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Stonington, IL Weather Forecast

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Stonington, IL Weather Forecast

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Stonington IL weather - Clear - 45°F
Clear
45°F
Updated 7:28 am
Feels Like 50°F
Humidity 89%
Wind N 0 mph
Barometer  30.25 in
Dew Point 42°F
Stonington IL weather - Clear - 7°C
Clear
7°C
Updated 7:28 am
Feels Like 10°C
Humidity 89%
Wind N 0 km/h
Barometer  102.4 kPa
Dew Point 6°C
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Stonington Weather Forecast

TODAY TONIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY TUESDAY TUESDAY NIGHT WEDNESDAY
Stonington, IL Weather - Today Sunny Stonington, IL Weather - Tonight Clear Stonington, IL Weather - Friday Sunny Stonington, IL Weather - Friday Night Mostly Clear Stonington, IL Weather - Saturday Mostly Sunny Stonington, IL Weather - Saturday Night Partly Cloudy Stonington, IL Weather - Sunday Partly Cloudy Stonington, IL Weather - Sunday Night Mostly Cloudy Stonington, IL Weather - Monday Mostly Cloudy Stonington, IL Weather - Tuesday Mostly Cloudy Stonington, IL Weather - Tuesday Night Mostly Cloudy Stonington, IL Weather - Wednesday Mostly Sunny
Sunny Clear Sunny Mostly Clear Mostly Sunny Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Sunny
Hi: 75°FHi: 24°C
 Lo: 45°FLo: 7°C Hi: 75°FHi: 24°C
 Lo: 45°FLo: 7°C Hi: 75°FHi: 24°C
 Hi: 79°FHi: 26°C
Lo: 45°FLo: 7°C		 Hi: 79°FHi: 26°C
Lo: 45°FLo: 7°C		 Hi: 79°FHi: 26°C
Lo: 49°FLo: 9°C		 Hi: 79°FHi: 26°C
Lo: 49°FLo: 9°C		 Hi: 71°FHi: 22°C
Lo: 45°FLo: 7°C		 Hi: 71°FHi: 22°C
Lo: 45°FLo: 7°C		 Hi: 69°FHi: 21°C
POP = Probability of Precipitation.
Weather Outlook Updated: 637 AM CDT Thu Oct 22 2026 Stonington, IL Weather - WeatherWorld.com

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Issued: 610 AM CDT Thu Oct 22 2026

Key Messages

  • Sunny mild days and cool nights persist across central and southeast Illinois through Monday, with highs in the 70s and lows in the 40s.
  • A cold front moves across the region early next work week, though rain chances look pretty slim, with temperatures cooling a bit for middle of next week.

Discussion

... Issued at 300 AM CDT Thu Oct 22 2026

A delightful stretch of fall weather is expected to continue across central/southeast IL through at least Monday with dry conditions, fair amount of...