National Weather Service Forecast for: Brownsburg IN
Issued by: National Weather Service Indianapolis, IN
Updated: 7:15 am EDT Apr 6, 2026
 
Today

Today: Sunny, with a high near 55. Northwest wind 9 to 18 mph, with gusts as high as 28 mph.
Sunny

 Tonight

Tonight: Mostly clear, with a low around 31. Northwest wind 8 to 10 mph, with gusts as high as 18 mph.
Mostly Clear

 Tuesday

Tuesday: Mostly sunny, with a high near 47. North northeast wind around 8 mph.
Mostly Sunny

 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 35. East southeast wind 6 to 8 mph.
Partly Cloudy

 Wednesday

Wednesday: Partly sunny, with a high near 66. South southeast wind 9 to 13 mph, with gusts as high as 20 mph.
Partly Sunny

 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 51. South wind around 11 mph, with gusts as high as 22 mph.
Mostly Cloudy

 Thursday

Thursday: Mostly sunny, with a high near 68. South southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Mostly Sunny

 Thursday
Night
Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 55. South wind around 9 mph.
Slight Chance
T-storms then
Chance
Showers
 Friday

Friday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 69. South southwest wind 7 to 9 mph. Chance of precipitation is 50%.
Chance
Showers
Hi 55 °F Lo 31 °F Hi 47 °F Lo 35 °F Hi 66 °F Lo 51 °F Hi 68 °F Lo 55 °F Hi 69 °F

Freeze Watch
Hazardous Weather Outlook
 

Today
 
 Sunny, with a high near 55. Northwest wind 9 to 18 mph, with gusts as high as 28 mph.
Tonight
 
 Mostly clear, with a low around 31. Northwest wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday
 
 Mostly sunny, with a high near 47. North northeast wind around 8 mph.
Tuesday Night
 
 Partly cloudy, with a low around 35. East southeast wind 6 to 8 mph.
Wednesday
 
 Partly sunny, with a high near 66. South southeast wind 9 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
 
 Mostly cloudy, with a low around 51. South wind around 11 mph, with gusts as high as 22 mph.
Thursday
 
 Mostly sunny, with a high near 68. South southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Thursday Night
 
 A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 55. South wind around 9 mph.
Friday
 
 A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 69. South southwest wind 7 to 9 mph. Chance of precipitation is 50%.
Friday Night
 
 A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52. North wind around 6 mph becoming east northeast after midnight.
Saturday
 
 A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 71.
Saturday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Sunday
 
 A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.

 

Forecast from NOAA-NWS for Brownsburg IN.