Altamont, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Altamont, IL in one place.
Showers and thunderstorms. Partly sunny, with a high near 86. West wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Altamont, 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 8, 2026 3:09 PM CDT.
The active forecast window currently covers Jul 10 to Jul 14, 2026 for Altamont, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 10 to Jul 14, 2026
- Latest sync
- Jul 8, 2026 3:09 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Altamont
Tuesday looks like the warmest upcoming period in Altamont at 89 degrees F.
Sunday Night is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Sunday at about 3 to 7 mph NE.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 8, 2026 3:09 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. South southwest wind 1 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 85. South southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 67.
Sunny, with a high near 87.
Mostly clear, with a low around 68.
Sunny, with a high near 89.
Mostly clear, with a low around 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 10
|
Showers And Thunderstorms
|
86°F |
6 mph
W
|
|
Friday Night
Jul 10
|
Showers And Thunderstorms Likely
|
69°F |
1 to 5 mph
SSW
|
|
Saturday
Jul 11
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
85°F |
6 mph
SSW
|
|
Saturday Night
Jul 11
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
68°F |
5 mph
N
|
|
Sunday
Jul 12
|
Chance Showers And Thunderstorms
|
85°F |
3 to 7 mph
NE
|
|
Sunday Night
Jul 12
|
Chance Showers And Thunderstorms then Mostly Clear
|
67°F |
2 to 6 mph
NE
|
|
Monday
Jul 13
|
Sunny
|
87°F |
6 mph
NE
|
|
Monday Night
Jul 13
|
Mostly Clear
|
68°F |
1 to 5 mph
NNE
|
|
Tuesday
Jul 14
|
Sunny
|
89°F |
5 mph
NNE
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
69°F |
3 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Altamont.