National Weather Service Forecast for: Brownsburg IN
Issued by: National Weather Service Indianapolis, IN
Updated: 3:45 am EST Dec 5, 2025
 
Overnight

Overnight: Mostly cloudy, with a steady temperature around 11. Calm wind.
Mostly Cloudy

Friday

Friday: Mostly sunny, with a high near 30. Calm wind becoming south southwest 5 to 8 mph in the morning.
Mostly Sunny

Friday
Night
Friday Night: Mostly cloudy, with a low around 22. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Mostly Cloudy

Saturday

Saturday: Isolated snow showers before 1pm.  Mostly cloudy, with a high near 32. West southwest wind 5 to 7 mph.  Chance of precipitation is 20%.
Isolated Snow
Showers
Saturday
Night
Saturday Night: A 30 percent chance of snow after 1am.  Cloudy, with a low around 24. Light and variable wind.
Mostly Cloudy
then Chance
Snow
Sunday

Sunday: Snow likely, mainly before 1pm.  Cloudy, with a high near 31. East southeast wind 5 to 10 mph becoming northwest in the afternoon.  Chance of precipitation is 70%.
Snow Likely

Sunday
Night
Sunday Night: Mostly cloudy, with a low around 9. North wind 6 to 9 mph.
Mostly Cloudy

Monday

Monday: Mostly sunny, with a high near 23. Northeast wind around 5 mph becoming southeast in the afternoon.
Mostly Sunny

Monday
Night
Monday Night: Partly cloudy, with a low around 13. Light and variable wind becoming south southwest 6 to 11 mph in the evening. Winds could gust as high as 21 mph.
Partly Cloudy

Lo 11 °F Hi 30 °F Lo 22 °F Hi 32 °F Lo 24 °F Hi 31 °F Lo 9 °F Hi 23 °F Lo 13 °F

Hazardous Weather Outlook
 

Overnight
 
Mostly cloudy, with a steady temperature around 11. Calm wind.
Friday
 
Mostly sunny, with a high near 30. Calm wind becoming south southwest 5 to 8 mph in the morning.
Friday Night
 
Mostly cloudy, with a low around 22. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday
 
Isolated snow showers before 1pm. Mostly cloudy, with a high near 32. West southwest wind 5 to 7 mph. Chance of precipitation is 20%.
Saturday Night
 
A 30 percent chance of snow after 1am. Cloudy, with a low around 24. Light and variable wind.
Sunday
 
Snow likely, mainly before 1pm. Cloudy, with a high near 31. East southeast wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 70%.
Sunday Night
 
Mostly cloudy, with a low around 9. North wind 6 to 9 mph.
Monday
 
Mostly sunny, with a high near 23. Northeast wind around 5 mph becoming southeast in the afternoon.
Monday Night
 
Partly cloudy, with a low around 13. Light and variable wind becoming south southwest 6 to 11 mph in the evening. Winds could gust as high as 21 mph.
Tuesday
 
Partly sunny, with a high near 35. Southwest wind around 14 mph, with gusts as high as 24 mph.
Tuesday Night
 
A 30 percent chance of rain. Mostly cloudy, with a low around 29.
Wednesday
 
Rain likely. Cloudy, with a high near 37. Chance of precipitation is 70%.
Wednesday Night
 
A chance of rain and snow. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Thursday
 
A 20 percent chance of snow. Mostly cloudy, with a high near 25.

 

Forecast from NOAA-NWS for Brownsburg IN.