Sangamon, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Sangamon, IL in one place.
Sunny, with a high near 91. West southwest wind around 13 mph, with gusts as high as 18 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: Oct 13, 2026 10:53 AM CDT.
The active forecast window currently covers Oct 13 to Oct 19, 2026 for Sangamon, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 10:53 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Sangamon
Today looks like the warmest upcoming period in Sangamon at 91 degrees F.
Friday Night is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Friday at about 18 to 23 mph NNW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 10:53 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
A chance of showers and thunderstorms between midnight and 4am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 69. West southwest wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 76. North northeast wind 5 to 8 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 60. Northeast wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers before 7am, then showers and thunderstorms. Mostly cloudy, with a high near 76. South southeast wind around 12 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am. Mostly cloudy, with a low around 46. West northwest wind 12 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly sunny, with a high near 59. North northwest wind 18 to 23 mph, with gusts as high as 33 mph.
Areas of frost after 5am. Mostly clear, with a low around 35.
Areas of frost before 8am. Sunny, with a high near 61.
Clear, with a low around 35.
Sunny, with a high near 69.
Partly cloudy, with a low around 43.
Mostly sunny, with a high near 74.
Partly cloudy, with a low around 48.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 13
|
Sunny
|
91°F |
13 mph
WSW
|
|
Tonight
Oct 13
|
Partly Cloudy then Chance Showers And Thunderstorms
|
69°F |
8 mph
WSW
|
|
Wednesday
Oct 14
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
76°F |
5 to 8 mph
NNE
|
|
Wednesday Night
Oct 14
|
Chance Showers And Thunderstorms
|
60°F |
10 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
76°F |
12 mph
SSE
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
46°F |
12 to 18 mph
WNW
|
|
Friday
Oct 16
|
Mostly Sunny
|
59°F |
18 to 23 mph
NNW
|
|
Friday Night
Oct 16
|
Mostly Clear then Areas Of Frost
|
35°F |
5 to 17 mph
N
|
|
Saturday
Oct 17
|
Areas Of Frost then Sunny
|
61°F |
5 mph
ENE
|
|
Saturday Night
Oct 17
|
Clear
|
35°F |
6 mph
SSE
|
|
Sunday
Oct 18
|
Sunny
|
69°F |
6 to 10 mph
S
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
43°F |
9 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
74°F |
8 mph
S
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
48°F |
3 to 7 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sangamon.