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Smithboro Weather Warning NWS WEATHER ALERT FOR THE SMITHBORO, IL AREA - Issued: 326 AM CDT Fri Sep 4 2026 Smithboro Weather Warning

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Smithboro, IL Weather - Hour by Hour Forecast

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Smithboro, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 97°F36°C, dew point 70°F21°C, humidity 41%. Wind direction is N/A at N/A mph0 km/h with visibility of 10 mi16 km. Barometric pressure is 30.01 in1016 mb.
Rest of Today - Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 105... Full Forecast
Tonight - Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph in the evening, beco.. Full Forecast

Smithboro Hourly Weather

24 Hour Forecast Scroll
Fri, Sep 04
11:00 am
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Smithboro, IL Hourly Weather - Clear - 11:00 AM Smithboro, IL Hourly Weather - Mostly Cloudy - 12:00 PM Smithboro, IL Hourly Weather - Mostly Cloudy - 1:00 PM Smithboro, IL Hourly Weather - Mostly Cloudy - 2:00 PM Smithboro, IL Hourly Weather - Partly Cloudy - 3:00 PM Smithboro, IL Hourly Weather - Partly Cloudy - 4:00 PM Smithboro, IL Hourly Weather - Partly Cloudy - 5:00 PM Smithboro, IL Hourly Weather - Partly Cloudy - 6:00 PM Smithboro, IL Hourly Weather - Partly Cloudy - 7:00 PM Smithboro, IL Hourly Weather - Partly Cloudy - 8:00 PM Smithboro, IL Hourly Weather - Partly Cloudy - 9:00 PM Smithboro, IL Hourly Weather - Partly Cloudy - 10:00 PM Smithboro, IL Hourly Weather - Partly Cloudy - 11:00 PM Smithboro, IL Hourly Weather - Clear - 12:00 AM Smithboro, IL Hourly Weather - Clear - 1:00 AM Smithboro, IL Hourly Weather - Clear - 2:00 AM Smithboro, IL Hourly Weather - Partly Cloudy - 3:00 AM Smithboro, IL Hourly Weather - Partly Cloudy - 4:00 AM Smithboro, IL Hourly Weather - Partly Cloudy - 5:00 AM Smithboro, IL Hourly Weather - Mostly Clear - 6:00 AM Smithboro, IL Hourly Weather - Mostly Clear - 7:00 AM Smithboro, IL Hourly Weather - Mostly Clear - 8:00 AM Smithboro, IL Hourly Weather - Clear - 9:00 AM Smithboro, IL Hourly Weather - Clear - 10:00 AM
Clear Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Clear Clear Clear Partly Cloudy Partly Cloudy Partly Cloudy Mostly Clear Mostly Clear Mostly Clear Clear Clear
99°F37°C 101°F38°C 104°F40°C 104°F40°C 105°F41°C 105°F41°C 101°F38°C 98°F37°C 94°F34°C 91°F33°C 88°F31°C 85°F29°C 83°F28°C 82°F28°C 80°F27°C 79°F26°C 78°F26°C 77°F25°C 77°F25°C 78°F26°C 78°F26°C 82°F28°C 86°F30°C 90°F32°C
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0% 0% 0% 4% 4% 4% 4% 4% 4% 6% 6% 6% 6% 6% 6% 5% 5% 5% 5% 5% 5% 6% 6% 6%
71°F22°C 69°F21°C 67°F19°C 66°F19°C 66°F19°C 65°F18°C 66°F19°C 68°F20°C 69°F21°C 69°F21°C 70°F21°C 70°F21°C 70°F21°C 71°F22°C 71°F22°C 71°F22°C 71°F22°C 71°F22°C 71°F22°C 72°F22°C 72°F22°C 72°F22°C 73°F23°C 73°F23°C
41% 36% 31% 30% 29% 28% 32% 38% 44% 49% 55% 61% 65% 69% 74% 77% 79% 82% 82% 82% 82% 72% 65% 58%
SW SW SW SW SW SW S S SSE SSE S S S S SSE SW SW SW SW SW SW SSW SSW W
5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 2 mph 2 mph 2 mph 4 mph 4 mph 4 mph 3 mph 3 mph 3 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 5 mph 5 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 KSLO model statistics.

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Prob Precip % = Probability of Precipitation.

Smithboro 36 Hour Forecast

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

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