For the following areas... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 1041 AM CDT, severe thunderstorms capable of producing waterspouts were located along a line extending from 9 nm northeast of Elgin to 9 nm southwest of Midway Airport to 7 nm southeast of Joliet, moving east at 50 knots. HAZARD...Waterspouts and wind gusts in excess of 65 knots. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. In addition, rapid large fluctuations in water levels are possible as and after these storms pass. severe thunderstorms will be near... Montrose Harbor, Wilmette Harbor, Monroe Harbor, 31st Street Harbor, Calumet Harbor, Harrison-Dever Crib, Burnham Harbor, Belmont Harbor, Jackson Park Harbor, and Diversy Harbor around 1100 AM CDT. Indiana Harbor around 1105 AM CDT. Burns Harbor and Marina Shores at Dune Harbor around 1120 AM CDT. Michigan City around 1130 AM CDT.
Weather in Hammond, IN
Updated 2026-08-11 13:15 local time · ZIP codes 46320, 46323, 46324, 46327
Light drizzle
Active alerts
SMWLOT The National Weather Service in Chicago has issued a * Special Marine Warning for... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... * Until 1215 PM CDT. * At 1009 AM CDT, severe thunderstorms were located along a line extending from 11 nm southwest of McHenry to 12 nm southwest of Aurora, moving east at 40 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Severe thunderstorms will be near... Montrose Harbor, Wilmette Harbor, Belmont Harbor, and Diversy Harbor around 1100 AM CDT. Monroe Harbor, 31st Street Harbor, Harrison-Dever Crib, Burnham Harbor, Jackson Park Harbor, 59th Street Marina, and DuSable Harbor around 1105 AM CDT. Calumet Harbor and Hammond Marina around 1110 AM CDT. Indiana Harbor around 1115 AM CDT. Marina Shores at Dune Harbor around 1130 AM CDT. Burns Harbor around 1135 AM CDT. Michigan City around 1150 AM CDT.
At 1109 AM CDT, severe thunderstorms were located along a line extending from Gary to Winfield to near Lake Village, moving east at 80 mph. THESE ARE DESTRUCTIVE STORMS producing measured winds gusts of 90 to over 100 mph. HAZARD...100 mph wind gusts. SOURCE...Radar indicated. IMPACT...You are in a life-threatening situation. Flying debris may be deadly to those caught without shelter. Mobile homes will be destroyed. Expect considerable damage to homes and businesses. Expect extensive tree damage and power outages. Locations impacted include... Hammond, Gary, Portage, Merrillville, East Chicago, Schererville, Hobart, Lansing, Crown Point, Highland, Munster, Cedar Lake, Lowell, Momence, Lake Village, Griffith, Dyer, St. John, Lake Station, Lynwood, Lakes of the Four Seasons, Whiting, Winfield, Beecher, and Roselawn.
Safety instructions
Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. This is an EXTREMELY DANGEROUS SITUATION with tornado like wind speeds expected. Mobile homes and high profile vehicles are especially susceptible to winds of this magnitude and may be overturned. For your protection move to an interior room on the lowest floor of a building. These storms have the potential to cause serious injury and significant property damage.
At 1100 AM CDT, a severe squall line capable of producing both tornadoes and extensive straight line wind gusts in excess of 100 mph was located near St. John, or near Crown Point, moving east at 70 mph. HAZARD...Tornadoes and 100 mph wind gusts. One tornado is likely moving through Lansing. Another is likely moving through St. John. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. These dangerous storms will be near... Merrillville, Hobart, Crown Point, Lakes of the Four Seasons, and Winfield around 1105 AM CDT.
Safety instructions
TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris. This cluster of thunderstorms is capable of producing tornadoes and widespread significant wind damage. Do not wait to see or hear the tornado. For your protection move to an interior room on the lowest floor of a building.
At 1054 AM CDT, severe thunderstorms were located along a line extending from Markham to near Crete to near Bradley, moving east at 75 mph. THESE ARE DESTRUCTIVE STORMS producing measured winds gusts of 90 to over 100 mph. HAZARD...100 mph wind gusts. SOURCE...Radar indicated. IMPACT...You are in a life-threatening situation. Flying debris may be deadly to those caught without shelter. Mobile homes will be destroyed. Expect considerable damage to homes and businesses. Expect extensive tree damage and power outages. These severe storms will be near... Hammond, Gary, Merrillville, East Chicago, Schererville, Lansing, Crown Point, Highland, Munster, and Cedar Lake around 1100 AM CDT. Hobart, Lake Village, Lake Station, and Winfield around 1105 AM CDT. Other locations in the path of these severe thunderstorms include Lakes of the Four Seasons, Roselawn, New Chicago and Shelby.
Safety instructions
Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. This is an EXTREMELY DANGEROUS SITUATION with tornado like wind speeds expected. Mobile homes and high profile vehicles are especially susceptible to winds of this magnitude and may be overturned. For your protection move to an interior room on the lowest floor of a building. These storms have the potential to cause serious injury and significant property damage.
Next hours
80°54% rain
74°90% rain
78°54% rain
76°29% rain
77°24% rain
78°15% rain80°13% rain
78°13% rain77°18% rain76°21% rain75°18% rain74°18% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance reaches about 90% over the next 12 hours.
It feels like 86°F with winds near 6 mph.
78°F, 13% rain chance and 5 mph wind.
Visibility is around 6 mi; gusts may reach 16 mph.
Current temperature is 80°F, wind 6 mph, rain chance up to 90%.
UV index is 2.
Hammond weather today
Light drizzle and 80°F in Hammond, IN. Today's high is 86°F with a 84% rain chance. Winds are around 6 mph with gusts near 10 mph. Relative humidity is 90%, pressure is 29.90 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Hammond
Sunrise is at 05:54 AM and sunset is at 07:55 PM. Tomorrow's forecast calls for Sunny with a high near 80°F and a low near 67°F. The maximum rain chance is 82%.