National Weather Service Forecast for: Brownsburg IN
Issued by: National Weather Service Indianapolis, IN
Updated: 1:45 am EST Dec 23, 2025
 
Overnight

Overnight: Areas of drizzle. Cloudy, with a steady temperature around 48. Southwest wind around 11 mph, with gusts as high as 22 mph.
Areas Drizzle
 Tuesday

Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 56. West southwest wind 10 to 13 mph, with gusts as high as 23 mph.
Decreasing
Clouds
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 32. Northwest wind around 6 mph becoming northeast after midnight.
Partly Cloudy
 Wednesday

Wednesday: Mostly cloudy, with a high near 53. South southeast wind 6 to 9 mph.
Mostly Cloudy
 Wednesday
Night
Wednesday Night: Rain. Patchy fog after 1am. Low around 46. South southeast wind 6 to 8 mph becoming west southwest after midnight. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Rain and
Patchy Fog
 Christmas
Day
Christmas Day: A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 59. West northwest wind 5 to 7 mph becoming south southeast in the afternoon.
Slight Chance
Rain
 Thursday
Night
Thursday Night: A 40 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 55. Southeast wind 6 to 16 mph becoming southwest after midnight. Winds could gust as high as 26 mph.
Chance Rain
 Friday

Friday: A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 65. Southwest wind 13 to 17 mph, with gusts as high as 26 mph.
Chance Rain
 Friday
Night
Friday Night: Partly cloudy, with a low around 44. West wind 6 to 8 mph becoming south after midnight.
Partly Cloudy
Lo 48 °F Hi 56 °F Lo 32 °F Hi 53 °F Lo 46 °F Hi 59 °F Lo 55 °F Hi 65 °F Lo 44 °F

 

Overnight
 
 Areas of drizzle. Cloudy, with a steady temperature around 48. Southwest wind around 11 mph, with gusts as high as 22 mph.
Tuesday
 
 Cloudy, then gradually becoming mostly sunny, with a high near 56. West southwest wind 10 to 13 mph, with gusts as high as 23 mph.
Tuesday Night
 
 Partly cloudy, with a low around 32. Northwest wind around 6 mph becoming northeast after midnight.
Wednesday
 
 Mostly cloudy, with a high near 53. South southeast wind 6 to 9 mph.
Wednesday Night
 
 Rain. Patchy fog after 1am. Low around 46. South southeast wind 6 to 8 mph becoming west southwest after midnight. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Christmas Day
 
 A 20 percent chance of rain before 1pm. Mostly cloudy, with a high near 59. West northwest wind 5 to 7 mph becoming south southeast in the afternoon.
Thursday Night
 
 A 40 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 55. Southeast wind 6 to 16 mph becoming southwest after midnight. Winds could gust as high as 26 mph.
Friday
 
 A 30 percent chance of rain before 1pm. Mostly cloudy, with a high near 65. Southwest wind 13 to 17 mph, with gusts as high as 26 mph.
Friday Night
 
 Partly cloudy, with a low around 44. West wind 6 to 8 mph becoming south after midnight.
Saturday
 
 Mostly cloudy, with a high near 60. South wind 6 to 10 mph, with gusts as high as 20 mph.
Saturday Night
 
 A 40 percent chance of rain. Mostly cloudy, with a low around 36.
Sunday
 
 A 20 percent chance of rain. Mostly cloudy, with a high near 47.
Sunday Night
 
 Mostly clear, with a low around 14.
Monday
 
 Sunny, with a high near 27.

 

Forecast from NOAA-NWS for Brownsburg IN.