What is today's weather forecast for Brown County, IL?

Today's forecast for Brown County shows a high of 62 degrees and a low of 40 degrees Fahrenheit. Sunny, with a high near 62.

What is the 7-day weather forecast for Brown County, IL?

The 7-day forecast for Brown County shows highs from 58 to 72 degrees and lows from 35 to 46 degrees Fahrenheit. Expect precipitation on 2 days with chances of 20% or higher.

Will it rain in Brown County, IL this week?

Yes, rain is possible in Brown County this week. Precipitation chances: Friday (33% chance), Saturday (33% chance).

How accurate is the Brown County weather forecast?

WeatherForYou provides highly accurate Brown County forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Brown County, IL Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

62°F
Feels Like 62°F

Humidity 29% Dew Point 29°F Wind WNW 17 MPH Gusts 28 Barometer 29.96 in.761.0 mm

Solar Rad 321 w/m2 Visibility 10 mi.

Report from 3 miles WNW of central Brown County
at 4:15 PM Sun, Oct 19, 2025

Current Conditions From Nearby Local Station

62°F
Feels Like 62°F

Humidity 29% Dew Point 29°F Wind WNW 17 MPH Gusts 28 Barometer 29.96 in.761.0 mm

Solar Rad 321 w/m2 Visibility 10 mi.

Report from 3 miles WNW of central Brown County
at 4:15 PM Sun, Oct 19, 2025

Point Forecast at a Glance

SunOct 19

62°

40°

MonOct 20

72°

46°

TueOct 21

60°

39°

WedOct 22

60°

35°

ThuOct 23

62°

38°

FriOct 24

30%

58°

44°

SatOct 25

30%

59°

46°

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 58°F to 72°F. Some rain possible with at least 2 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 5°F below the historical average for October. Normal highs for this period are around 67°F with lows around 44°F.

This Date in Weather History

1844 - The famous "Lower Great Lakes Storm" occurred. Southwesterly winds were at hurricane force for five hours, driving lake waters into downtown Buffalo NY. The storm drowned 200 persons.

Brown County 7 Day Weather Forecast Details

Sunday Oct 19

Day: Sunny, with a high near 62. Northwest wind around 18 mph, with gusts as high as 28 mph.

Night: Clear, with a low around 40. Southwest wind 5 to 12 mph, with gusts as high as 21 mph.

Monday Oct 20

Day: Sunny, with a high near 72. South wind 7 to 21 mph, with gusts as high as 32 mph.

Night: Mostly clear, with a low around 46. West wind 10 to 14 mph, with gusts as high as 24 mph.

Tuesday Oct 21

Day: Sunny, with a high near 60. West wind 13 to 23 mph, with gusts as high as 33 mph.

Night: Mostly clear, with a low around 39.

Wednesday Oct 22

Day: Sunny, with a high near 60.

Night: Mostly clear, with a low around 35.

Thursday Oct 23

Day: Sunny, with a high near 62.

Night: Partly cloudy, with a low around 38.

Friday Oct 24

Day: A chance of rain showers after 7am. Partly sunny, with a high near 58. Chance of precipitation is 30%.

Night: A chance of rain showers. Mostly cloudy, with a low around 44. Chance of precipitation is 30%.

Saturday Oct 25

Day: A chance of rain showers. Partly sunny, with a high near 59. Chance of precipitation is 30%.

Night: A chance of rain showers before 1am. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.

Sun & Moon Monthly

First Light 6:51 AM

Sunrise 7:18 AM

Sunset 6:19 PM

Last Light 6:46 PM

Moonrise 5:29 AM

Moonset 5:21 PM

Moon Phase

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