National Weather Service Forecast for: South Bend IN
Issued by: National Weather Service Northern Indiana
Updated: 4:30 pm EST Dec 20, 2025
 
Tonight

Tonight: Partly cloudy, with a low around 21. West wind 10 to 15 mph, with gusts as high as 25 mph.
Partly Cloudy

 Sunday

Sunday: Mostly sunny, with a high near 30. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Sunny

 Sunday
Night
Sunday Night: Partly cloudy, with a low around 20. Calm wind becoming south around 5 mph after midnight.
Partly Cloudy

 Monday

Monday: Mostly cloudy, with a high near 41. South wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Cloudy

 Monday
Night
Monday Night: A slight chance of rain and snow before 1am. Cloudy, with a low around 36. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Slight Chance
Rain/Snow
 Tuesday

Tuesday: Mostly cloudy, with a high near 45.
Mostly Cloudy

 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 27.
Mostly Cloudy

 Wednesday

Wednesday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 47.
Mostly Cloudy
then Chance
Rain
 Wednesday
Night
Wednesday Night: Rain, mainly before 1am. Low around 41. Chance of precipitation is 80%.
Rain
Lo 21 °F Hi 30 °F Lo 20 °F Hi 41 °F Lo 36 °F Hi 45 °F Lo 27 °F Hi 47 °F Lo 41 °F

 

Tonight
 
 Partly cloudy, with a low around 21. West wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
 
 Mostly sunny, with a high near 30. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
 
 Partly cloudy, with a low around 20. Calm wind becoming south around 5 mph after midnight.
Monday
 
 Mostly cloudy, with a high near 41. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
 
 A slight chance of rain and snow before 1am. Cloudy, with a low around 36. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday
 
 Mostly cloudy, with a high near 45.
Tuesday Night
 
 Mostly cloudy, with a low around 27.
Wednesday
 
 A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 47.
Wednesday Night
 
 Rain, mainly before 1am. Low around 41. Chance of precipitation is 80%.
Christmas Day
 
 A 20 percent chance of rain. Cloudy, with a high near 57.
Thursday Night
 
 A 30 percent chance of rain. Mostly cloudy, with a low around 40.
Friday
 
 Mostly cloudy, with a high near 49.
Friday Night
 
 A slight chance of rain. Mostly cloudy, with a low around 33.
Saturday
 
 A slight chance of rain. Mostly cloudy, with a high near 44.

 

Forecast from NOAA-NWS for South Bend IN.