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 51. Northwest wind 6 to 9 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: Apr 9, 2026 6:18 PM CDT.
The active forecast window currently covers Apr 10 to Apr 16, 2026 for Portland, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 16, 2026
- Latest sync
- Apr 9, 2026 6:18 PM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Portland
Monday looks like the warmest upcoming period in Portland at 77 degrees F.
Friday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Sunday at about 14 to 21 mph S.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 6:18 PM CDT
- Coverage
- 7 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
Mostly clear, with a low around 31. East wind 1 to 5 mph.
A chance of rain showers between 1pm and 4pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 57. Southeast wind 1 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a low around 48. South wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 71. South wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a low around 60. Southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 77. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 57. South wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 74. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 49. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Rain showers likely. Partly sunny, with a high near 63. Southwest wind around 12 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
A chance of rain showers. Mostly cloudy, with a low around 44. Southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
A slight chance of rain showers. Mostly sunny, with a high near 71. Southwest wind 6 to 12 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Mostly Sunny
|
51°F |
6 to 9 mph
NW
|
|
Friday Night
Apr 10
|
Mostly Clear
|
31°F |
1 to 5 mph
E
|
|
Saturday
Apr 11
|
Partly Sunny then Chance Showers And Thunderstorms
|
57°F |
1 to 12 mph
SE
|
|
Saturday Night
Apr 11
|
Showers And Thunderstorms
|
48°F |
14 mph
S
|
|
Sunday
Apr 12
|
Showers And Thunderstorms
|
71°F |
14 to 21 mph
S
|
|
Sunday Night
Apr 12
|
Showers And Thunderstorms Likely
|
60°F |
10 to 20 mph
SW
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms
|
77°F |
10 mph
SW
|
|
Monday Night
Apr 13
|
Showers And Thunderstorms Likely
|
57°F |
7 to 10 mph
S
|
|
Tuesday
Apr 14
|
Showers And Thunderstorms Likely
|
74°F |
7 to 10 mph
S
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms Likely
|
49°F |
10 mph
S
|
|
Wednesday
Apr 15
|
Rain Showers Likely
|
63°F |
12 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Rain Showers
|
44°F |
7 to 10 mph
SW
|
|
Thursday
Apr 16
|
Slight Chance Rain Showers
|
71°F |
6 to 12 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portland.