Merrillan, WI Weather Forecast
Local 7-day forecast
Rain Showers Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Merrillan, WI in one place.
Rain showers likely before 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 79. South wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Merrillan, 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 1:26 AM CDT.
The active forecast window currently covers Aug 29 to Sep 2, 2026 for Merrillan, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 2, 2026
- Latest sync
- Aug 27, 2026 1:26 AM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Merrillan
Sunday looks like the warmest upcoming period in Merrillan at 86 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Saturday at about 5 to 10 mph S.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 1:26 AM 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
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. South wind 6 to 9 mph. Chance of precipitation is 50%.
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. Partly cloudy, with a low around 67. South wind around 7 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. South wind around 7 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 64. Southwest wind 2 to 6 mph. Chance of precipitation is 30%.
A chance of rain showers. Mostly sunny, with a high near 85. West wind 2 to 6 mph. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 61. Southeast wind around 5 mph. Chance of precipitation is 30%.
A chance of rain showers. Mostly sunny, with a high near 85. Southeast wind 2 to 6 mph. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Rain Showers Likely
|
79°F |
5 to 10 mph
S
|
|
Saturday Night
Aug 29
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
63°F |
6 to 9 mph
S
|
|
Sunday
Aug 30
|
Chance Showers And Thunderstorms
|
86°F |
6 to 9 mph
S
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms
|
67°F |
7 mph
S
|
|
Monday
Aug 31
|
Chance Showers And Thunderstorms
|
86°F |
7 mph
S
|
|
Monday Night
Aug 31
|
Chance Showers And Thunderstorms
|
64°F |
2 to 6 mph
SW
|
|
Tuesday
Sep 1
|
Chance Rain Showers
|
85°F |
2 to 6 mph
W
|
|
Tuesday Night
Sep 1
|
Chance Rain Showers
|
61°F |
5 mph
SE
|
|
Wednesday
Sep 2
|
Chance Rain Showers
|
85°F |
2 to 6 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Merrillan.