Sangamon, IL Weather Forecast
Local 7-day forecast
Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Sangamon, IL in one place.
Clear, with a low around 67. Northeast wind around 2 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: Jul 14, 2026 3:45 AM CDT.
The active forecast window currently covers Jul 14 to Jul 20, 2026 for Sangamon, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 3:45 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Sangamon
Wednesday looks like the warmest upcoming period in Sangamon at 92 degrees F.
Sunday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Saturday at about 9 to 13 mph WSW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 3:45 AM CDT
- Coverage
- 7 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
Sunny, with a high near 91. Northeast wind 0 to 6 mph.
Patchy fog after 4am. Clear, with a low around 69. East northeast wind 0 to 5 mph.
Patchy fog before 8am. Sunny, with a high near 92. Heat index values as high as 100. North northeast wind around 1 mph.
Clear, with a low around 71. Southwest wind 0 to 3 mph.
Sunny, with a high near 91. West southwest wind 1 to 6 mph.
Mostly clear, with a low around 72. Southwest wind 2 to 6 mph.
A chance of showers and thunderstorms after 7am. Sunny, with a high near 89. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 89.
A chance of showers and thunderstorms before 1am. Mostly clear, with a low around 71.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 87.
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 66.
Sunny, with a high near 85.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 14
|
Clear
|
67°F |
2 mph
NE
|
|
Tuesday
Jul 14
|
Sunny
|
91°F |
0 to 6 mph
NE
|
|
Tuesday Night
Jul 14
|
Clear then Patchy Fog
|
69°F |
0 to 5 mph
ENE
|
|
Wednesday
Jul 15
|
Patchy Fog then Sunny
|
92°F |
1 mph
NNE
|
|
Wednesday Night
Jul 15
|
Clear
|
71°F |
0 to 3 mph
SW
|
|
Thursday
Jul 16
|
Sunny
|
91°F |
1 to 6 mph
WSW
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
72°F |
2 to 6 mph
SW
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms
|
89°F |
5 to 10 mph
SW
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms then Mostly Clear
|
73°F |
8 mph
WSW
|
|
Saturday
Jul 18
|
Sunny then Chance Showers And Thunderstorms
|
89°F |
9 to 13 mph
WSW
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
71°F |
7 to 10 mph
WNW
|
|
Sunday
Jul 19
|
Sunny then Slight Chance Showers And Thunderstorms
|
87°F |
8 to 12 mph
N
|
|
Sunday Night
Jul 19
|
Slight Chance Showers And Thunderstorms
|
66°F |
6 to 10 mph
ESE
|
|
Monday
Jul 20
|
Sunny
|
85°F |
7 to 12 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sangamon.