Sangamon County, IL Weather Forecast
County weather hub
Sunny
Compare major city weather across Sangamon County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 81. South wind 9 to 20 mph, with gusts as high as 30 mph.
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 23 to Apr 28, 2026
- Latest sync
- Apr 21, 2026 10:05 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Sangamon County
Thursday looks like the warmest upcoming period in Sangamon County at 81 degrees F.
Saturday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Thursday at about 9 to 20 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 21, 2026 10:05 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
Showers and thunderstorms likely after 1am. Mostly cloudy, with a low around 62. South wind 14 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Northwest wind 6 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 74.
Partly cloudy, with a low around 50.
Mostly sunny, with a high near 76.
A chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Mostly cloudy, with a high near 75.
Showers and thunderstorms likely. Mostly cloudy, with a low around 50.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Sunny
|
81°F |
9 to 20 mph
S
|
|
Thursday Night
Apr 23
|
Mostly Cloudy then Showers And Thunderstorms Likely
|
62°F |
14 to 20 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms Likely
|
76°F |
14 mph
SW
|
|
Friday Night
Apr 24
|
Chance Showers And Thunderstorms
|
52°F |
6 to 9 mph
NW
|
|
Saturday
Apr 25
|
Slight Chance Rain Showers then Mostly Sunny
|
74°F |
10 mph
NNE
|
|
Saturday Night
Apr 25
|
Partly Cloudy
|
50°F |
8 mph
NE
|
|
Sunday
Apr 26
|
Mostly Sunny
|
76°F |
8 to 14 mph
E
|
|
Sunday Night
Apr 26
|
Chance Showers And Thunderstorms
|
57°F |
13 to 18 mph
ESE
|
|
Monday
Apr 27
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
75°F |
18 mph
SSE
|
|
Monday Night
Apr 27
|
Showers And Thunderstorms Likely
|
50°F |
13 to 16 mph
WSW
|
|
Tuesday
Apr 28
|
Slight Chance Rain Showers then Mostly Sunny
|
68°F |
14 mph
W
|
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.
