Weather Alert
St. Augustine Weather Warning NWS WEATHER ALERT FOR THE SAINT AUGUSTINE, IL AREA - Issued: 329 PM CDT Sat Sep 5 2026 St. Augustine Weather Warning

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St. Augustine, IL Weather - Hour by Hour Forecast

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St. Augustine, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Partly Cloudy. Temperature is 91°F33°C, dew point 78°F26°C, humidity 66%. Wind direction is NW at 6 mph10 km/h with visibility of 10 mi16 km. Barometric pressure is 29.94 in1013 mb.
Tonight - Partly cloudy. Lows in the mid 60s. Northeast winds 5 to 10 mph... Full Forecast
Sunday - Mostly sunny. Highs in the mid 80s. East winds 5 to 10 mph... Full Forecast

St. Augustine Hourly Weather

24 Hour Forecast Scroll
Sat, Sep 05
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St. Augustine, IL Hourly Weather - Clear - 4:00 PM St. Augustine, IL Hourly Weather - Clear - 5:00 PM St. Augustine, IL Hourly Weather - Mostly Clear - 6:00 PM St. Augustine, IL Hourly Weather - Mostly Clear - 7:00 PM St. Augustine, IL Hourly Weather - Mostly Clear - 8:00 PM St. Augustine, IL Hourly Weather - Partly Cloudy - 9:00 PM St. Augustine, IL Hourly Weather - Partly Cloudy - 10:00 PM St. Augustine, IL Hourly Weather - Partly Cloudy - 11:00 PM St. Augustine, IL Hourly Weather - Cloudy - 12:00 AM St. Augustine, IL Hourly Weather - Cloudy - 1:00 AM St. Augustine, IL Hourly Weather - Cloudy - 2:00 AM St. Augustine, IL Hourly Weather - Mostly Cloudy - 3:00 AM St. Augustine, IL Hourly Weather - Mostly Cloudy - 4:00 AM St. Augustine, IL Hourly Weather - Mostly Cloudy - 5:00 AM St. Augustine, IL Hourly Weather - Clear - 6:00 AM St. Augustine, IL Hourly Weather - Clear - 7:00 AM St. Augustine, IL Hourly Weather - Clear - 8:00 AM St. Augustine, IL Hourly Weather - Clear - 9:00 AM St. Augustine, IL Hourly Weather - Clear - 10:00 AM St. Augustine, IL Hourly Weather - Clear - 11:00 AM St. Augustine, IL Hourly Weather - Clear - 12:00 PM St. Augustine, IL Hourly Weather - Clear - 1:00 PM St. Augustine, IL Hourly Weather - Clear - 2:00 PM St. Augustine, IL Hourly Weather - Clear - 3:00 PM
Clear Clear Mostly Clear Mostly Clear Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear
92°F33°C 90°F32°C 88°F31°C 86°F30°C 83°F28°C 79°F26°C 76°F24°C 74°F23°C 73°F23°C 71°F22°C 70°F21°C 69°F21°C 68°F20°C 67°F19°C 66°F19°C 65°F18°C 68°F20°C 72°F22°C 75°F24°C 77°F25°C 79°F26°C 81°F27°C 81°F27°C 81°F27°C
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0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 1% 1% 1% 1% 1% 1% 3% 3% 3% 3% 3% 3% 0% 0%
73°F23°C 73°F23°C 74°F23°C 74°F23°C 73°F23°C 73°F23°C 72°F22°C 71°F22°C 70°F21°C 69°F21°C 68°F20°C 67°F19°C 66°F19°C 66°F19°C 65°F18°C 65°F18°C 66°F19°C 66°F19°C 67°F19°C 66°F19°C 66°F19°C 65°F18°C 64°F18°C 63°F17°C
54% 58% 63% 68% 72% 82% 87% 90% 90% 93% 93% 93% 93% 97% 97% 100% 93% 81% 76% 69% 65% 58% 56% 54%
NNE NE NE NE NE NE ENE ENE ENE ENE ENE ENE ENE ENE ENE ENE ENE ENE ENE ENE E E E E
8 mph 8 mph 8 mph 8 mph 8 mph 7 mph 7 mph 7 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 8 mph 8 mph 8 mph 8 mph 8 mph 8 mph 9 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 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 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 KGBG model statistics.

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Prob Precip % = Probability of Precipitation.

St. Augustine 36 Hour Forecast

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

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