Brownsburg, IN Weather & Growing Conditions
Overnight
65°F
Mostly Cloudy
Mostly cloudy. Low around 65, with temperatures rising to around 68 overnight. Southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 65°F | Mostly Cloudy | 5 mph SE | 11% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 8 mph S | 63% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 6 mph S | 22% |
| Sunday | 83°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 to 8 mph WNW | 54% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely | 9 to 13 mph NE | 59% |
| Monday | 69°F | Showers And Thunderstorms Likely | 14 mph ENE | 63% |
| Monday Night | 54°F | Rain Showers Likely | 10 to 15 mph NE | 57% |
| Tuesday | 67°F | Chance Showers And Thunderstorms | 13 mph NE | 38% |
| Tuesday Night | 54°F | Chance Showers And Thunderstorms | 7 to 13 mph NNE | 34% |
| Wednesday | 68°F | Mostly Cloudy | 7 to 10 mph NNE | 14% |
| Wednesday Night | 54°F | Mostly Cloudy | 6 to 10 mph NNE | 9% |
| Thursday | 69°F | Partly Sunny | 6 to 9 mph NNE | 3% |
| Thursday Night | 54°F | Mostly Cloudy | 5 to 9 mph NNE | 3% |
| Friday | 72°F | Mostly Sunny | 6 to 9 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brownsburg, IN
Last spring frost
Apr 12
First fall frost
Oct 29
Growing season
198 days
Hardiness zone
6a
Explore more for Brownsburg, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Indianapolis Eagle Creek Ap, In (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.