Custer, WI Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers then Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Custer, WI in one place.
A slight chance of rain showers before 8am. Mostly cloudy, with a high near 70. Northeast wind around 5 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Custer, 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: Sep 17, 2026 9:44 AM CDT.
The active forecast window currently covers Sep 17 to Sep 23, 2026 for Custer, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 17 to Sep 23, 2026
- Latest sync
- Sep 17, 2026 9:44 AM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Custer
Today looks like the warmest upcoming period in Custer at 70 degrees F.
Monday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Saturday at about 12 to 16 mph E.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 17, 2026 9:44 AM 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
Patchy fog between 8pm and 1am. Partly cloudy, with a low around 49. Northeast wind 1 to 5 mph.
Rain showers after 11am. Mostly cloudy. High near 64, with temperatures falling to around 62 in the afternoon. East wind 6 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain showers before 10pm, then showers and thunderstorms. Cloudy, with a low around 53. East wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.
Showers and thunderstorms. Cloudy, with a high near 64. East wind 12 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.
A chance of rain showers before 1am. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.
Partly sunny, with a high near 64.
Mostly cloudy, with a low around 45.
A slight chance of rain showers between 7am and 1pm. Mostly cloudy, with a high near 60. Chance of precipitation is 20%.
Mostly cloudy, with a low around 44.
A slight chance of rain showers between 7am and 1pm. Partly sunny, with a high near 62. Chance of precipitation is 20%.
Mostly cloudy, with a low around 46.
Mostly sunny, with a high near 68.
Partly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 17
|
Slight Chance Rain Showers then Mostly Cloudy
|
70°F |
5 mph
NE
|
|
Tonight
Sep 17
|
Patchy Fog
|
49°F |
1 to 5 mph
NE
|
|
Friday
Sep 18
|
Rain Showers
|
64°F |
6 to 12 mph
E
|
|
Friday Night
Sep 18
|
Showers And Thunderstorms
|
53°F |
15 mph
E
|
|
Saturday
Sep 19
|
Showers And Thunderstorms
|
64°F |
12 to 16 mph
E
|
|
Saturday Night
Sep 19
|
Chance Rain Showers
|
49°F |
12 mph
NE
|
|
Sunday
Sep 20
|
Partly Sunny
|
64°F |
14 mph
NE
|
|
Sunday Night
Sep 20
|
Mostly Cloudy
|
45°F |
9 to 13 mph
ENE
|
|
Monday
Sep 21
|
Slight Chance Rain Showers
|
60°F |
10 to 14 mph
ENE
|
|
Monday Night
Sep 21
|
Mostly Cloudy
|
44°F |
8 to 12 mph
ENE
|
|
Tuesday
Sep 22
|
Slight Chance Rain Showers
|
62°F |
8 to 12 mph
ENE
|
|
Tuesday Night
Sep 22
|
Mostly Cloudy
|
46°F |
3 to 8 mph
ENE
|
|
Wednesday
Sep 23
|
Mostly Sunny
|
68°F |
3 to 7 mph
ESE
|
|
Wednesday Night
Sep 23
|
Partly Cloudy
|
49°F |
1 to 5 mph
ESE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Custer.