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Newton Lake, IL Weather Forecast

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Newton Lake, IL Weather Forecast

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Newton Lake IL weather - Clear - 56°F
Clear
56°F
Updated 4:43 am
Feels Like 59°F
Humidity 100%
Wind N 0 mph
Barometer  30.07 in
Dew Point 56°F
Newton Lake IL weather - Clear - 13°C
Clear
13°C
Updated 4:43 am
Feels Like 15°C
Humidity 100%
Wind N 0 km/h
Barometer  101.8 kPa
Dew Point 13°C
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Newton Lake Weather Forecast

TODAY TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SUNDAY
Newton Lake, IL Weather - Today Patchy Fog Newton Lake, IL Weather - Tonight Mostly Clear Newton Lake, IL Weather - Tuesday Mostly Sunny Newton Lake, IL Weather - Tuesday Night Partly Cloudy Newton Lake, IL Weather - Wednesday Mostly Sunny Newton Lake, IL Weather - Wednesday Night Chance Of T-Storm Newton Lake, IL Weather - Thursday Mostly Clear Newton Lake, IL Weather - Thursday Night Mostly Clear Newton Lake, IL Weather - Friday Sunny Newton Lake, IL Weather - Friday Night Mostly Clear Newton Lake, IL Weather - Saturday Partly Cloudy Newton Lake, IL Weather - Sunday Partly Cloudy
Patchy Fog Mostly Clear Mostly Sunny Partly Cloudy Mostly Sunny Chance of T-Storm Mostly Clear Mostly Clear Sunny Mostly Clear Partly Cloudy Partly Cloudy
Hi: 81°FHi: 27°C
 Lo: 59°FLo: 15°C Hi: 81°FHi: 27°C
 Lo: 61°FLo: 16°C Hi: 85°FHi: 29°C
 Lo: 65°FLo: 18°C Hi: 85°FHi: 29°C
Lo: 61°FLo: 16°C		 Hi: 85°FHi: 29°C
Lo: 61°FLo: 16°C		 Hi: 85°FHi: 29°C
 Lo: 65°FLo: 18°C Hi: 89°FHi: 32°C
Lo: 69°FLo: 21°C		 Hi: 89°FHi: 32°C
Lo: 69°FLo: 21°C
POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 337 AM CDT Mon Aug 24 2026 Newton Lake, IL Weather - WeatherWorld.com

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Newton Lake Forecast Discussion

Issued: 243 AM CDT Mon Aug 24 2026

Key Messages

  • Seasonal and mostly dry weather is expected through Tuesday.
  • The next chance for showers and storms arrives Wednesday. Some of these storms could be strong to marginally severe.

Discussion

... Issued at 243 AM CDT Mon Aug 24 2026

Upper analysis has the middle Mississippi Valley positioned under northwest flow with strong upper ridging over the southwest US and a closed low impacting the northeast US. Surface high pressure over central IL early this morning has kept skies mostly clear an...