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Rainbow Lake, IL Weather Forecast

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Rainbow Lake, IL Weather Forecast

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Rainbow Lake IL weather - Clear - 54°F
Clear
54°F
Updated 11:11 pm
Feels Like 54°F
Humidity 86%
Wind N 0 mph
Barometer  30.17 in
Dew Point 50°F
Rainbow Lake IL weather - Clear - 12°C
Clear
12°C
Updated 11:11 pm
Feels Like 12°C
Humidity 86%
Wind N 0 km/h
Barometer  102.2 kPa
Dew Point 10°C
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Rainbow Lake Weather Forecast

REST OF TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY THURSDAY FRIDAY FRIDAY NIGHT SATURDAY
Rainbow Lake, IL Weather - Rest Of Tonight Mostly Clear Rainbow Lake, IL Weather - Sunday Sunny Rainbow Lake, IL Weather - Sunday Night Mostly Clear Rainbow Lake, IL Weather - Monday Sunny Rainbow Lake, IL Weather - Monday Night Clear Rainbow Lake, IL Weather - Tuesday Sunny Rainbow Lake, IL Weather - Tuesday Night Mostly Clear Rainbow Lake, IL Weather - Wednesday Mostly Clear Rainbow Lake, IL Weather - Thursday Mostly Clear Rainbow Lake, IL Weather - Friday Mostly Clear Rainbow Lake, IL Weather - Friday Night Clear Rainbow Lake, IL Weather - Saturday Clear
Mostly Clear Sunny Mostly Clear Sunny Clear Sunny Mostly Clear Mostly Clear Mostly Clear Mostly Clear Clear Clear
Lo: 49°FLo: 9°C Hi: 75°FHi: 24°C
 Lo: 45°FLo: 7°C Hi: 69°FHi: 21°C
 Lo: 45°FLo: 7°C Hi: 71°FHi: 22°C
 Hi: 75°FHi: 24°C
Lo: 51°FLo: 11°C		 Hi: 75°FHi: 24°C
Lo: 51°FLo: 11°C		 Hi: 75°FHi: 24°C
Lo: 51°FLo: 11°C		 Hi: 75°FHi: 24°C
Lo: 51°FLo: 11°C		 Hi: 80°FHi: 27°C
Lo: 55°FLo: 13°C		 Hi: 80°FHi: 27°C
Lo: 55°FLo: 13°C
POP = Probability of Precipitation.
Weather Outlook Updated: 937 PM CDT Sat Oct 03 2026 Rainbow Lake, IL Weather - WeatherWorld.com

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Rainbow Lake Forecast Discussion

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Issued: 608 PM CDT Sat Oct 3 2026

Key Messages

  • Near to slightly above average temperatures along with dry conditions will dominate central Illinois through the rest of the weekend and into early next week.

Discussion

... Issued at 135 PM CDT Sat Oct 3 2026

The latest surface analysis has a high over Michigan and frontal boundary stationary extending southwest from the mid Atlantic through the Southeast to Texas. An upper level wave will pass through the Dakotas today and through MN/WI/MI tonight. The southern extent of precipitation...