Peru, WI Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Peru, WI in one place.
A chance of rain showers. Mostly cloudy, with a high near 79. South southwest wind 3 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Peru, 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: Aug 27, 2026 8:43 AM CDT.
The active forecast window currently covers Aug 29 to Sep 2, 2026 for Peru, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 2, 2026
- Latest sync
- Aug 27, 2026 8:43 AM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Peru
Sunday looks like the warmest upcoming period in Peru at 84 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Saturday at about 3 to 12 mph SSW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 8:43 AM CDT
- Coverage
- 5 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 showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
A chance of rain showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Chance Rain Showers
|
79°F |
3 to 12 mph
SSW
|
|
Saturday Night
Aug 29
|
Showers And Thunderstorms Likely
|
64°F |
7 to 10 mph
S
|
|
Sunday
Aug 30
|
Showers And Thunderstorms Likely
|
84°F |
9 mph
S
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms
|
67°F |
8 mph
SSE
|
|
Monday
Aug 31
|
Chance Showers And Thunderstorms
|
84°F |
9 mph
SSW
|
|
Monday Night
Aug 31
|
Slight Chance Showers And Thunderstorms
|
66°F |
5 to 8 mph
WSW
|
|
Tuesday
Sep 1
|
Chance Showers And Thunderstorms
|
83°F |
3 to 8 mph
W
|
|
Tuesday Night
Sep 1
|
Chance Rain Showers
|
62°F |
3 to 7 mph
WNW
|
|
Wednesday
Sep 2
|
Chance Rain Showers
|
83°F |
3 to 7 mph
SE
|
|
Wednesday Night
Sep 2
|
Chance Showers And Thunderstorms
|
62°F |
2 to 6 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Peru.