Local weather forecast

Weather in Chicago Heights, IL

Updated 2026-08-11 12:45 local time · ZIP codes 60411

Light rain
Now75°F

Light rain

High / Low88° / 72°
Rain chance82%
Wind12 mph
Weather alerts

Active alerts

5
Flood Advisory issued August 11 at 6:02AM CDT until August 11 at 8:00AM CDT by NWS Chicago IL

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Northern Jasper County in northwestern Indiana... Lake IN County in northwestern Indiana... Northeastern Newton County in northwestern Indiana... Southern Porter County in northwestern Indiana... * WHEN...Until 800 AM CDT. * IMPACTS...Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - At 600 AM CDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2 inches of rain have fallen. - Flooding impacts will continue. This mornings thunderstorms will exit the advisory area by 7 AM, but additional rain is expected later today which may redevelop flooding issues. - Some locations that will experience flooding include... Merrillville, Schererville, Hobart, Crown Point, Highland, Munster, Cedar Lake, Lowell, DeMotte, Hebron, Wheatfield, Griffith, Dyer, St. John, Lynwood, Lakes of the Four Seasons, Winfield, Roselawn and Kouts. - http://www.weather.gov/safety/flood

Safety instructions

A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Flood Advisory issued August 11 at 4:56AM CDT until August 11 at 8:00AM CDT by NWS Chicago IL

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Northern Jasper County in northwestern Indiana... Lake IN County in northwestern Indiana... Northeastern Newton County in northwestern Indiana... Southern Porter County in northwestern Indiana... * WHEN...Until 800 AM CDT. * IMPACTS...Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - At 456 AM CDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 2 inches of rain have fallen. - Some locations that will experience flooding include... Merrillville, Schererville, Hobart, Crown Point, Highland, Munster, Cedar Lake, Lowell, DeMotte, Hebron, Wheatfield, Griffith, Dyer, St. John, Lynwood, Lakes of the Four Seasons, Winfield, Roselawn and Kouts. - http://www.weather.gov/safety/flood

Safety instructions

A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Severe Thunderstorm Warning issued August 11 at 11:09AM CDT until August 11 at 11:45AM CDT by NWS Chicago IL

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.

Tornado Warning issued August 11 at 10:58AM CDT until August 11 at 11:30AM CDT by NWS Chicago IL

At 1057 AM CDT, a severe squall line capable of producing both tornadoes and extensive straight line wind damage was located near Crete, or near Steger, moving east at 55 mph. HAZARD...Tornado. 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. This tornadic thunderstorm will remain over mainly rural areas of southeastern Will and northeastern Kankakee Counties.

Safety instructions

Heavy rainfall may hide this tornado. Do not wait to see or hear the tornado. TAKE COVER NOW! 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.

Severe Thunderstorm Warning issued August 11 at 10:54AM CDT until August 11 at 11:45AM CDT by NWS Chicago IL

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.

Hourly

Next hours

NowLight rain75°23% rain
2 PMHeavy rain at times78°70% rain
3 PMSunny78°12% rain
4 PMSunny79°18% rain
5 PMSunny79°12% rain
6 PMSunny82°11% rain
7 PMSunny80°11% rain
8 PMClear77°13% rain
9 PMPatchy rain nearby76°26% rain
10 PMClear74°18% rain
11 PMClear73°20% rain
12 AMFog69°42% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
88° 72°Sunny
Rain 82%Gust 12 mph
Tomorrow2026-08-12
Sunny
80° 67°Sunny
Rain 86%Gust 9 mph
Thursday2026-08-13
Sunny
83° 66°Sunny
Rain 57%Gust 6 mph
Conditions

Weather details

Feels like79°F
Humidity100%
Pressure29.91 inHg
Visibility0 mi
Wind12 mph SW
Wind gusts24 mph
Precipitation0.00 in
UV index1
Daylight

Sunrise, sunset and moon

Sunrise05:55 AM
Sunset07:55 PM
Moonrise03:54 AM
Moon phaseNew Moon
Practical guide

Weather insights for today

Take an umbrella

Rain chance reaches about 85% over the next 12 hours.

Light layers should work

It feels like 79°F with winds near 12 mph.

Best window: 7 PM

80°F, 11% rain chance and 3 mph wind.

Use extra caution while driving

Visibility is around 0 mi; gusts may reach 24 mph.

Running conditions are less comfortable

Current temperature is 75°F, wind 12 mph, rain chance up to 85%.

Low UV protection needs

UV index is 1.

Chicago Heights weather today

Light rain and 75°F in Chicago Heights, IL. Today's high is 88°F with a 82% rain chance. Winds are around 12 mph with gusts near 24 mph. Relative humidity is 100%, pressure is 29.91 inHg, and visibility is about 0 miles.

Tonight and tomorrow in Chicago Heights

Sunrise is at 05:55 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 86%.

Nearby

Weather near Chicago Heights

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