Weather Alert
Lerna Weather Warning NWS WEATHER ALERT FOR THE LERNA, IL AREA - Issued: 608 AM CDT Sat Sep 5 2026 Lerna Weather Warning

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Lerna, IL Weather - Hour by Hour Forecast

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Lerna, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Lightning Observed. Temperature is 97°F36°C, dew point 71°F22°C, humidity 43%. Wind direction is NNW at 10 mph16 km/h with visibility of 10 mi16 km. Barometric pressure is 29.91 in1012 mb.
Today - Sunny, hot. Near steady temperature in the mid 90s. Northwest winds 5 to 10 mph. Heat index values up to 105... Full Forecast
Tonight - Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 60s. Northeast winds 5 to 10 mph... Full Forecast

Lerna Hourly Weather

24 Hour Forecast Scroll
Sat, Sep 05
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Midnight
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Noon
Sun, Sep 06
1:00 pm
Lerna, IL Hourly Weather - Clear - 2:00 PM Lerna, IL Hourly Weather - Mostly Clear - 3:00 PM Lerna, IL Hourly Weather - Mostly Clear - 4:00 PM Lerna, IL Hourly Weather - Mostly Clear - 5:00 PM Lerna, IL Hourly Weather - Clear - 6:00 PM Lerna, IL Hourly Weather - Clear - 7:00 PM Lerna, IL Hourly Weather - Clear - 8:00 PM Lerna, IL Hourly Weather - Mostly Clear - 9:00 PM Lerna, IL Hourly Weather - Mostly Clear - 10:00 PM Lerna, IL Hourly Weather - Mostly Clear - 11:00 PM Lerna, IL Hourly Weather - Mostly Cloudy - 12:00 AM Lerna, IL Hourly Weather - Mostly Cloudy - 1:00 AM Lerna, IL Hourly Weather - Mostly Cloudy - 2:00 AM Lerna, IL Hourly Weather - Mostly Cloudy - 3:00 AM Lerna, IL Hourly Weather - Mostly Cloudy - 4:00 AM Lerna, IL Hourly Weather - Mostly Cloudy - 5:00 AM Lerna, IL Hourly Weather - Clear - 6:00 AM Lerna, IL Hourly Weather - Clear - 7:00 AM Lerna, IL Hourly Weather - Clear - 8:00 AM Lerna, IL Hourly Weather - Clear - 9:00 AM Lerna, IL Hourly Weather - Clear - 10:00 AM Lerna, IL Hourly Weather - Clear - 11:00 AM Lerna, IL Hourly Weather - Clear - 12:00 PM Lerna, IL Hourly Weather - Clear - 1:00 PM
Clear Mostly Clear Mostly Clear Mostly Clear Clear Clear Clear Mostly Clear Mostly Clear Mostly Clear Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Clear Clear Clear Clear Clear Clear Clear Clear
97°F36°C 97°F36°C 97°F36°C 94°F34°C 90°F32°C 87°F31°C 84°F29°C 82°F28°C 79°F26°C 77°F25°C 75°F24°C 73°F23°C 72°F22°C 70°F21°C 69°F21°C 68°F20°C 68°F20°C 67°F19°C 70°F21°C 72°F22°C 75°F24°C 77°F25°C 80°F27°C 82°F28°C
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9% 9% 9% 9% 9% 9% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1%
69°F21°C 68°F20°C 68°F20°C 69°F21°C 69°F21°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 68°F20°C 67°F19°C 66°F19°C 65°F18°C 64°F18°C 64°F18°C 63°F17°C 63°F17°C 64°F18°C 64°F18°C 63°F17°C 62°F17°C 61°F16°C
41% 39% 39% 44% 50% 57% 63% 67% 74% 76% 82% 84% 84% 87% 87% 87% 87% 87% 79% 76% 69% 62% 54% 49%
NW NNW N SSW SE N NNE NE NE NE NE NE NE NNE NNE NNE NE NE NE ENE ENE ENE ENE NE
8 mph 10 mph 10 mph 10 mph 9 mph 9 mph 9 mph 6 mph 6 mph 6 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 7 mph 7 mph 7 mph 12 mph 12 mph 12 mph 13 mph 13 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 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 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 KMTO model statistics.

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Prob Precip % = Probability of Precipitation.

Lerna 36 Hour Forecast

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

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