Weather Alert
St. Charles Weather Warning NWS WEATHER ALERT FOR THE SAINT CHARLES, IL AREA - Issued: 145 PM CDT Sat Oct 17 2026 St. Charles Weather Warning

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St. Charles, IL Weather - Hour by Hour Forecast

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St. Charles, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 49°F9°C, dew point 36°F2°C, humidity 60%. Wind direction is SW at 6 mph10 km/h with visibility of 10 mi16 km. Barometric pressure is 30.44 in1031 mb.
Late Today - Sunny. Temperatures in the mid 50s. Southwest winds around 10 mph... Full Forecast
Tonight - Clear. Patchy frost after midnight. Lows in the mid 30s. Southwest winds 5 to 10 mph... Full Forecast

St. Charles Hourly Weather

24 Hour Forecast Scroll
Sat, Oct 17
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St. Charles, IL Hourly Weather - Clear - 7:00 PM St. Charles, IL Hourly Weather - Clear - 8:00 PM St. Charles, IL Hourly Weather - Clear - 9:00 PM St. Charles, IL Hourly Weather - Clear - 10:00 PM St. Charles, IL Hourly Weather - Clear - 11:00 PM St. Charles, IL Hourly Weather - Clear - 12:00 AM St. Charles, IL Hourly Weather - Clear - 1:00 AM St. Charles, IL Hourly Weather - Clear - 2:00 AM St. Charles, IL Hourly Weather - Clear - 3:00 AM St. Charles, IL Hourly Weather - Clear - 4:00 AM St. Charles, IL Hourly Weather - Clear - 5:00 AM St. Charles, IL Hourly Weather - Clear - 6:00 AM St. Charles, IL Hourly Weather - Clear - 7:00 AM St. Charles, IL Hourly Weather - Clear - 8:00 AM St. Charles, IL Hourly Weather - Clear - 9:00 AM St. Charles, IL Hourly Weather - Clear - 10:00 AM St. Charles, IL Hourly Weather - Clear - 11:00 AM St. Charles, IL Hourly Weather - Clear - 12:00 PM St. Charles, IL Hourly Weather - Clear - 1:00 PM St. Charles, IL Hourly Weather - Clear - 2:00 PM St. Charles, IL Hourly Weather - Clear - 3:00 PM St. Charles, IL Hourly Weather - Clear - 4:00 PM St. Charles, IL Hourly Weather - Clear - 5:00 PM St. Charles, IL Hourly Weather - Clear - 6:00 PM
Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear
51°F11°C 49°F9°C 48°F9°C 46°F8°C 45°F7°C 43°F6°C 42°F6°C 41°F5°C 41°F5°C 40°F4°C 39°F4°C 39°F4°C 38°F3°C 44°F7°C 49°F9°C 55°F13°C 58°F14°C 61°F16°C 64°F18°C 65°F18°C 66°F19°C 67°F19°C 64°F18°C 62°F17°C
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0% 0% 0% 0% 0% 0% 0% 2% 2% 2% 2% 2% 2% 1% 1% 1% 1% 1% 1% 2% 2% 2% 2% 2%
33°F1°C 33°F1°C 34°F1°C 34°F1°C 34°F1°C 33°F1°C 33°F1°C 33°F1°C 33°F1°C 33°F1°C 33°F1°C 32°F0°C 32°F0°C 34°F1°C 36°F2°C 38°F3°C 38°F3°C 38°F3°C 38°F3°C 38°F3°C 37°F3°C 37°F3°C 37°F3°C 38°F3°C
50% 54% 58% 63% 65% 68% 70% 73% 73% 76% 79% 76% 79% 68% 61% 53% 47% 42% 38% 37% 34% 33% 37% 41%
S S S S S S S S S S S SSE SSE SSE SSE SSE SSE SSE SSE SSE SSE SSE S SSE
7 mph 7 mph 6 mph 6 mph 6 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 5 mph 5 mph 5 mph 6 mph 6 mph 6 mph 5 mph 5 mph 5 mph 3 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
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Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KDPA model statistics.

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Prob Precip % = Probability of Precipitation.

St. Charles 36 Hour Forecast

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

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