65 °
McLean, Thursday, 5 November
Light rain. High 65°, low 58°.
Pressure29.59 inHg
Wind11 mph S
Humidity71%
Visibility—
Dew point54°
Fri, 0658° / 45°0.02
Morning52°feels 50°
Afternoon49°feels 43°
Evening46°feels 40°
Overnight47°feels 42°
58 °
McLean, Friday, 6 November
Light rain. High 58°, low 45°.
Pressure29.85 inHg
Wind15.8 mph N
Humidity82%
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.