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Gary, IN 46403 Weather
Current conditions
Observed at Gary Regional Airport · 40 min ago
Forecast
10-day-
This Afternoon
Sunny. High near 66, with temperatures falling to around 63 in the afternoon. North northeast wind 0 to 10 mph.
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Tonight
Mostly clear. Low around 44, with temperatures rising to around 46 overnight. East southeast wind 0 to 5 mph.
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Wednesday
Sunny. High near 70, with temperatures falling to around 66 in the afternoon. South wind around 0 mph.
National Weather Service forecast updated 3 hrs ago.
Hourly
Hourly forecast- Now65°
- 2 PM66°
- 3 PM66°
- 4 PM65°
- 5 PM63°
- 6 PM60°
- 7 PM58°
- 8 PM57°
- 9 PM55°
- 10 PM54°
- 11 PM52°
- Wed12 AM51°
- 1 AM50°
- 2 AM50°
- 3 AM48°
- 4 AM47°
- 5 AM46°
- 6 AM45°
- 7 AM44°
- 8 AM47°
- 9 AM52°
- 10 AM56°
- 11 AM61°
- 12 PM65°
10-day forecast
Details- TodayOct 20Sunny44°66°
- WedOct 21Sunny48°70°
- ThuOct 22Sunny48°67°
- FriOct 23Sunny48°68°
- SatOct 24Mostly Sunny52°67°
- SunOct 25Partly Sunny53°70°
- MonOct 26Partly Sunny14%50°65°
- TueOct 27Cloudy47°56°
- WedOct 28Cloudy45°52°
- ThuOct 29Sunny44°55°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Gary
More weather news-
Frost advisory issued for parts of Chicago area, with frigid temps possibleWarm temps set to return, too The Chicago area will have to deal with another night of chilly temperatures, and parts of the region will be under a frost advisory overnight. According to the National Weather Service…
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Frost possible in some areas before a chilly Saturday, then a warmup beginsThere's usually a big temperature change in the fall, and after the week began with a record high of 88 degrees at O'Hare International Airport, it appears the cooler weather has arrived. Conditions were much different…
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Chicago weather: Cloudy, rainy Friday ahead of warmer, sunnier weekendKaitlin Cody has your Chicago weather update! CHICAGO - A cloudy and damp day will give way to a much sunnier stretch across the Chicago area. Friday will bring cloudy skies and temperatures in the low 50s. Rain could…
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‘Coldest night of the season:' Frost advisory, freeze warning issued for parts of Chicago areaTemps drop below the freezing mark for parts of the area Saturday morning Here it comes, Chicago: Frost advisories and freeze warnings were issued for parts of the area, with temperatures dropping into the 30s overnight…
- Freeze watch issued in Twin Cities, southern half of Minnesota with temps set to plunge
The first freeze watch of the season has been issued for the Twin Cities, with overnight temperatures set to plunge in the coming days. The watch has been put into effect for much of the southern half of Minnesota from…
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Chicago weather: Rain today before sunny weekendMike Caplan has your Chicago weather update! CHICAGO - Two weeks into the month and there has yet to be a day with temperatures cooler than normal. Today will not be an exception. There is some chilly air on the way —…
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Storm system to bring ‘soaking rainfall,' cold temperatures and possible first frostA fall storm system with periods of "soaking rainfall," thunder and winds gusting as high as 40 mph will move into the Chicago area Thursday, the NBC 5 Storm Team said. The system will also bring much colder…
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Chances of rain, plunging temperatures expected to wrap up weekThe Chicago area has been enjoying a run of pleasant weather, but blustery conditions and much colder temperatures are on the way. In fact, overnight lows could plunge enough to allow for the formation of frost in some…
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Chicago weather: Rain gives way to sunny, fall-like weekendKaitlin Cody has your Chicago weather update! CHICAGO - Today will be mostly cloudy with temperatures in the low to mid 60s. There is some rain out there, but we are on a drying trend as we get into the afternoon…
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Farmer’s Almanac Drops Thanksgiving Forecast and If It’s Correct, Folks in Indiana & Kentucky Should Get Their Snow Shovels ReadyIn the past several years, Thanksgiving weather has been pretty warm. I don't recall the last time I saw snow on Thanksgiving in the Tri-State. We even spent Thanksgiving outside like a picnic a few years ago because it…
Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- TueModerate
- WedModerate
Hammond-Gary, IN reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyWanatah 2 Wnw, records since 1961. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Chicago 42 km
- Cicero 49 km
- Hammond 20 km
- Orland Park 50 km
- Tinley Park 44 km
- Oak Lawn 43 km
- Berwyn 52 km
- Oak Park 54 km
- Calumet City 23 km
- Portage 8 km
- Merrillville 15 km
- Valparaiso 22 km
Forecasters' discussion
From the National Weather Service office in LOT, issued 7 hrs ago
Key Messages
- Some ground fog may develop within 10-15 miles of Lake Michigan during early morning hours the next few days. Any fog would then quickly dissipate after sunrise.
- An extended period of dry and above to much above average temperatures is expected through the upcoming weekend.
Discussion
Issued at 154 AM CDT Tue Oct 20 2026
No significant weather is expected through the upcoming weekend with above to much above average temperatures each day. Generally light winds should allow weak lake breezes to form each of the next several afternoons, but only result in slightly cooler conditions right near the lake. A modest increase in moisture in the wake of the afternoon lake breezes could allow for some ground fog to form during the early morning hours the next few days. Otherwise, look for mostly sunny conditions for the remainder of the work week.
- Borchardt/Izzi
Aviation
Issued at 620 AM CDT Tue Oct 20 2026
Key Aviation Messages for the current TAF period:
- Patchy fog, locally dense, expected through sunrise today for Chicago terminals north of a KARR to KMDW line
- Another chance for fog tomorrow morning for terminals closer to the lake
A locally dense fog bank is slowly moving west-southwest through northeastern Illinois this morning. The densest portion of this fog dropped visibilities at KORD down to 1/8SM. This fog is expected to impact terminals north of a KARR to KMDW line. Some MVFR vis may develop south of this border, but there is lower confidence in dense fog currently. Once the sun rises, visibilities are expected to improve back to VFR conditions.
Winds are expected to be light and mostly out of the east- southeast today. Clear skies are expected tonight with light, if not calm, winds across the area leading to another chance for fog developing closer to the lake, similar to what is happening this morning. A TEMPO was added for tomorrow morning introducing reduced vis which can be adjusted in later TAF packages with updated confidence in fog development.
Lot Watches
IL...Dense Fog Advisory until 9 AM CDT this morning for ILZ005- ILZ006-ILZ013-ILZ103-ILZ104.
IN...None. LM...None.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.