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Lanark, IL Hourly Weather Forecast

Next 48 Hours

Fri, Sep 25th 2026

Scattered showers early, becoming Overcast conditions later. Temps range from 55° to 66°. Light winds from the ESE at 6.5 mph, as humidity fluctuates between 69% to 88%, and an avg barometric pressure of 30.23 inHg.
Fri, Sep 25th Temp Humidity Wind (mph) Pressure (inHg) Precip.
3 PM Scattered Showers at 3 PM on Fri, Sep 25th 2026
Scattered Showers
UV: 2.7
66°F

Feels
65°F
70% 6.5 ESE 30.24 14%
4 PM Scattered Showers at 4 PM on Fri, Sep 25th 2026
Scattered Showers
UV: 1.5
66°F

Feels
64°F
69% 6.3 ESE 30.22 17%
5 PM Overcast at 5 PM on Fri, Sep 25th 2026
Overcast
UV: 0.8
65°F

Feels
64°F
72% 6 ESE 30.21 19%
6 PM Overcast at 6 PM on Fri, Sep 25th 2026
Overcast
UV: 0.2
65°F

Feels
64°F
78% 5.8 ESE 30.22 22%
7 PM Overcast at 7 PM on Fri, Sep 25th 2026
Overcast
UV: 0
63°F

Feels
61°F
81% 7.2 ESE 30.23 22%
8 PM Overcast at 8 PM on Fri, Sep 25th 2026
Overcast
UV: 0
60°F

Feels
58°F
82% 6.9 ESE 30.25 24%
9 PM Clear at 9 PM on Fri, Sep 25th 2026
Clear
UV: 0
58°F

Feels
56°F
82% 6.7 ESE 30.25 10%
10 PM Clear at 10 PM on Fri, Sep 25th 2026
Clear
UV: 0
57°F

Feels
54°F
83% 6.7 E 30.24 11%
11 PM Clear at 11 PM on Fri, Sep 25th 2026
Clear
UV: 0
55°F

Feels
53°F
88% 6.5 E 30.24 13%

Sat, Sep 26th 2026

A full day of Overcast conditions is expected. Warming trend from 51°F to 66°. Light winds, shifting from E to ESE at 6.9 mph, with humidity levels between 53% to 89%, and an avg barometric pressure of 30.17 inHg.
Sat, Sep 26th Temp Humidity Wind (mph) Pressure (inHg) Precip.
12 AM Clear at 12 AM on Sat, Sep 26th 2026
Clear
UV: 0
53°F

Feels
50°F
89% 6.9 E 30.24 15%
1 AM Overcast at 1 AM on Sat, Sep 26th 2026
Overcast
UV: 0
52°F

Feels
50°F
85% 5.8 ESE 30.24 27%
2 AM Overcast at 2 AM on Sat, Sep 26th 2026
Overcast
UV: 0
52°F

Feels
48°F
80% 6.9 E 30.23 24%
3 AM Overcast at 3 AM on Sat, Sep 26th 2026
Overcast
UV: 0
51°F

Feels
48°F
76% 6.9 E 30.22 22%
4 AM Overcast at 4 AM on Sat, Sep 26th 2026
Overcast
UV: 0
51°F

Feels
48°F
74% 7.2 E 30.21 21%
5 AM Partly Cloudy at 5 AM on Sat, Sep 26th 2026
Partly Cloudy
UV: 0
52°F

Feels
48°F
75% 7.4 E 30.21 13%
6 AM Cloudy at 6 AM on Sat, Sep 26th 2026
Cloudy
UV: 0
51°F

Feels
48°F
77% 7.2 ESE 30.21 15%
7 AM Overcast at 7 AM on Sat, Sep 26th 2026
Overcast
UV: 0
51°F

Feels
48°F
80% 6.9 ESE 30.22 24%
8 AM Overcast at 8 AM on Sat, Sep 26th 2026
Overcast
UV: 0.2
54°F

Feels
51°F
82% 5.8 ESE 30.23 25%
9 AM Overcast at 9 AM on Sat, Sep 26th 2026
Overcast
UV: 0.7
54°F

Feels
50°F
76% 6.9 ESE 30.22 22%
10 AM Overcast at 10 AM on Sat, Sep 26th 2026
Overcast
UV: 1.6
58°F

Feels
53°F
68% 7.6 ESE 30.21 17%
11 AM Overcast at 11 AM on Sat, Sep 26th 2026
Overcast
UV: 3.2
61°F

Feels
56°F
63% 8.1 SE 30.2 15%
12 PM Overcast at 12 PM on Sat, Sep 26th 2026
Overcast
UV: 4.4
63°F

Feels
58°F
59% 8.5 SE 30.19 14%
1 PM Overcast at 1 PM on Sat, Sep 26th 2026
Overcast
UV: 4.8
65°F

