National Weather Service Forecast for: Indianapolis IN
Issued by: National Weather Service Indianapolis, IN
Updated: 9:15 am EST Dec 20, 2025
 
Today

Today: Partly sunny, with a high near 48. Southwest wind 10 to 15 mph, with gusts as high as 34 mph.
Partly Sunny

 Tonight

Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 26. Northwest wind around 6 mph.
Decreasing
Clouds
 Sunday

Sunday: Sunny, with a high near 36. North northwest wind 3 to 6 mph.
Sunny

 Sunday
Night
Sunday Night: Increasing clouds, with a low around 23. Light and variable wind.
Increasing
Clouds
 Monday

Monday: Partly sunny, with a high near 47. South southeast wind 6 to 9 mph, with gusts as high as 18 mph.
Partly Sunny

 Monday
Night
Monday Night: A 50 percent chance of rain. Cloudy, with a low around 42. Southwest wind around 9 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain

 Tuesday

Tuesday: Mostly cloudy, with a high near 56. West southwest wind 7 to 9 mph.
Mostly Cloudy

 Tuesday
Night
Tuesday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 37. North northwest wind around 5 mph becoming calm in the evening.
Mostly Cloudy
then Slight
Chance Rain
 Wednesday

Wednesday: A 30 percent chance of rain after 1pm. Cloudy, with a high near 58. South southeast wind 5 to 8 mph.
Mostly Cloudy
then Chance
Rain
Hi 48 °F Lo 26 °F Hi 36 °F Lo 23 °F Hi 47 °F Lo 42 °F Hi 56 °F Lo 37 °F Hi 58 °F

 

Today
 
 Partly sunny, with a high near 48. Southwest wind 10 to 15 mph, with gusts as high as 34 mph.
Tonight
 
 Mostly cloudy, then gradually becoming mostly clear, with a low around 26. Northwest wind around 6 mph.
Sunday
 
 Sunny, with a high near 36. North northwest wind 3 to 6 mph.
Sunday Night
 
 Increasing clouds, with a low around 23. Light and variable wind.
Monday
 
 Partly sunny, with a high near 47. South southeast wind 6 to 9 mph, with gusts as high as 18 mph.
Monday Night
 
 A 50 percent chance of rain. Cloudy, with a low around 42. Southwest wind around 9 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
 
 Mostly cloudy, with a high near 56. West southwest wind 7 to 9 mph.
Tuesday Night
 
 A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 37. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
 
 A 30 percent chance of rain after 1pm. Cloudy, with a high near 58. South southeast wind 5 to 8 mph.
Wednesday Night
 
 A 50 percent chance of rain. Cloudy, with a low around 51. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Christmas Day
 
 Mostly cloudy, with a high near 64.
Thursday Night
 
 A 20 percent chance of rain. Mostly cloudy, with a low around 51.
Friday
 
 Mostly sunny, with a high near 60.

 

Forecast from NOAA-NWS for Indianapolis IN.