Weather Alert
Lanark Weather Warning NWS WEATHER ALERT FOR THE LANARK, IL AREA - Issued: 228 AM CDT Sat Sep 5 2026 Lanark Weather Warning

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Lanark, IL Weather - Hour by Hour Forecast

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Lanark, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Overcast. Temperature is 84°F29°C, dew point 73°F23°C, humidity 69%. Wind direction is N at 10 mph16 km/h with visibility of 10 mi16 km. Barometric pressure is 29.98 in1015 mb.
Rest of Today - Sunny. Highs in the upper 80s. Northeast winds 5 to 10 mph... Full Forecast
Tonight - Mostly clear. Patchy fog after midnight. Humid with lows in the lower 60s. Northeast winds 5 to 10 mph... Full Forecast

Lanark Hourly Weather

24 Hour Forecast Scroll
Sat, Sep 05
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Lanark, IL Hourly Weather - Mostly Clear - 3:00 PM Lanark, IL Hourly Weather - Mostly Clear - 4:00 PM Lanark, IL Hourly Weather - Mostly Clear - 5:00 PM Lanark, IL Hourly Weather - Partly Cloudy - 6:00 PM Lanark, IL Hourly Weather - Partly Cloudy - 7:00 PM Lanark, IL Hourly Weather - Partly Cloudy - 8:00 PM Lanark, IL Hourly Weather - Partly Cloudy - 9:00 PM Lanark, IL Hourly Weather - Partly Cloudy - 10:00 PM Lanark, IL Hourly Weather - Partly Cloudy - 11:00 PM Lanark, IL Hourly Weather - Partly Cloudy - 12:00 AM Lanark, IL Hourly Weather - Partly Cloudy - 1:00 AM Lanark, IL Hourly Weather - Partly Cloudy - 2:00 AM Lanark, IL Hourly Weather - Partly Cloudy - 3:00 AM Lanark, IL Hourly Weather - Partly Cloudy - 4:00 AM Lanark, IL Hourly Weather - Partly Cloudy - 5:00 AM Lanark, IL Hourly Weather - Partly Cloudy - 6:00 AM Lanark, IL Hourly Weather - Partly Cloudy - 7:00 AM Lanark, IL Hourly Weather - Partly Cloudy - 8:00 AM Lanark, IL Hourly Weather - Mostly Clear - 9:00 AM Lanark, IL Hourly Weather - Mostly Clear - 10:00 AM Lanark, IL Hourly Weather - Mostly Clear - 11:00 AM Lanark, IL Hourly Weather - Mostly Clear - 12:00 PM Lanark, IL Hourly Weather - Mostly Clear - 1:00 PM Lanark, IL Hourly Weather - Mostly Clear - 2:00 PM
Mostly Clear Mostly Clear Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear
86°F30°C 87°F31°C 85°F29°C 84°F29°C 82°F28°C 78°F26°C 75°F24°C 71°F22°C 70°F21°C 68°F20°C 67°F19°C 66°F19°C 66°F19°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 68°F20°C 72°F22°C 75°F24°C 78°F26°C 80°F27°C 83°F28°C 83°F28°C
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0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 2% 2% 2% 2% 2% 2% 3% 3% 3% 3% 3% 3% 0%
71°F22°C 71°F22°C 71°F22°C 71°F22°C 71°F22°C 70°F21°C 70°F21°C 69°F21°C 68°F20°C 66°F19°C 65°F18°C 65°F18°C 64°F18°C 64°F18°C 64°F18°C 64°F18°C 64°F18°C 65°F18°C 65°F18°C 66°F19°C 65°F18°C 65°F18°C 64°F18°C 63°F17°C
61% 59% 63% 65% 69% 77% 84% 93% 93% 93% 93% 97% 93% 97% 97% 97% 97% 90% 79% 74% 64% 60% 53% 51%
NE NE NE NE NE ENE ENE ENE ENE ENE ENE ENE ENE NE NE NE NE ENE ENE E E E E E
7 mph 7 mph 7 mph 6 mph 6 mph 6 mph 3 mph 3 mph 3 mph 3 mph 3 mph 3 mph 2 mph 2 mph 2 mph 1 mph 1 mph 1 mph 5 mph 5 mph 5 mph 7 mph 7 mph 7 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 6 mi10 km 6 mi10 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 6 mi10 km 6 mi10 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (CDT)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
Humidity
Wind Direction
Wind Speed
Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KSFY model statistics.

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Prob Precip % = Probability of Precipitation.

Lanark 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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