Sangamon, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Sangamon, IL in one place.
Mostly sunny, with a high near 84. South southeast wind 6 to 9 mph.
Local Weather Overview
This forecast page for Sangamon, 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 27, 2026 9:59 AM CDT.
The active forecast window currently covers Aug 29 to Sep 2, 2026 for Sangamon, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 2, 2026
- Latest sync
- Aug 27, 2026 9:59 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Sangamon
Monday looks like the warmest upcoming period in Sangamon at 92 degrees F.
Saturday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Sunday at about 12 to 16 mph S.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Aug 27, 2026 9:59 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
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 66. South wind around 10 mph.
Mostly sunny, with a high near 90. South wind 12 to 16 mph, with gusts as high as 24 mph.
Mostly clear, with a low around 72.
Mostly sunny, with a high near 92.
Partly cloudy, with a low around 75.
Mostly sunny, with a high near 92.
Mostly clear, with a low around 74.
Sunny, with a high near 92.
A slight chance of rain showers after 1am. Mostly clear, with a low around 73.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Sunny
|
84°F |
6 to 9 mph
SSE
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
66°F |
10 mph
S
|
|
Sunday
Aug 30
|
Mostly Sunny
|
90°F |
12 to 16 mph
S
|
|
Sunday Night
Aug 30
|
Mostly Clear
|
72°F |
13 mph
S
|
|
Monday
Aug 31
|
Mostly Sunny
|
92°F |
10 to 14 mph
SSW
|
|
Monday Night
Aug 31
|
Partly Cloudy
|
75°F |
10 mph
SSW
|
|
Tuesday
Sep 1
|
Mostly Sunny
|
92°F |
9 mph
SW
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
74°F |
7 mph
SSW
|
|
Wednesday
Sep 2
|
Sunny
|
92°F |
9 mph
SW
|
|
Wednesday Night
Sep 2
|
Mostly Clear then Slight Chance Rain Showers
|
73°F |
5 to 8 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sangamon.