Porterfield, WI Weather Forecast
Local 7-day forecast
Slight Chance Light Rain
Track current conditions, temperature changes, wind, and the full daily outlook for Porterfield, WI in one place.
A slight chance of rain. Mostly cloudy, with a high near 56. East southeast wind around 6 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Porterfield, 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 15, 2026 5:44 PM CDT.
The active forecast window currently covers Apr 15 to Apr 21, 2026 for Porterfield, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 5:44 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Porterfield
Thursday looks like the warmest upcoming period in Porterfield at 65 degrees F.
Sunday Night is the coolest period ahead with temperatures near 24 degrees F.
The strongest winds are forecast for Friday at about 3 to 14 mph SSE.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 5:44 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- GRB
- Radar station
- KGRB
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain before 9pm, then a chance of rain and patchy fog between 9pm and 11pm, then areas of fog and a chance of rain. Cloudy. Low around 44, with temperatures rising to around 46 overnight. East wind around 3 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Areas of fog and a chance of rain before 10am. Mostly sunny. High near 65, with temperatures falling to around 63 in the afternoon. East northeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 41. South southeast wind around 5 mph.
A slight chance of rain after 1pm. Partly sunny, with a high near 63. South southeast wind 3 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
A slight chance of rain before 7pm, then rain and a chance of thunderstorms. Mostly cloudy, with a low around 40. Chance of precipitation is 100%.
Rain likely before 1pm, then a slight chance of rain and snow. Partly sunny, with a high near 49. Chance of precipitation is 70%.
A slight chance of rain and snow before 7pm. Mostly cloudy, with a low around 28. Chance of precipitation is 20%.
Mostly sunny, with a high near 44.
Partly cloudy, with a low around 24.
Sunny, with a high near 51.
Partly cloudy, with a low around 38.
Mostly sunny, with a high near 63.
Partly cloudy, with a low around 37.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Apr 15
|
Slight Chance Light Rain
|
56°F |
6 mph
ESE
|
|
Tonight
Apr 15
|
Chance Light Rain then Areas Of Fog
|
44°F |
3 mph
E
|
|
Thursday
Apr 16
|
Areas Of Fog then Mostly Sunny
|
65°F |
6 mph
ENE
|
|
Thursday Night
Apr 16
|
Mostly Clear
|
41°F |
5 mph
SSE
|
|
Friday
Apr 17
|
Partly Sunny then Slight Chance Light Rain
|
63°F |
3 to 14 mph
SSE
|
|
Friday Night
Apr 17
|
Rain
|
40°F |
10 to 14 mph
SW
|
|
Saturday
Apr 18
|
Rain Likely then Slight Chance Rain And Snow
|
49°F |
10 to 14 mph
WNW
|
|
Saturday Night
Apr 18
|
Slight Chance Rain And Snow then Mostly Cloudy
|
28°F |
8 to 14 mph
WNW
|
|
Sunday
Apr 19
|
Mostly Sunny
|
44°F |
9 to 13 mph
NW
|
|
Sunday Night
Apr 19
|
Partly Cloudy
|
24°F |
3 to 9 mph
NW
|
|
Monday
Apr 20
|
Sunny
|
51°F |
5 to 12 mph
SSW
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
38°F |
7 to 10 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
63°F |
7 to 12 mph
W
|
|
Tuesday Night
Apr 21
|
Partly Cloudy
|
37°F |
6 to 9 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Porterfield.
