Hartsburg, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Hartsburg, IL in one place.
Sunny, with a high near 91. West southwest wind 8 to 12 mph, with gusts as high as 18 mph.
Local Weather Overview
This forecast page for Hartsburg, 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 12, 2026 4:43 AM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Hartsburg, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 4:43 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Hartsburg
Tuesday looks like the warmest upcoming period in Hartsburg at 91 degrees F.
Friday Night is the coolest period ahead with temperatures near 36 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 12, 2026 4:43 AM 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 chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 68. West southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 79. North wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms likely before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 60. Northeast wind around 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 76. Chance of precipitation is 90%.
Showers and thunderstorms before 1am. Mostly cloudy, with a low around 49. Chance of precipitation is 90%.
Partly sunny, with a high near 61.
Partly cloudy, with a low around 36.
Sunny, with a high near 60.
Clear, with a low around 37.
Sunny, with a high near 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
91°F |
8 to 12 mph
WSW
|
|
Tuesday Night
Oct 13
|
Chance Showers And Thunderstorms
|
68°F |
5 mph
WSW
|
|
Wednesday
Oct 14
|
Showers And Thunderstorms
|
79°F |
7 mph
N
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
60°F |
9 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
76°F |
10 mph
SE
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
49°F |
12 to 18 mph
NW
|
|
Friday
Oct 16
|
Partly Sunny
|
61°F |
18 to 23 mph
NNW
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
36°F |
5 to 18 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
60°F |
5 mph
NE
|
|
Saturday Night
Oct 17
|
Clear
|
37°F |
2 to 6 mph
SSE
|
|
Sunday
Oct 18
|
Sunny
|
68°F |
7 to 12 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Hartsburg.