10-day forecast for Lanark, IL: 38° to 75°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
75°
Best day: Wednesday, October 28
63° · 1.17 in
Worst day: Tuesday, November 3
Tap any day below to see morning, afternoon, evening and overnight.
Thu, 2968° / 47°0.03
Morning57°feels 57°
Afternoon66°feels 65°
Evening52°feels 50°
Overnight60°feels 59°
68 °
Lanark, Thursday, 29 October
Light rain. High 68°, low 47°.
Pressure30.15 inHg
Wind9 mph N
Humidity52%
Visibility6.2 mi
Dew point46°
Fri, 3058° / 38°0.02
Morning39°feels 33°
Afternoon58°feels 56°
Evening53°feels 52°
Overnight43°feels 40°
58 °
Lanark, Friday, 30 October
Light rain. High 58°, low 38°.
Pressure30.33 inHg
Wind6.4 mph E
Humidity61%
Visibility6.2 mi
Dew point43°
Sat, 3158° / 51°0.76
Morning51°feels 51°
Afternoon55°feels 55°
Evening53°feels 52°
Overnight52°feels 51°
58 °
Lanark, Saturday, 31 October
Heavy rain. High 58°, low 51°.
Pressure30.30 inHg
Wind6.6 mph SE
Humidity96%
Visibility3.5 mi
Dew point52°
Sun, 0166° / 47°0
Morning50°feels 47°
Afternoon66°feels 65°
Evening58°feels 58°
Overnight48°feels 47°
66 °
Lanark, Sunday, 1 November
Clear. High 66°, low 47°.
Pressure30.27 inHg
Wind7.7 mph E
Humidity64%
Visibility6.2 mi
Dew point49°
Mon, 0263° / 58°0.69
Morning59°feels 59°
Afternoon62°feels 62°
Evening62°feels 62°
Overnight62°feels 62°
63 °
Lanark, Monday, 2 November
Rain. High 63°, low 58°.
Pressure29.97 inHg
Wind19.4 mph S
Humidity81%
Visibility—
Dew point55°
Tue, 0363° / 57°1.17
Morning58°feels 57°
Afternoon60°feels 59°
Evening61°feels 61°
Overnight62°feels 62°
63 °
Lanark, Tuesday, 3 November
Rain. High 63°, low 57°.
Pressure29.97 inHg
Wind15.5 mph SE
Humidity74%
Visibility—
Dew point51°
Wed, 0463° / 60°0.54
Morning61°feels 61°
Afternoon63°feels 63°
Evening62°feels 62°
Overnight61°feels 62°
63 °
Lanark, Wednesday, 4 November
Rain. High 63°, low 60°.
Pressure29.74 inHg
Wind15.5 mph SE
Humidity90%
Visibility—
Dew point60°
Thu, 0562° / 54°0.45
Morning60°feels 60°
Afternoon59°feels 59°
Evening56°feels 56°
Overnight55°feels 55°
62 °
Lanark, Thursday, 5 November
Rain. High 62°, low 54°.
Pressure29.56 inHg
Wind10.3 mph NW
Humidity91%
Visibility—
Dew point56°
Fri, 0653° / 40°0.03
Morning47°feels 40°
Afternoon45°feels 38°
Evening43°feels 38°
Overnight42°feels 36°
53 °
Lanark, Friday, 6 November
Light rain. High 53°, low 40°.
Pressure29.94 inHg
Wind16.5 mph N
Humidity76%
Visibility—
Dew point38°
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 Lanark, 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.