Merrillan, WI Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Merrillan, WI in one place.
Sunny. High near 94, with temperatures falling to around 92 in the afternoon. Heat index values as high as 97. West wind 5 to 9 mph.
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: Jul 13, 2026 1:16 PM CDT.
The active forecast window currently covers Jul 14 to Jul 19, 2026 for Merrillan, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 19, 2026
- Latest sync
- Jul 13, 2026 1:16 PM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Merrillan
Tuesday looks like the warmest upcoming period in Merrillan at 94 degrees F.
Sunday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 9 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 13, 2026 1:16 PM CDT
- Coverage
- 6 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 68. West wind 2 to 8 mph.
Sunny, with a high near 93. Northwest wind around 5 mph.
Mostly clear, with a low around 66. Northeast wind around 3 mph.
Sunny, with a high near 92. South wind 1 to 6 mph.
Partly cloudy, with a low around 68. South wind around 5 mph.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. South wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. Southwest wind 5 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 88. Southwest wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 63. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 86. Southwest wind 3 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 62. West wind 5 to 8 mph. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
94°F |
5 to 9 mph
W
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
68°F |
2 to 8 mph
W
|
|
Wednesday
Jul 15
|
Sunny
|
93°F |
5 mph
NW
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
66°F |
3 mph
NE
|
|
Thursday
Jul 16
|
Sunny
|
92°F |
1 to 6 mph
S
|
|
Thursday Night
Jul 16
|
Partly Cloudy
|
68°F |
5 mph
S
|
|
Friday
Jul 17
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
5 to 9 mph
S
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms
|
67°F |
5 to 8 mph
SW
|
|
Saturday
Jul 18
|
Slight Chance Showers And Thunderstorms then Sunny
|
88°F |
6 to 9 mph
SW
|
|
Saturday Night
Jul 18
|
Mostly Clear then Slight Chance Showers And Thunderstorms
|
63°F |
3 to 7 mph
SW
|
|
Sunday
Jul 19
|
Slight Chance Showers And Thunderstorms then Sunny
|
86°F |
3 to 9 mph
SW
|
|
Sunday Night
Jul 19
|
Slight Chance Showers And Thunderstorms
|
62°F |
5 to 8 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Merrillan.