Brown County, WI Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Brown County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny. High near 67, with temperatures falling to around 63 in the afternoon. Northwest wind 7 to 12 mph, with gusts as high as 18 mph.
County Weather Overview
This county weather page brings together forecast coverage for Brown County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Brown County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 13 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 4:12 PM CDT
- Forecast office
- GRB
- Source
- NOAA / NWS
Daily Outlook
This Week in Brown County
This Afternoon looks like the warmest upcoming period in Brown County at 67 degrees F.
Friday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Friday at about 15 to 21 mph NW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 4:12 PM 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
Partly cloudy, with a low around 50. North northwest wind 2 to 6 mph.
Partly sunny, with a high near 61. North wind 2 to 9 mph.
Mostly cloudy, with a low around 45. East northeast wind around 5 mph.
Rain showers likely after 7am. Mostly cloudy, with a high near 59. East wind around 5 mph. Chance of precipitation is 70%.
Rain showers likely before 1am. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.
Mostly sunny, with a high near 54.
Widespread frost after 2am. Mostly clear, with a low around 32.
Widespread frost before 9am. Sunny, with a high near 58.
Clear, with a low around 38.
Sunny, with a high near 64.
Partly cloudy, with a low around 45.
Mostly sunny, with a high near 65.
Areas of fog after 4am. Partly cloudy, with a low around 43.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 13
|
Mostly Sunny
|
67°F |
7 to 12 mph
NW
|
|
Tonight
Oct 13
|
Partly Cloudy
|
50°F |
2 to 6 mph
NNW
|
|
Wednesday
Oct 14
|
Partly Sunny
|
61°F |
2 to 9 mph
N
|
|
Wednesday Night
Oct 14
|
Mostly Cloudy
|
45°F |
5 mph
ENE
|
|
Thursday
Oct 15
|
Rain Showers Likely
|
59°F |
5 mph
E
|
|
Thursday Night
Oct 15
|
Rain Showers Likely
|
41°F |
2 to 15 mph
NNW
|
|
Friday
Oct 16
|
Mostly Sunny
|
54°F |
15 to 21 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear then Widespread Frost
|
32°F |
3 to 14 mph
NW
|
|
Saturday
Oct 17
|
Widespread Frost then Sunny
|
58°F |
2 to 13 mph
WSW
|
|
Saturday Night
Oct 17
|
Clear
|
38°F |
12 mph
SW
|
|
Sunday
Oct 18
|
Sunny
|
64°F |
13 to 16 mph
SW
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
45°F |
6 to 12 mph
SW
|
|
Monday
Oct 19
|
Mostly Sunny
|
65°F |
5 mph
WSW
|
|
Monday Night
Oct 19
|
Partly Cloudy then Areas Of Fog
|
43°F |
2 mph
WSW
|
Major City Forecasts
Live forecast snapshots for major cities across Brown County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Brown County.
Largest mapped city population in this region: 25,014.
