Harpster, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Harpster, IL in one place.
Mostly sunny, with a high near 50. North northwest wind 10 to 16 mph, with gusts as high as 24 mph.
Local Weather Overview
This forecast page for Harpster, 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: Nov 5, 2026 4:35 AM CST.
The active forecast window currently covers Nov 6 to Nov 11, 2026 for Harpster, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 11, 2026
- Latest sync
- Nov 5, 2026 4:35 AM CST
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Harpster
Tuesday looks like the warmest upcoming period in Harpster at 66 degrees F.
Friday Night is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Friday at about 10 to 16 mph NNW.
The forecast from Nov 6 through Nov 11 stays mostly dry.
Forecast Details
- Last updated
- Nov 5, 2026 4:35 AM CST
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 29. North northwest wind 3 to 9 mph.
Sunny, with a high near 53. Northwest wind around 6 mph.
Mostly clear, with a low around 30. West wind around 5 mph.
Sunny, with a high near 60.
Mostly clear, with a low around 33.
Sunny, with a high near 64.
Clear, with a low around 39.
Sunny, with a high near 66.
Mostly clear, with a low around 36.
Mostly sunny, with a high near 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Nov 6
|
Mostly Sunny
|
50°F |
10 to 16 mph
NNW
|
|
Friday Night
Nov 6
|
Mostly Clear
|
29°F |
3 to 9 mph
NNW
|
|
Saturday
Nov 7
|
Sunny
|
53°F |
6 mph
NW
|
|
Saturday Night
Nov 7
|
Mostly Clear
|
30°F |
5 mph
W
|
|
Sunday
Nov 8
|
Sunny
|
60°F |
5 to 9 mph
W
|
|
Sunday Night
Nov 8
|
Mostly Clear
|
33°F |
2 to 6 mph
WNW
|
|
Monday
Nov 9
|
Sunny
|
64°F |
2 to 10 mph
SSW
|
|
Monday Night
Nov 9
|
Clear
|
39°F |
6 to 9 mph
SW
|
|
Tuesday
Nov 10
|
Sunny
|
66°F |
6 mph
W
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
36°F |
5 mph
NW
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
62°F |
2 to 7 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harpster.