Lake Nelson, IL Weather Forecast

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Lake Nelson, IL Weather Forecast

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Lake Nelson IL weather  - Sunny - 82°F
Sunny
82°F
Updated 2:46 pm
Feels Like 67°F
Humidity 34%
Wind S 14 mph
Barometer  29.9 in
Dew Point 51°F
Lake Nelson IL weather  - Sunny - 28°C
Sunny
28°C
Updated 2:46 pm
Feels Like 19°C
Humidity 34%
Wind S 23 km/h
Barometer  101.2 kPa
Dew Point 11°C

Lake Nelson Weather Forecast

THIS AFTERNOON TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SUNDAY SUNDAY NIGHT MONDAY
Lake Nelson, IL Weather - This Afternoon Partly Sunny Lake Nelson, IL Weather - Tonight Chance Of T-Storm Lake Nelson, IL Weather - Wednesday Showers Lake Nelson, IL Weather - Wednesday Night Chance Of Showers Lake Nelson, IL Weather - Thursday Chance Of T-Storm Lake Nelson, IL Weather - Thursday Night Showers Lake Nelson, IL Weather - Friday Clearing Lake Nelson, IL Weather - Friday Night Mostly Clear Lake Nelson, IL Weather - Saturday Mostly Clear Lake Nelson, IL Weather - Sunday Mostly Clear Lake Nelson, IL Weather - Sunday Night Clear Lake Nelson, IL Weather - Monday Sunny
Partly Sunny Chance of T-Storm Showers Chance of Showers Chance of T-Storm Showers Clearing Mostly Clear Mostly Clear Mostly Clear Clear Sunny
Hi: 79°FHi: 26°C
Lo: 65°FLo: 18°C Hi: 71°FHi: 22°C
Lo: 65°FLo: 18°C Hi: 71°FHi: 22°C
Lo: 59°FLo: 15°C Hi: 69°FHi: 21°C
Hi: 69°FHi: 21°C
Lo: 50°FLo: 10°C
Hi: 69°FHi: 21°C
Lo: 50°FLo: 10°C
Hi: 69°FHi: 21°C
Lo: 50°FLo: 10°C
Lo: 49°FLo: 9°C Hi: 65°FHi: 18°C
POP: 70% POP: 100% POP: 70% POP: 100% POP: 100%
POP = Probability of Precipitation.
Weather Outlook Updated: 126 PM CDT Tue Sep 29 2026 Lake Nelson, IL Weather - WeatherWorld.com

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Issued: 203 PM CDT Tue Sep 29 2026

Key Messages

  • A prolonged period of wet weather will be seen through late week in the form of three rounds of heavy rain. In between each round, spotty showers and potentially drizzle will be seen.
  • Given the long duration of the rain, rises on area rivers will occur. The probability of a flood watch being needed at some point over the next 72 hours is around 30 percent.
  • A drier and cooler weather pattern will set up this weekend and into early next week.

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/18Z TAFS THROUGH 18Z WEDNESDAY/... ...