Feels
59°F
56% 8.9 SE 30.17 13%
2 PM Overcast at 2 PM on Sat, Sep 26th 2026
Overcast
UV: 3.6
66°F

Feels
61°F
54% 7.2 SSE 30.15 13%
3 PM Overcast at 3 PM on Sat, Sep 26th 2026
Overcast
UV: 3.2
66°F

Feels
62°F
53% 7.2 SSE 30.12 12%
4 PM Overcast at 4 PM on Sat, Sep 26th 2026
Overcast
UV: 1.5
66°F

Feels
61°F
55% 7.6 SE 30.11 12%
5 PM Overcast at 5 PM on Sat, Sep 26th 2026
Overcast
UV: 0.5
65°F

Feels
62°F
64% 5.4 SE 30.1 16%
6 PM Overcast at 6 PM on Sat, Sep 26th 2026
Overcast
UV: 0.2
65°F

Feels
64°F
70% 5.1 SE 30.1 18%
7 PM Overcast at 7 PM on Sat, Sep 26th 2026
Overcast
UV: 0
62°F

Feels
60°F
71% 5.6 SE 30.11 19%
8 PM Overcast at 8 PM on Sat, Sep 26th 2026
Overcast
UV: 0
61°F

Feels
57°F
69% 6 SE 30.11 18%
9 PM Overcast at 9 PM on Sat, Sep 26th 2026
Overcast
UV: 0
60°F

Feels
56°F
66% 5.8 ESE 30.12 16%
10 PM Overcast at 10 PM on Sat, Sep 26th 2026
Overcast
UV: 0
58°F

Feels
54°F
69% 6.9 ESE 30.12 18%
11 PM Overcast at 11 PM on Sat, Sep 26th 2026
Overcast
UV: 0
56°F

Feels
52°F
74% 7.2 ESE 30.13 21%

Sun, Sep 27th 2026

Overcast skies will dominate from morning to night. Temps range from 52° to 66°. Light winds from the ESE at 5 mph, with humidity ranging 50% to 73%, and an avg barometric pressure of 30.13 inHg.
Sun, Sep 27th Temp Humidity Wind (mph) Pressure (inHg) Precip.
12 AM Overcast at 12 AM on Sun, Sep 27th 2026
Overcast
UV: 0
56°F

Feels
52°F
73% 6.7 ESE 30.12 19%
1 AM Overcast at 1 AM on Sun, Sep 27th 2026
Overcast
UV: 0
55°F

Feels
51°F
68% 6 ESE 30.13 17%
2 AM Overcast at 2 AM on Sun, Sep 27th 2026
Overcast
UV: 0
54°F

Feels
51°F
64% 5.6 ESE 30.13 16%
3 AM Overcast at 3 AM on Sun, Sep 27th 2026
Overcast
UV: 0
54°F

Feels
51°F
65% 4.9 ESE 30.12 16%
4 AM Overcast at 4 AM on Sun, Sep 27th 2026
Overcast
UV: 0
54°F

Feels
51°F
67% 4.7 ESE 30.11 17%
5 AM Overcast at 5 AM on Sun, Sep 27th 2026
Overcast
UV: 0
54°F

Feels
51°F
67% 4.5 ESE 30.12 15%
6 AM Overcast at 6 AM on Sun, Sep 27th 2026
Overcast
UV: 0
53°F

Feels
50°F
68% 5.1 ESE 30.12 17%
7 AM Overcast at 7 AM on Sun, Sep 27th 2026
Overcast
UV: 0
52°F

Feels
50°F
69% 5.1 E 30.13 18%
8 AM Overcast at 8 AM on Sun, Sep 27th 2026
Overcast
UV: 0.1
55°F

Feels
52°F
72% 4.7 ESE 30.14 19%
9 AM Overcast at 9 AM on Sun, Sep 27th 2026
Overcast
UV: 0.4
55°F

Feels
52°F
66% 4.9 ESE 30.14 17%
10 AM Overcast at 10 AM on Sun, Sep 27th 2026
Overcast
UV: 0.6
58°F

Feels
54°F
61% 4.5 ESE 30.14 15%
11 AM Overcast at 11 AM on Sun, Sep 27th 2026
Overcast
UV: 1.7
61°F

Feels
57°F
57% 4.5 ESE 30.14 14%
12 PM Overcast at 12 PM on Sun, Sep 27th 2026
Overcast
UV: 3.4
63°F

Feels
60°F
54% 4.3 ESE 30.13 13%
1 PM Overcast at 1 PM on Sun, Sep 27th 2026
Overcast
UV: 3.9
65°F

Feels
62°F
51% 4.5 ESE 30.12 12%
2 PM Overcast at 2 PM on Sun, Sep 27th 2026
Overcast
UV: 3.9
66°F

Feels
63°F
50% 4.7 E 30.09 11%

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