Nelson, IL Weather Forecast

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Nelson, IL Weather Forecast

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Nelson IL weather  - Clear - 90°F
Clear
90°F
Updated 11:44 am
Feels Like 108°F
Humidity 59%
Wind W 7 mph
Barometer  29.97 in
Dew Point 74°F
Nelson IL weather  - Clear - 32°C
Clear
32°C
Updated 11:44 am
Feels Like 42°C
Humidity 59%
Wind W 11 km/h
Barometer  101.5 kPa
Dew Point 23°C

Nelson Weather Forecast

REST OF TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT LABOR DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT
Nelson, IL Weather - Rest Of Today Partly Cloudy Nelson, IL Weather - Tonight Clearing Nelson, IL Weather - Saturday Mostly Sunny Nelson, IL Weather - Saturday Night Partly Cloudy Nelson, IL Weather - Sunday Partly Cloudy Nelson, IL Weather - Sunday Night Partly Cloudy Nelson, IL Weather - Labor Day Partly Cloudy Nelson, IL Weather - Monday Night Partly Cloudy Nelson, IL Weather - Tuesday Partly Cloudy Nelson, IL Weather - Tuesday Night Chance Of Showers Nelson, IL Weather - Wednesday Partly Cloudy Nelson, IL Weather - Wednesday Night Chance Of Showers
Partly Cloudy Clearing Mostly Sunny Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Chance of Showers Partly Cloudy Chance of Showers
Hi: 91°FHi: 33°C
Lo: 71°FLo: 22°C Hi: 89°FHi: 32°C
Lo: 65°FLo: 18°C Hi: 81°FHi: 27°C
Lo: 61°FLo: 16°C Hi: 81°FHi: 27°C
Lo: 65°FLo: 18°C Hi: 85°FHi: 29°C
Lo: 71°FLo: 22°C Hi: 89°FHi: 32°C
Lo: 69°FLo: 21°C
POP: 20% POP: 40% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 1025 AM CDT Fri Sep 04 2026 Nelson, IL Weather - WeatherWorld.com

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Issued: 957 AM CDT Fri Sep 4 2026

Key Messages

  • Today will be another unseasonably hot and humid day with peak afternoon heat indices of 100 to 110 degrees.
  • Gradually turning cooler and less humid this weekend, though remaining seasonably warm.
  • Moderate to high swim risk expected late Saturday into early Sunday during the final weekend of beach season.

Discussion

... Issued at 301 AM CDT Fri Sep 4 2026

An unusually strong late season mid-upper level ridge of high pressure continues to dominate the weather across much of the central a...