Weather Alert
Port Byron Weather Warning NWS WEATHER ALERT FOR THE PORT BYRON, IL AREA - Issued: 833 PM CST Tue Mar 3 2026 Port Byron Weather Warning

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Port Byron, IL Weather - Hour by Hour Forecast

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Port Byron, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Mist. Temperature is 36°F2°C, dew point 32°F0°C, humidity 85%. Wind direction is E at 3 mph5 km/h with visibility of 6 mi10 km. Barometric pressure is 30.17 in1021 mb.
Tonight - Mostly cloudy. Lows in the mid 30s. Northeast winds around 5 mph... Full Forecast
Wednesday - Mostly cloudy. A slight chance of rain in the morning. Highs in the lower 50s. East winds 5 to 10 mph. Chance of rain 20%... Full Forecast

Port Byron Hourly Weather

24 Hour Forecast Scroll
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Port Byron, IL Hourly Weather - Cloudy - 11:00 PM Port Byron, IL Hourly Weather - Cloudy - 12:00 AM Port Byron, IL Hourly Weather - Cloudy - 1:00 AM Port Byron, IL Hourly Weather - Cloudy - 2:00 AM Port Byron, IL Hourly Weather - Cloudy - 3:00 AM Port Byron, IL Hourly Weather - Cloudy - 4:00 AM Port Byron, IL Hourly Weather - Cloudy - 5:00 AM Port Byron, IL Hourly Weather - Cloudy - 6:00 AM Port Byron, IL Hourly Weather - Cloudy - 7:00 AM Port Byron, IL Hourly Weather - Cloudy - 8:00 AM Port Byron, IL Hourly Weather - Cloudy - 9:00 AM Port Byron, IL Hourly Weather - Cloudy - 10:00 AM Port Byron, IL Hourly Weather - Cloudy - 11:00 AM Port Byron, IL Hourly Weather - Cloudy - 12:00 PM Port Byron, IL Hourly Weather - Cloudy - 1:00 PM Port Byron, IL Hourly Weather - Cloudy - 2:00 PM Port Byron, IL Hourly Weather - Cloudy - 3:00 PM Port Byron, IL Hourly Weather - Cloudy - 4:00 PM Port Byron, IL Hourly Weather - Mostly Cloudy - 5:00 PM Port Byron, IL Hourly Weather - Mostly Cloudy - 6:00 PM Port Byron, IL Hourly Weather - Mostly Cloudy - 7:00 PM Port Byron, IL Hourly Weather - Partly Cloudy - 8:00 PM Port Byron, IL Hourly Weather - Partly Cloudy - 9:00 PM Port Byron, IL Hourly Weather - Partly Cloudy - 10:00 PM
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
45°F7°C 44°F7°C 44°F7°C 44°F7°C 44°F7°C 44°F7°C 44°F7°C 44°F7°C 45°F7°C 46°F8°C 47°F8°C 49°F9°C 51°F11°C 53°F12°C 54°F12°C 55°F13°C 56°F13°C 55°F13°C 55°F13°C 54°F12°C 53°F12°C 52°F11°C 51°F11°C 51°F11°C
Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain - - - - - - - - - -
32% 32% 84% 84% 84% 84% 84% 84% 38% 38% 38% 38% 38% 38% 6% 6% 6% 6% 6% 6% 3% 3% 3% 3%
42°F6°C 43°F6°C 43°F6°C 43°F6°C 43°F6°C 43°F6°C 43°F6°C 43°F6°C 43°F6°C 44°F7°C 44°F7°C 44°F7°C 45°F7°C 45°F7°C 45°F7°C 46°F8°C 46°F8°C 46°F8°C 46°F8°C 46°F8°C 46°F8°C 45°F7°C 45°F7°C 45°F7°C
89% 96% 96% 96% 96% 96% 96% 96% 93% 93% 89% 83% 80% 74% 72% 72% 69% 72% 72% 74% 77% 77% 80% 80%
E ENE ENE ENE ENE NE NE NE NNE NNE N SE SSW N NNW NW WNW SSW S SE SE SE ESE ESE
2 mph 2 mph 2 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 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 6 mph 6 mph 6 mph
3 mi5 km .75 mi1 km .75 mi1 km .5 mi1 km .5 mi1 km .5 mi1 km .5 mi1 km .5 mi1 km .5 mi1 km .75 mi1 km .75 mi1 km 3 mi5 km 3 mi5 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
Hour (CST)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
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Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KDVN model statistics.

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Prob Precip % = Probability of Precipitation.

Port Byron 36 Hour Forecast

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

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