Portland, WI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Portland, WI in one place.
Mostly sunny, with a high near 83. East wind around 3 mph.
Local Weather Overview
This forecast page for Portland, 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: Jul 8, 2026 3:37 PM CDT.
The active forecast window currently covers Jul 10 to Jul 14, 2026 for Portland, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 10 to Jul 14, 2026
- Latest sync
- Jul 8, 2026 3:37 PM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Portland
Tuesday looks like the warmest upcoming period in Portland at 89 degrees F.
Friday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Tuesday at about 3 to 7 mph SW.
The forecast from Jul 10 through Jul 14 stays mostly dry.
Forecast Details
- Last updated
- Jul 8, 2026 3:37 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- ARX
- Radar station
- KARX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 61. Southeast wind around 1 mph.
Sunny, with a high near 84. Southeast wind around 3 mph.
Mostly clear, with a low around 63. Southeast wind around 2 mph.
Sunny, with a high near 86. South wind around 3 mph.
Clear, with a low around 64. South wind around 2 mph.
Sunny, with a high near 88. Southwest wind around 5 mph.
Mostly clear, with a low around 66. Southwest wind around 3 mph.
Sunny, with a high near 89. Southwest wind 3 to 7 mph.
Mostly clear, with a low around 68. Southwest wind around 6 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 10
|
Mostly Sunny
|
83°F |
3 mph
E
|
|
Friday Night
Jul 10
|
Partly Cloudy
|
61°F |
1 mph
SE
|
|
Saturday
Jul 11
|
Sunny
|
84°F |
3 mph
SE
|
|
Saturday Night
Jul 11
|
Mostly Clear
|
63°F |
2 mph
SE
|
|
Sunday
Jul 12
|
Sunny
|
86°F |
3 mph
S
|
|
Sunday Night
Jul 12
|
Clear
|
64°F |
2 mph
S
|
|
Monday
Jul 13
|
Sunny
|
88°F |
5 mph
SW
|
|
Monday Night
Jul 13
|
Mostly Clear
|
66°F |
3 mph
SW
|
|
Tuesday
Jul 14
|
Sunny
|
89°F |
3 to 7 mph
SW
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
68°F |
6 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portland.