Arnold, WI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Arnold, WI in one place.
Mostly sunny, with a high near 67. West southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Local Weather Overview
This forecast page for Arnold, WI 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: Sep 14, 2026 6:48 PM CDT.
The active forecast window currently covers Sep 15 to Sep 20, 2026 for Arnold, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 20, 2026
- Latest sync
- Sep 14, 2026 6:48 PM CDT
- Forecast office
- MPX
- Source
- NOAA / NWS
Daily Outlook
This Week in Arnold
Thursday looks like the warmest upcoming period in Arnold at 73 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 43 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 15 mph WSW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 6:48 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- MPX
- Radar station
- KARX
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 43. Northwest wind 0 to 10 mph.
Partly sunny, with a high near 71. East southeast wind 0 to 5 mph.
A chance of rain showers between 7pm and 1am. Mostly cloudy, with a low around 53. Southeast wind around 0 mph. Chance of precipitation is 50%.
Partly sunny, with a high near 73. North northeast wind around 0 mph.
A chance of rain showers after 1am. Mostly cloudy, with a low around 53. East northeast wind around 0 mph. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 69. East southeast wind around 5 mph. Chance of precipitation is 70%.
Showers and thunderstorms. Mostly cloudy, with a low around 57. Southeast wind around 5 mph. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a high near 71. North northwest wind 5 to 10 mph. Chance of precipitation is 80%.
A chance of rain showers. Mostly cloudy, with a low around 52. Northeast wind around 5 mph. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 68. East northeast wind around 5 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. East northeast wind 0 to 5 mph. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Sep 15
|
Mostly Sunny
|
67°F |
10 to 15 mph
WSW
|
|
Tuesday Night
Sep 15
|
Mostly Clear
|
43°F |
0 to 10 mph
NW
|
|
Wednesday
Sep 16
|
Partly Sunny
|
71°F |
0 to 5 mph
ESE
|
|
Wednesday Night
Sep 16
|
Chance Rain Showers
|
53°F |
0 mph
|
|
Thursday
Sep 17
|
Partly Sunny
|
73°F |
0 mph
|
|
Thursday Night
Sep 17
|
Mostly Cloudy then Chance Rain Showers
|
53°F |
0 mph
|
|
Friday
Sep 18
|
Showers And Thunderstorms Likely
|
69°F |
5 mph
ESE
|
|
Friday Night
Sep 18
|
Showers And Thunderstorms
|
57°F |
5 mph
SE
|
|
Saturday
Sep 19
|
Showers And Thunderstorms
|
71°F |
5 to 10 mph
NNW
|
|
Saturday Night
Sep 19
|
Chance Rain Showers
|
52°F |
5 mph
NE
|
|
Sunday
Sep 20
|
Chance Rain Showers
|
68°F |
5 mph
ENE
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
49°F |
0 to 5 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Arnold.