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Current conditions at
Tri-Township Airport (KSFY)
Lat: 42.05°NLon: 90.11°WElev: 614ft.
Fair
86°F
30°C
| Humidity | 26% |
| Wind Speed | SW 14 mph |
| Barometer | 30.03 in |
| Dewpoint | 48°F (9°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 25 May 3:35 pm CDT |
Extended Forecast for
Lanark IL
Memorial Day
High: 85 °F
Sunny
Tonight
Low: 58 °F
Clear
Tuesday
High: 86 °F
Increasing
CloudsTuesday Night
Low: 60 °F
Decreasing
CloudsWednesday
High: 86 °F
Mostly Sunny
Wednesday Night
Low: 55 °F
Mostly Clear
Thursday
High: 81 °F
Sunny
Thursday Night
Low: 51 °F
Partly Cloudy
Friday
High: 82 °F
Mostly Sunny
Detailed Forecast
Memorial Day
Sunny, with a high near 85. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 58. South wind 5 to 10 mph.
Tuesday
Increasing clouds, with a high near 86. South wind around 5 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 60. South wind around 5 mph becoming calm.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 55.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 79.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Lanark IL
42.11°N 89.83°W (Elev. 883 ft)
42.11°N 89.83°W (Elev. 883 ft)
2:51 pm CDT May 25, 2026
3pm CDT May 25, 2026-6pm CDT May 31, 2026
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