7/27 Midwest Severe Weather Power Outage Summary

7/27 Midwest Severe Weather is over. At its peak, 6:30 PM ET on 07/27/2026, 532,529 customers were without power in 7/27 Midwest Severe Weather's affected area (4.49% of tracked customers), across 3 states. The map above replays the storm; select an affected state, utility, or county below for local detail.

Peak customers without power
532,529
Customers served
11,863,339
Peak share without power
4.49%
States affected
3

Affected states in 7/27 Midwest Severe Weather

NameCustomers outCustomers served
Illinois329,2785,766,076
Wisconsin130,9052,826,099
Indiana102,0023,271,164

Most affected utilities in 7/27 Midwest Severe Weather

NameCustomers outCustomers served
Commonwealth Edison Company327,3204,111,459
We Energies125,849764,182
Northern Indiana Public Service Company58,023528,612
AES Indiana16,036520,707
Indiana Michigan Power15,943477,373
Wisconsin Public Service12,026611,341
Duke Energy7,099931,078
Ameren4,1891,220,194
Kankakee Valley REMC4,06821,724
Alliant Energy2,303507,996
WIN Energy REMC2,21717,109
Warren County REMC1,9245,029
CenterPoint Energy Indiana1,899161,106
Xcel Energy1,845348,196
LaGrange County REMC1,78212,021
Norris Electric Cooperative1,56523,654
Springfield City Water Light & Power1,45168,566
Tipmont REMC1,18235,771
Southeastern Indiana REMC1,17628,829
Parke County REMC1,06712,643
Paulding-Putnam Electric1,0004,104
SouthEastern Illinois Electric Cooperative85525,172
EnerStar Electric Cooperative7725,120
Johnson County REMC73621,826
Anderson Light and Power71634,403
Marshall County REMC6547,487
Decatur County REMC6088,387
Fulton County REMC5826,196
Harrison REMC57125,122
Richmond Power and Light55319,147
WhiteWater Valley REMC49612,280
Carroll White REMC49215,143
Wayne-White Counties Electric Cooperative39016,721
RushShelby Energy35415,012
Tri-County Electric Cooperative (Texas)29916,441
Bartholomew County REMC29712,201
Kaukauna Utilities27417,300
Jasper County REMC2729,876
Jackson County REMC27125,285
Oakdale Electric Cooperative25218,185
Southwestern Electric Cooperative23924,557
Jo-Carroll Energy23320,359
Eastern Illini Electric Cooperative20513,265
Corn Belt Energy Corporation19437,506
Clinton County Electric Coop1726,206
Daviess-Martin County REMC1678,648
Henry County REMC1629,620
Miami-Cass REMC1506,079
East Central Energy1485,606
MidAmerican Energy Company8487,749

Most affected counties in 7/27 Midwest Severe Weather

NameCustomers outCustomers served
Cook County, Illinois164,4062,406,126
DuPage County, Illinois80,566368,887
Lake County, Illinois66,183298,408
Milwaukee County, Wisconsin41,262192,446
Kenosha County, Wisconsin38,32846,814
Will County, Illinois30,787266,490
Lake County, Indiana29,498152,715
Porter County, Indiana28,054101,948
Outagamie County, Wisconsin22,93767,238
Marion County, Indiana15,995495,901
Winnebago County, Wisconsin11,862100,444
Vilas County, Wisconsin10,91456,023
Grant County, Indiana8,39829,907
Oneida County, Wisconsin5,61537,468
Delaware County, Indiana5,29855,543
Calumet County, Wisconsin5,24651,472
LaPorte County, Indiana5,183101,132
Hamilton County, Indiana4,668177,841
Racine County, Wisconsin4,37353,219
Waukesha County, Wisconsin4,244105,212
Madison County, Illinois3,369125,418
Clark County, Illinois2,7765,400
Forest County, Wisconsin2,29820,260
LaGrange County, Indiana1,95321,831
Randolph County, Indiana1,89013,126
Pierce County, Wisconsin1,77018,522
Macoupin County, Illinois1,72824,848
Fond du Lac County, Wisconsin1,69459,649
Warren County, Indiana1,6703,944
Wayne County, Indiana1,66029,384
Sangamon County, Illinois1,45295,264
Posey County, Indiana1,39715,006
Walworth County, Wisconsin1,35961,348
Fountain County, Indiana1,2855,871
Tazewell County, Illinois1,22365,292
Bond County, Illinois1,2148,267
Gibson County, Indiana1,16719,234
Effingham County, Illinois1,11317,269
Kewaunee County, Wisconsin1,06622,258
Parke County, Indiana1,0527,525
Allen County, Indiana1,005191,972
Vanderburgh County, Indiana99499,358
Marinette County, Wisconsin98834,934
Ripley County, Indiana97215,371
McHenry County, Illinois968138,552
Monroe County, Illinois95812,596
Marion County, Illinois94820,363
Vigo County, Indiana93753,423
Miami County, Indiana8977,785
Bartholomew County, Indiana89341,990

View the US power outage map

Outage data was collected directly from utility providers throughout this storm and is no longer updating. Peak reading 6:30 PM ET on 07/27/2026.

Power Restoration

Most storm-affected outages are restored within a few hours once crews are dispatched. Widespread storm outages can take a day or longer. For a live estimate, find your utility below and report your outage to get area-specific updates.

Power Outage FAQ

How many customers lost power in the affected area?
At its peak, 6:30 PM ET on 07/27/2026, 532,529 customers were without power in the affected area. The map above replays the storm.
How long do power outages usually last in the affected area?
Most are restored within a few hours. Major storms can extend restoration to a day or longer.
Why is my power out?
Common causes are storms, high winds, equipment faults, and planned maintenance. Your utility lists the cause when it is known.
How can I check outages near me?
This storm's outages are on the replay map above. For outages happening now, select your utility or county below.

Outage Safety & Prep Tips

  • Report the outage to your utility so crews know your address is affected.
  • Keep refrigerator and freezer doors closed; food stays safe for about 4 hours.
  • Unplug sensitive electronics to protect them from surges when power returns.
  • Never run a generator indoors or in a garage. Keep it outside, away from windows.
  • If you rely on powered medical equipment, contact your utility about its medical priority program.