Sangamon County, IL Weather Forecast
County weather hub
Showers And Thunderstorms
Compare major city weather across Sangamon County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Showers and thunderstorms. Mostly cloudy, with a high near 65. West northwest wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Sangamon County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 8 of 8 mapped cities in Sangamon County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 2:27 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Sangamon County
Tuesday looks like the warmest upcoming period in Sangamon County at 84 degrees F.
Friday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Sunday at about 14 to 22 mph S.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 2:27 PM CDT
- Coverage
- 6 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
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 44. Northeast wind around 8 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers. Mostly cloudy, with a high near 66. East southeast wind around 10 mph, with gusts as high as 17 mph. Chance of precipitation is 30%.
A slight chance of rain showers before 7pm. Mostly cloudy, with a low around 58. South southeast wind 9 to 14 mph, with gusts as high as 22 mph.
A chance of rain showers after 1pm. Mostly cloudy, with a high near 77. South wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.
A chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 63.
Showers and thunderstorms likely. Partly sunny, with a high near 79.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Showers And Thunderstorms
|
65°F |
13 mph
WNW
|
|
Friday Night
Apr 10
|
Mostly Cloudy then Slight Chance Rain Showers
|
44°F |
8 mph
NE
|
|
Saturday
Apr 11
|
Chance Rain Showers
|
66°F |
10 mph
ESE
|
|
Saturday Night
Apr 11
|
Slight Chance Rain Showers then Mostly Cloudy
|
58°F |
9 to 14 mph
SSE
|
|
Sunday
Apr 12
|
Mostly Cloudy then Chance Rain Showers
|
77°F |
14 to 22 mph
S
|
|
Sunday Night
Apr 12
|
Showers And Thunderstorms Likely
|
62°F |
15 to 18 mph
SSW
|
|
Monday
Apr 13
|
Showers And Thunderstorms Likely
|
82°F |
14 to 18 mph
SSW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
66°F |
16 mph
SSW
|
|
Tuesday
Apr 14
|
Chance Showers And Thunderstorms
|
84°F |
14 to 18 mph
SSW
|
|
Tuesday Night
Apr 14
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
63°F |
16 mph
SSW
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
79°F |
15 to 20 mph
SSW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
55°F |
10 to 14 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Sangamon County.
Coverage
Forecast coverage currently spans 8 of 8 mapped cities in Sangamon County.
Largest mapped city population in this region: 113,671.
