Nelson, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Nelson, IL in one place.
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Heat index values as high as 98. South wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 50%.
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: Aug 10, 2026 4:44 AM CDT.
The active forecast window currently covers Aug 11 to Aug 16, 2026 for Nelson, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 11 to Aug 16, 2026
- Latest sync
- Aug 10, 2026 4:44 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Nelson
Tuesday looks like the warmest upcoming period in Nelson at 86 degrees F.
Thursday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Friday at about 5 to 10 mph E.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 10, 2026 4:44 AM CDT
- Coverage
- 6 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 slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68. East northeast wind 0 to 5 mph. Chance of precipitation is 50%.
A chance of rain showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67.
Showers and thunderstorms likely after 7am. Mostly cloudy, with a high near 79.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 79.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
A chance of showers and thunderstorms. Partly sunny, with a high near 79.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Aug 11
|
Chance Showers And Thunderstorms
|
86°F |
5 mph
S
|
|
Tuesday Night
Aug 11
|
Chance Showers And Thunderstorms
|
68°F |
0 to 5 mph
ENE
|
|
Wednesday
Aug 12
|
Chance Showers And Thunderstorms
|
86°F |
5 mph
NE
|
|
Wednesday Night
Aug 12
|
Slight Chance Showers And Thunderstorms
|
67°F |
0 to 5 mph
ENE
|
|
Thursday
Aug 13
|
Showers And Thunderstorms Likely
|
79°F |
0 to 5 mph
E
|
|
Thursday Night
Aug 13
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
62°F |
5 mph
ENE
|
|
Friday
Aug 14
|
Chance Showers And Thunderstorms
|
77°F |
5 to 10 mph
E
|
|
Friday Night
Aug 14
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
62°F |
10 mph
E
|
|
Saturday
Aug 15
|
Chance Showers And Thunderstorms
|
79°F |
10 mph
SSE
|
|
Saturday Night
Aug 15
|
Chance Showers And Thunderstorms
|
65°F |
5 to 10 mph
SW
|
|
Sunday
Aug 16
|
Chance Showers And Thunderstorms
|
79°F |
5 to 10 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Nelson.