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South Beloit, IL Weather Forecast

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South Beloit, IL Weather Forecast

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South Beloit IL weather - Partly Cloudy - 78°F
Partly Cloudy
78°F
Updated 2:28 pm
Feels Like 83°F
Humidity 47%
Wind S 10 mph
Barometer  29.98 in
Dew Point 57°F
South Beloit IL weather - Partly Cloudy - 26°C
Partly Cloudy
26°C
Updated 2:28 pm
Feels Like 28°C
Humidity 47%
Wind S 16 km/h
Barometer  101.5 kPa
Dew Point 14°C
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South Beloit Weather Forecast

THIS AFTERNOON TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT
South Beloit, IL Weather - This Afternoon Mostly Sunny South Beloit, IL Weather - Tonight Partly Cloudy South Beloit, IL Weather - Saturday Partly Cloudy South Beloit, IL Weather - Saturday Night Partly Cloudy South Beloit, IL Weather - Sunday Chance Of Showers South Beloit, IL Weather - Sunday Night Chance Of Showers South Beloit, IL Weather - Monday Chance Of Showers South Beloit, IL Weather - Monday Night Chance Of T-Storm South Beloit, IL Weather - Tuesday Chance Of T-Storm South Beloit, IL Weather - Tuesday Night Chance Of T-Storm South Beloit, IL Weather - Wednesday Showers Likely South Beloit, IL Weather - Wednesday Night Showers Likely
Mostly Sunny Partly Cloudy Partly Cloudy Partly Cloudy Chance of Showers Chance of Showers Chance of Showers Chance of T-Storm Chance of T-Storm Chance of T-Storm Showers Likely Showers Likely
Hi: 79°FHi: 26°C
 Lo: 61°FLo: 16°C Hi: 81°FHi: 27°C
 Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
 Lo: 50°FLo: 10°C Hi: 75°FHi: 24°C
 Lo: 61°FLo: 16°C Hi: 80°FHi: 27°C
 Lo: 59°FLo: 15°C Hi: 71°FHi: 22°C
 Lo: 59°FLo: 15°C
POP: 30% POP: 20% POP: 40% POP: 50% POP: 70% POP: 70% POP: 70% POP: 60%
POP = Probability of Precipitation.
Weather Outlook Updated: 120 PM CDT Fri Sep 11 2026 South Beloit, IL Weather - WeatherWorld.com

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Issued: 1226 PM CDT Fri Sep 11 2026

Key Messages

  • Quieter conditions with near to slightly above normal temperatures through Saturday.
  • Waves of heavy rain producing thunderstorms possible in the general region early to mid next week.

Discussion

... Issued at 310 AM CDT Fri Sep 11 2026

Surface high pressure is centered overhead across the western Great Lakes early this morning. Light winds under this high may support patchy fog development before dawn, particularly west- southwest of the Chicago metro area. However, the main threat for ...