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September 2025 Climate Summary

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Gary Regional Airport (KGYY)

Lat: 41.61°NLon: 87.41°WElev: 584ft.

A Few Clouds

84°F

29°C

Humidity	51%
Wind Speed	Calm
Barometer	30.00 in
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Heat Index	85°F (29°C)
Last update	6 Oct 4:50 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Portage IN

Tonight
Low: 62 °F
Showers
Likely
Tuesday
High: 65 °F
Chance
Showers
Tuesday Night
Low: 52 °F
Mostly Clear
Wednesday
High: 61 °F
Sunny
Wednesday Night
Low: 43 °F
Clear
Thursday
High: 64 °F
Sunny
Thursday Night
Low: 43 °F
Mostly Clear
Friday
High: 66 °F
Mostly Sunny
Friday Night
Low: 51 °F
Partly Cloudy

Detailed Forecast

Tonight

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm. Mostly cloudy, with a low around 62. South wind 5 to 10 mph becoming north northwest after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday

A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 65. North northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

Tuesday Night

Mostly clear, with a low around 52. North wind 5 to 10 mph, with gusts as high as 15 mph.

Wednesday

Sunny, with a high near 61. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

Wednesday Night

Clear, with a low around 43. North northeast wind around 5 mph becoming east southeast after midnight. Winds could gust as high as 10 mph.

Thursday

Sunny, with a high near 64.

Thursday Night

Mostly clear, with a low around 43.

Friday

Mostly sunny, with a high near 66.