National Weather Service Forecast for: Indianapolis IN
Issued by: National Weather Service Indianapolis, IN
Updated: 12:16 am EST Dec 17, 2025
 
Overnight

Overnight: Mostly cloudy, with a low around 33. Southwest wind around 11 mph, with gusts as high as 23 mph.
Mostly Cloudy

 Wednesday

Wednesday: Partly sunny, with a high near 40. Southwest wind 3 to 8 mph.
Partly Sunny

 Wednesday
Night
Wednesday Night: A 30 percent chance of rain after 1am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a temperature falling to near 34 by 10pm, then rising to around 42 during the remainder of the night. South southeast wind 6 to 10 mph, with gusts as high as 23 mph.
Patchy Fog
then Chance
Rain and
Patchy Fog
 Thursday

Thursday: Rain. High near 51. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Rain

 Thursday
Night
Thursday Night: A chance of rain before 10pm, then a chance of rain and snow between 10pm and 1am, then a slight chance of snow after 1am. Mostly cloudy, with a low around 21. West wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Chance
Rain/Snow

 Friday

Friday: Partly sunny, with a high near 29. West wind 8 to 14 mph, with gusts as high as 24 mph.
Partly Sunny

 Friday
Night
Friday Night: Partly cloudy, with a low around 25. South wind 6 to 10 mph, with gusts as high as 21 mph.
Partly Cloudy

 Saturday

Saturday: Partly sunny, with a high near 46. South southwest wind 11 to 13 mph, with gusts as high as 25 mph.
Partly Sunny

 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 28. West northwest wind 6 to 8 mph.
Mostly Cloudy
Lo 33 °F Hi 40 °F Lo 34 °F⇑ Hi 51 °F Lo 21 °F Hi 29 °F Lo 25 °F Hi 46 °F Lo 28 °F

 

Overnight
 
 Mostly cloudy, with a low around 33. Southwest wind around 11 mph, with gusts as high as 23 mph.
Wednesday
 
 Partly sunny, with a high near 40. Southwest wind 3 to 8 mph.
Wednesday Night
 
 A 30 percent chance of rain after 1am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a temperature falling to near 34 by 10pm, then rising to around 42 during the remainder of the night. South southeast wind 6 to 10 mph, with gusts as high as 23 mph.
Thursday
 
 Rain. High near 51. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
 
 A chance of rain before 10pm, then a chance of rain and snow between 10pm and 1am, then a slight chance of snow after 1am. Mostly cloudy, with a low around 21. West wind 10 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Friday
 
 Partly sunny, with a high near 29. West wind 8 to 14 mph, with gusts as high as 24 mph.
Friday Night
 
 Partly cloudy, with a low around 25. South wind 6 to 10 mph, with gusts as high as 21 mph.
Saturday
 
 Partly sunny, with a high near 46. South southwest wind 11 to 13 mph, with gusts as high as 25 mph.
Saturday Night
 
 Mostly cloudy, with a low around 28. West northwest wind 6 to 8 mph.
Sunday
 
 Mostly sunny, with a high near 38. Northwest wind around 7 mph.
Sunday Night
 
 Mostly cloudy, with a low around 27.
Monday
 
 Partly sunny, with a high near 41.
Monday Night
 
 A 20 percent chance of rain. Mostly cloudy, with a low around 34.
Tuesday
 
 Mostly cloudy, with a high near 48.

 

Forecast from NOAA-NWS for Indianapolis IN.