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Fairfield Weather Warning NWS WEATHER ALERT FOR THE FAIRFIELD, IL AREA - Issued: 1239 AM CDT Sat Sep 5 2026 Fairfield Weather Warning

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Fairfield, IL Weather - Hour by Hour Forecast

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Fairfield, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 77°F25°C, dew point 71°F22°C, humidity 81%. Wind direction is N at 0 mph0 km/h with visibility of 10 mi16 km. Barometric pressure is 29.95 in1014 mb.
Tonight - Mostly clear. Lows in the mid 70s. Southwest winds around 5 mph this evening, becoming light and variable... Full Forecast
Saturday - Sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Hot with highs around 100. Northwest winds arou.. Full Forecast

Fairfield Hourly Weather

24 Hour Forecast Scroll
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Fairfield, IL Hourly Weather - Partly Cloudy - 12:00 AM Fairfield, IL Hourly Weather - Partly Cloudy - 1:00 AM Fairfield, IL Hourly Weather - Partly Cloudy - 2:00 AM Fairfield, IL Hourly Weather - Partly Cloudy - 3:00 AM Fairfield, IL Hourly Weather - Partly Cloudy - 4:00 AM Fairfield, IL Hourly Weather - Partly Cloudy - 5:00 AM Fairfield, IL Hourly Weather - Clear - 6:00 AM Fairfield, IL Hourly Weather - Clear - 7:00 AM Fairfield, IL Hourly Weather - Clear - 8:00 AM Fairfield, IL Hourly Weather - Clear - 9:00 AM Fairfield, IL Hourly Weather - Clear - 10:00 AM Fairfield, IL Hourly Weather - Clear - 11:00 AM Fairfield, IL Hourly Weather - Clear - 12:00 PM Fairfield, IL Hourly Weather - Clear - 1:00 PM Fairfield, IL Hourly Weather - Clear - 2:00 PM Fairfield, IL Hourly Weather - Clear - 3:00 PM Fairfield, IL Hourly Weather - Clear - 4:00 PM Fairfield, IL Hourly Weather - Clear - 5:00 PM Fairfield, IL Hourly Weather - Clear - 6:00 PM Fairfield, IL Hourly Weather - Clear - 7:00 PM Fairfield, IL Hourly Weather - Clear - 8:00 PM Fairfield, IL Hourly Weather - Clear - 9:00 PM Fairfield, IL Hourly Weather - Clear - 10:00 PM Fairfield, IL Hourly Weather - Clear - 11:00 PM
Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear
74°F23°C 73°F23°C 72°F22°C 72°F22°C 71°F22°C 71°F22°C 71°F22°C 71°F22°C 73°F23°C 75°F24°C 77°F25°C 79°F26°C 82°F28°C 84°F29°C 85°F29°C 86°F30°C 87°F31°C 84°F29°C 82°F28°C 79°F26°C 76°F24°C 73°F23°C 70°F21°C 69°F21°C
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18% 18% 1% 1% 1% 1% 1% 1% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
70°F21°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 68°F20°C 68°F20°C 66°F19°C 65°F18°C 63°F17°C 62°F17°C 60°F16°C 59°F15°C 59°F15°C 60°F16°C 60°F16°C 60°F16°C 60°F16°C 60°F16°C 60°F16°C
87% 90% 93% 90% 93% 93% 93% 93% 87% 79% 74% 65% 57% 49% 46% 42% 39% 43% 47% 52% 58% 64% 71% 73%
N NNE NNE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE NE
2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 3 mph 3 mph 3 mph 5 mph 5 mph 5 mph 6 mph 6 mph 6 mph 6 mph 6 mph 6 mph 3 mph 3 mph 3 mph 3 mph 3 mph 3 mph
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 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
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POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KFWC model statistics.

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Prob Precip % = Probability of Precipitation.

Fairfield 36 Hour Forecast

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

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