Brillion, WI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Brillion, WI in one place.
Mostly sunny, with a high near 53.
Local Weather Overview
This forecast page for Brillion, 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: Apr 9, 2026 7:41 AM CDT.
The active forecast window currently covers Apr 11 to Apr 15, 2026 for Brillion, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 11 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 7:41 AM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Brillion
Monday looks like the warmest upcoming period in Brillion at 74 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 39 degrees F.
The strongest winds are forecast for Sunday at about 15 to 20 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 7:41 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
Rain showers likely between 7pm and 10pm, then showers and thunderstorms. Mostly cloudy, with a low around 43. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a high near 69. Chance of precipitation is 80%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a high near 62. Chance of precipitation is 80%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Mostly Sunny
|
53°F |
3 to 12 mph
SSE
|
|
Saturday Night
Apr 11
|
Showers And Thunderstorms
|
43°F |
10 to 15 mph
SSE
|
|
Sunday
Apr 12
|
Showers And Thunderstorms
|
69°F |
15 to 20 mph
S
|
|
Sunday Night
Apr 12
|
Showers And Thunderstorms Likely
|
60°F |
20 mph
SW
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms
|
74°F |
13 to 17 mph
SW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
53°F |
13 mph
S
|
|
Tuesday
Apr 14
|
Showers And Thunderstorms
|
62°F |
14 mph
NNW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms Likely
|
39°F |
13 mph
NE
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
55°F |
15 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Brillion.
