Brownstown, IL Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Brownstown, IL in one place.
Mostly cloudy, with a high near 78. East wind 3 to 7 mph.
Local Weather Overview
This forecast page for Brownstown, IL 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: May 25, 2026 10:04 PM CDT.
The active forecast window currently covers May 26 to Jun 1, 2026 for Brownstown, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 26 to Jun 1, 2026
- Latest sync
- May 25, 2026 10:04 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Brownstown
Thursday looks like the warmest upcoming period in Brownstown at 82 degrees F.
Sunday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Sunday at about 10 mph NE.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- May 25, 2026 10:04 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms before 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. East wind 2 to 6 mph. Chance of precipitation is 30%.
Showers and thunderstorms likely. Partly sunny, with a high near 79. Northeast wind around 3 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely before 7pm. Partly cloudy, with a low around 62. Northeast wind around 3 mph. Chance of precipitation is 70%.
Partly sunny, with a high near 82.
Mostly cloudy, with a low around 61.
Partly sunny, with a high near 75.
Mostly cloudy, with a low around 58.
Partly sunny, with a high near 75.
Partly cloudy, with a low around 57.
Mostly sunny, with a high near 76.
Mostly clear, with a low around 56.
Sunny, with a high near 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
May 26
|
Mostly Cloudy
|
78°F |
3 to 7 mph
E
|
|
Tuesday Night
May 26
|
Slight Chance Showers And Thunderstorms
|
63°F |
2 to 6 mph
E
|
|
Wednesday
May 27
|
Showers And Thunderstorms Likely
|
79°F |
3 mph
NE
|
|
Wednesday Night
May 27
|
Showers And Thunderstorms Likely then Partly Cloudy
|
62°F |
3 mph
NE
|
|
Thursday
May 28
|
Partly Sunny
|
82°F |
5 to 8 mph
NE
|
|
Thursday Night
May 28
|
Mostly Cloudy
|
61°F |
7 mph
E
|
|
Friday
May 29
|
Partly Sunny
|
75°F |
8 mph
E
|
|
Friday Night
May 29
|
Mostly Cloudy
|
58°F |
6 mph
NE
|
|
Saturday
May 30
|
Partly Sunny
|
75°F |
9 mph
NE
|
|
Saturday Night
May 30
|
Partly Cloudy
|
57°F |
8 mph
NE
|
|
Sunday
May 31
|
Mostly Sunny
|
76°F |
10 mph
NE
|
|
Sunday Night
May 31
|
Mostly Clear
|
56°F |
5 to 8 mph
NE
|
|
Monday
Jun 1
|
Sunny
|
77°F |
8 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Brownstown.