Brownstown, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brownstown, a village in Fayette County, Illinois.
Overnight
56°F
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 56. South wind 9 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
7-day forecast for Brownstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Chance Light Rain | 9 to 13 mph S | 54% |
| Wednesday | 63°F | Slight Chance Light Rain then Mostly Cloudy | 7 to 13 mph SW | 22% |
| Wednesday Night | 43°F | Partly Cloudy | 6 mph SW | 1% |
| Thursday | 63°F | Mostly Sunny | 5 to 10 mph W | 0% |
| Thursday Night | 44°F | Mostly Cloudy | 3 mph NW | 1% |
| Friday | 56°F | Partly Sunny | 5 to 10 mph NW | 2% |
| Friday Night | 34°F | Partly Cloudy | 2 to 7 mph N | 0% |
| Saturday | 54°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 32°F | Partly Cloudy | 2 mph NW | 0% |
| Sunday | 59°F | Sunny | 1 to 6 mph NW | 1% |
| Sunday Night | 33°F | Clear | 2 mph W | 1% |
| Monday | 63°F | Sunny | 0 to 6 mph SW | 0% |
| Monday Night | 38°F | Clear | 3 mph SW | 0% |
| Tuesday | 67°F | Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Brownstown (38.994, -88.955). Updated through the day.
Growing snapshot for Brownstown
Last spring frost
Apr 3
First fall frost
Oct 24
Growing season
202 days
Hardiness zone
6b
More local growing data for Brownstown: nearby ZIP 62418 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Brownstown 4 Sw, Il (4.8 mi from Brownstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.