Old Bay, IL Weather Forecast

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Old Bay, IL Weather Forecast

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Old Bay IL weather  - Clear - 80°F
Clear
80°F
Updated 1:22 pm
Feels Like 76°F
Humidity 32%
Wind SW 7 mph
Barometer  29.98 in
Dew Point 48°F
Old Bay IL weather  - Clear - 27°C
Clear
27°C
Updated 1:22 pm
Feels Like 25°C
Humidity 32%
Wind SW 11 km/h
Barometer  101.5 kPa
Dew Point 9°C

Old Bay Weather Forecast

THIS AFTERNOON TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT COLUMBUS DAY MONDAY NIGHT
Old Bay, IL Weather - This Afternoon Sunny Old Bay, IL Weather - Tonight Clear Old Bay, IL Weather - Thursday Sunny Old Bay, IL Weather - Thursday Night Clear Old Bay, IL Weather - Friday Sunny Old Bay, IL Weather - Friday Night Partly Cloudy Old Bay, IL Weather - Saturday Chance Of Showers Old Bay, IL Weather - Saturday Night Showers Old Bay, IL Weather - Sunday Chance Of Showers Old Bay, IL Weather - Sunday Night Partly Cloudy Old Bay, IL Weather - Columbus Day Partly Cloudy Old Bay, IL Weather - Monday Night Mostly Clear
Sunny Clear Sunny Clear Sunny Partly Cloudy Chance of Showers Showers Chance of Showers Partly Cloudy Partly Cloudy Mostly Clear
Hi: 81°FHi: 27°C
Lo: 59°FLo: 15°C Hi: 85°FHi: 29°C
Lo: 59°FLo: 15°C Hi: 89°FHi: 32°C
Lo: 61°FLo: 16°C Hi: 81°FHi: 27°C
Lo: 60°FLo: 16°C Hi: 75°FHi: 24°C
Hi: 85°FHi: 29°C
Lo: 59°FLo: 15°C
Hi: 85°FHi: 29°C
Lo: 59°FLo: 15°C
Hi: 81°FHi: 27°C
Lo: 60°FLo: 16°C
POP: 40% POP: 90% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 1232 PM CDT Wed Oct 07 2026 Old Bay, IL Weather - WeatherWorld.com

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Issued: 1217 PM CDT Wed Oct 7 2026

Key Messages

  • Dry conditions are expected through the rest of the work week along with above normal temperatures in the 80s.
  • Confidence is increasing that the remnants of a tropical system will impact our region over the weekend. Peak timing for heavy rains has trended slightly faster, primarily focused in the Saturday evening through Sunday morning time period.

Discussion

... Issued at 1259 AM CDT Wed Oct 7 2026

A weak frontal boundary is forecast to sink south towards our region today, making passa...