National Weather Service Forecast for: Gary IN
Issued by: National Weather Service Chicago, IL
Updated: 3:21 am CST Dec 18, 2025
 
Overnight

Overnight: A slight chance of showers before 4am, then showers likely with areas of drizzle after 4am. Cloudy, with a steady temperature around 44. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Showers
Likely and
Breezy

 Thursday

Thursday: Showers likely with areas of drizzle before 10am, then showers, mainly after 10am. High near 50. Breezy, with a south wind 15 to 25 mph becoming west southwest in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Breezy.
Showers
Likely then
Showers
 Thursday
Night
Thursday Night: A chance of rain and snow showers before 7pm, then a chance of snow showers. Cloudy, with a low around 14. Wind chill values as low as -3. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.
Breezy.
Chance
Rain/Snow
then Chance
Snow Showers
 Friday

Friday: Mostly cloudy, then gradually becoming sunny, with a high near 27. Wind chill values as low as -4. Breezy, with a west wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Decreasing
Clouds and
Breezy then
Mostly Sunny
 Friday
Night
Friday Night: Mostly cloudy, with a low around 23. South wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly Cloudy


 Saturday

Saturday: Mostly cloudy, with a high near 42.
Mostly Cloudy


 Saturday
Night
Saturday Night: Mostly clear, with a low around 20.
Mostly Clear


 Sunday

Sunday: Sunny, with a high near 28.
Sunny


 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 21.
Mostly Cloudy
Lo 44 °F Hi 50 °F Lo 14 °F Hi 27 °F Lo 23 °F Hi 42 °F Lo 20 °F Hi 28 °F Lo 21 °F

 

Overnight
 
 A slight chance of showers before 4am, then showers likely with areas of drizzle after 4am. Cloudy, with a steady temperature around 44. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
 
 Showers likely with areas of drizzle before 10am, then showers, mainly after 10am. High near 50. Breezy, with a south wind 15 to 25 mph becoming west southwest in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
 
 A chance of rain and snow showers before 7pm, then a chance of snow showers. Cloudy, with a low around 14. Wind chill values as low as -3. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 40%.
Friday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 27. Wind chill values as low as -4. Breezy, with a west wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
 
 Mostly cloudy, with a low around 23. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
 
 Mostly cloudy, with a high near 42.
Saturday Night
 
 Mostly clear, with a low around 20.
Sunday
 
 Sunny, with a high near 28.
Sunday Night
 
 Mostly cloudy, with a low around 21.
Monday
 
 Mostly cloudy, with a high near 38.
Monday Night
 
 Mostly cloudy, with a low around 34.
Tuesday
 
 Mostly cloudy, with a high near 44.
Tuesday Night
 
 Mostly cloudy, with a low around 34.
Wednesday
 
 Mostly cloudy, with a high near 43.

 

Forecast from NOAA-NWS for Gary IN.