Belmont, IL Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Belmont, IL in one place.
A slight chance of showers and thunderstorms after 11am. Mostly sunny. High near 90, with temperatures falling to around 85 in the afternoon. Heat index values as high as 100. West northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Belmont, 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: Jul 17, 2026 8:33 AM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Belmont, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 8:33 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Belmont
Saturday looks like the warmest upcoming period in Belmont at 90 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph WNW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 8:33 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 67. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny, with a high near 85. East northeast wind around 5 mph.
Partly cloudy, with a low around 66.
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87.
A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 71.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 85.
Mostly clear, with a low around 63.
Sunny, with a high near 79.
Mostly clear, with a low around 61.
Sunny, with a high near 80.
Partly cloudy, with a low around 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Slight Chance Showers And Thunderstorms
|
90°F |
10 to 15 mph
WNW
|
|
Saturday Night
Jul 18
|
Partly Cloudy
|
67°F |
5 to 10 mph
NNE
|
|
Sunday
Jul 19
|
Sunny
|
85°F |
5 mph
ENE
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
66°F |
5 mph
SE
|
|
Monday
Jul 20
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
87°F |
5 to 15 mph
SSW
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
71°F |
10 to 15 mph
SW
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms then Mostly Sunny
|
85°F |
10 to 15 mph
WNW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
63°F |
10 to 15 mph
NNW
|
|
Wednesday
Jul 22
|
Sunny
|
79°F |
10 mph
N
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
61°F |
5 to 10 mph
NNW
|
|
Thursday
Jul 23
|
Sunny
|
80°F |
5 to 10 mph
WNW
|
|
Thursday Night
Jul 23
|
Partly Cloudy
|
62°F |
0 to 10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Belmont.