Nelson, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Nelson, IL in one place.
Mostly sunny, with a high near 80. South wind 5 to 15 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Nelson, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 21, 2026 9:42 AM CDT.
The active forecast window currently covers Apr 23 to Apr 27, 2026 for Nelson, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 23 to Apr 27, 2026
- Latest sync
- Apr 21, 2026 9:42 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Nelson
Thursday looks like the warmest upcoming period in Nelson at 80 degrees F.
Saturday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Thursday at about 5 to 15 mph S.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 21, 2026 9:42 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 73.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 48.
Mostly sunny, with a high near 67.
Partly cloudy, with a low around 46.
Mostly sunny, with a high near 68.
A chance of rain showers between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
A chance of showers and thunderstorms. Mostly cloudy, with a high near 66.
A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Mostly Sunny
|
80°F |
5 to 15 mph
S
|
|
Thursday Night
Apr 23
|
Chance Showers And Thunderstorms
|
59°F |
10 to 15 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms Likely
|
73°F |
10 mph
WSW
|
|
Friday Night
Apr 24
|
Chance Showers And Thunderstorms then Partly Cloudy
|
48°F |
5 to 10 mph
NNW
|
|
Saturday
Apr 25
|
Mostly Sunny
|
67°F |
5 to 10 mph
NNE
|
|
Saturday Night
Apr 25
|
Partly Cloudy
|
46°F |
5 to 10 mph
NE
|
|
Sunday
Apr 26
|
Mostly Sunny
|
68°F |
5 to 10 mph
ENE
|
|
Sunday Night
Apr 26
|
Chance Rain Showers
|
49°F |
10 mph
E
|
|
Monday
Apr 27
|
Chance Showers And Thunderstorms
|
66°F |
10 to 15 mph
ESE
|
|
Monday Night
Apr 27
|
Chance Showers And Thunderstorms
|
48°F |
10 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Nelson.