Janesville, IL Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Janesville, IL in one place.
Partly sunny, with a high near 53. North northwest wind 8 to 12 mph, with gusts as high as 17 mph.
Local Weather Overview
This forecast page for Janesville, 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 4, 2026 5:56 PM CST.
The active forecast window currently covers Nov 6 to Nov 10, 2026 for Janesville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 10, 2026
- Latest sync
- Nov 4, 2026 5:56 PM CST
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Janesville
Tuesday looks like the warmest upcoming period in Janesville at 65 degrees F.
Saturday Night is the coolest period ahead with temperatures near 30 degrees F.
The strongest winds are forecast for Friday at about 8 to 12 mph NNW.
The forecast from Nov 6 through Nov 10 stays mostly dry.
Forecast Details
- Last updated
- Nov 4, 2026 5:56 PM CST
- 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
Mostly clear, with a low around 32. North northwest wind 3 to 7 mph.
Sunny, with a high near 53. North northwest wind around 6 mph.
Mostly clear, with a low around 30.
Sunny, with a high near 59.
Mostly clear, with a low around 34.
Sunny, with a high near 64.
Clear, with a low around 38.
Sunny, with a high near 65.
Mostly clear, with a low around 39.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Nov 6
|
Partly Sunny
|
53°F |
8 to 12 mph
NNW
|
|
Friday Night
Nov 6
|
Mostly Clear
|
32°F |
3 to 7 mph
NNW
|
|
Saturday
Nov 7
|
Sunny
|
53°F |
6 mph
NNW
|
|
Saturday Night
Nov 7
|
Mostly Clear
|
30°F |
2 mph
NW
|
|
Sunday
Nov 8
|
Sunny
|
59°F |
2 to 6 mph
WNW
|
|
Sunday Night
Nov 8
|
Mostly Clear
|
34°F |
2 mph
WNW
|
|
Monday
Nov 9
|
Sunny
|
64°F |
0 to 7 mph
WSW
|
|
Monday Night
Nov 9
|
Clear
|
38°F |
3 mph
WSW
|
|
Tuesday
Nov 10
|
Sunny
|
65°F |
5 mph
W
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
39°F |
2 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Janesville.