Janesville, IA Weather Forecast
Local 7-day forecast
Rain Showers Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Janesville, IA in one place.
Rain showers likely before 3pm. Cloudy, with a high near 61. Southeast wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Janesville, IA 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 30, 2026 5:54 AM CDT.
The active forecast window currently covers Oct 31 to Nov 5, 2026 for Janesville, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 31 to Nov 5, 2026
- Latest sync
- Oct 30, 2026 5:54 AM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Janesville
Monday looks like the warmest upcoming period in Janesville at 66 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Monday at about 10 to 18 mph SE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 30, 2026 5:54 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- DMX
- Radar station
- KDMX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 49. Southeast wind around 6 mph. New rainfall amounts less than a tenth of an inch possible.
Partly sunny, with a high near 65.
A chance of rain showers after midnight. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Rain showers. Cloudy, with a high near 66. Chance of precipitation is 90%.
Showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 100%.
Rain showers. Mostly cloudy, with a high near 66. Chance of precipitation is 80%.
A chance of rain showers. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
A chance of rain showers. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.
A slight chance of rain showers. Mostly cloudy, with a low around 44.
A slight chance of rain showers. Partly sunny, with a high near 59.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Oct 31
|
Rain Showers Likely
|
61°F |
7 mph
SE
|
|
Saturday Night
Oct 31
|
Mostly Cloudy
|
49°F |
6 mph
SE
|
|
Sunday
Nov 1
|
Partly Sunny
|
65°F |
7 mph
SE
|
|
Sunday Night
Nov 1
|
Mostly Cloudy then Chance Rain Showers
|
52°F |
6 to 9 mph
SE
|
|
Monday
Nov 2
|
Rain Showers
|
66°F |
10 to 18 mph
SE
|
|
Monday Night
Nov 2
|
Showers And Thunderstorms
|
55°F |
15 to 18 mph
SSE
|
|
Tuesday
Nov 3
|
Rain Showers
|
66°F |
12 to 15 mph
S
|
|
Tuesday Night
Nov 3
|
Chance Rain Showers
|
48°F |
7 to 10 mph
W
|
|
Wednesday
Nov 4
|
Chance Rain Showers
|
60°F |
10 mph
NNW
|
|
Wednesday Night
Nov 4
|
Slight Chance Rain Showers
|
44°F |
8 mph
NW
|
|
Thursday
Nov 5
|
Slight Chance Rain Showers
|
59°F |
8 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Janesville.