Merrillan, WI Weather Forecast
Local 7-day forecast
Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Merrillan, WI in one place.
Rain showers after 10am. Cloudy. High near 52, with temperatures falling to around 50 in the afternoon. East wind 5 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half 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: Oct 14, 2026 8:47 PM CDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Merrillan, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 14, 2026 8:47 PM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Merrillan
Wednesday looks like the warmest upcoming period in Merrillan at 70 degrees F.
Friday Night is the coolest period ahead with temperatures near 25 degrees F.
The strongest winds are forecast for Friday at about 14 to 20 mph NW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 14, 2026 8:47 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
Rain showers. Cloudy. Low around 36, with temperatures rising to around 39 overnight. Northwest wind 5 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
A chance of rain showers before 1pm. Partly sunny, with a high near 52. Northwest wind 14 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Widespread frost after 11pm. Mostly clear, with a low around 25. West wind 0 to 10 mph, with gusts as high as 20 mph.
Widespread frost before 9am. Sunny, with a high near 58. Southwest wind 1 to 10 mph, with gusts as high as 23 mph.
Clear, with a low around 33. Southwest wind around 9 mph, with gusts as high as 21 mph.
Sunny, with a high near 65. Southwest wind 9 to 14 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 38. Southwest wind 2 to 9 mph, with gusts as high as 23 mph.
Mostly sunny, with a high near 67. Southwest wind around 3 mph.
Mostly clear, with a low around 37. South wind around 2 mph.
Sunny, with a high near 69. South wind 1 to 7 mph.
Mostly clear, with a low around 43. South wind around 5 mph.
A slight chance of rain showers after 7am. Mostly sunny, with a high near 70. South wind 3 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Rain Showers
|
52°F |
5 to 8 mph
E
|
|
Thursday Night
Oct 15
|
Rain Showers
|
36°F |
5 to 15 mph
NW
|
|
Friday
Oct 16
|
Chance Rain Showers
|
52°F |
14 to 20 mph
NW
|
|
Friday Night
Oct 16
|
Widespread Frost
|
25°F |
0 to 10 mph
W
|
|
Saturday
Oct 17
|
Widespread Frost then Sunny
|
58°F |
1 to 10 mph
SW
|
|
Saturday Night
Oct 17
|
Clear
|
33°F |
9 mph
SW
|
|
Sunday
Oct 18
|
Sunny
|
65°F |
9 to 14 mph
SW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
38°F |
2 to 9 mph
SW
|
|
Monday
Oct 19
|
Mostly Sunny
|
67°F |
3 mph
SW
|
|
Monday Night
Oct 19
|
Mostly Clear
|
37°F |
2 mph
S
|
|
Tuesday
Oct 20
|
Sunny
|
69°F |
1 to 7 mph
S
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
43°F |
5 mph
S
|
|
Wednesday
Oct 21
|
Slight Chance Rain Showers
|
70°F |
3 to 9 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Merrillan.