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Lanark, IL Weather Forecast

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Lanark, IL Weather Forecast

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Lanark IL weather - Clear - 56°F
Clear
56°F
Updated 11:38 pm
Feels Like 51°F
Humidity 75%
Wind SSE 3 mph
Barometer  30.36 in
Dew Point 49°F
Lanark IL weather - Clear - 13°C
Clear
13°C
Updated 11:38 pm
Feels Like 11°C
Humidity 75%
Wind SSE 5 km/h
Barometer  102.8 kPa
Dew Point 9°C
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Lanark Weather Forecast

TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY THURSDAY FRIDAY FRIDAY NIGHT SATURDAY
Lanark, IL Weather - Tonight Partly Cloudy Lanark, IL Weather - Sunday Partly Sunny Lanark, IL Weather - Sunday Night Partly Cloudy Lanark, IL Weather - Monday Partly Sunny Lanark, IL Weather - Monday Night Mostly Cloudy Lanark, IL Weather - Tuesday Mostly Cloudy Lanark, IL Weather - Tuesday Night Mostly Cloudy Lanark, IL Weather - Wednesday Partly Cloudy Lanark, IL Weather - Thursday Partly Cloudy Lanark, IL Weather - Friday Mostly Cloudy Lanark, IL Weather - Friday Night Mostly Cloudy Lanark, IL Weather - Saturday Chance Of Showers
Partly Cloudy Partly Sunny Partly Cloudy Partly Sunny Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Chance of Showers
Lo: 50°FLo: 10°C Hi: 75°FHi: 24°C
 Lo: 50°FLo: 10°C Hi: 70°FHi: 21°C
 Lo: 45°FLo: 7°C Hi: 71°FHi: 22°C
Lo: 51°FLo: 11°C		 Hi: 71°FHi: 22°C
Lo: 51°FLo: 11°C		 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C		 Hi: 71°FHi: 22°C
POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 941 PM CDT Sat Oct 24 2026 Lanark, IL Weather - WeatherWorld.com

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Issued: 637 PM CDT Sat Oct 24 2026

Key Messages

  • Unseasonably mild fall weather will continue through the upcoming work week, with passing clouds and lighter winds.
  • Mostly dry conditions expected into the middle of the upcoming work week, with chances gradually increasing as we head towards the end of the week.

Aviation

/00Z TAFS THROUGH 00Z MONDAY/... Issued at 630 PM CDT Sat Oct 24 2026

Tranquil weather and prevailing VFR will continue into Sunday with light southerly winds under 10 kts, along with periods of mid to high level cloud...