DisasterAWARE
7
Very High

extreme-heat Extreme Heat Risk in Milwaukee, WI

Risk Level: Very High — Score 7/10

FEMA: 7Historical: 10

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Key Risk Factors

  • FEMA rates Milwaukee's county as Relatively High risk
  • Estimated annual loss of $25M from this hazard type
  • 22 events recorded in proximity in recent decades
  • Active in the last 12 months (12 events)
  • Average annual frequency: 3.1 events per year

Peak season: June-September

Last significant event: Extreme Heat Warning issued June 29 at 7:32PM CDT until July 1 at 7:00PM CDT by NWS Milwaukee/Sulliv (2026-06-28) — 12,500,000 people exposed

Highest Risk Cities for Extreme Heats

1
Chicago, IL
FEMA: 9Historical: 10
2
Houston, TX
FEMA: 9Historical: 10
3
Phoenix, AZ
FEMA: 9Historical: 10
4
Philadelphia, PA
FEMA: 9Historical: 10
5
Dallas, TX
FEMA: 9Historical: 10
6
Las Vegas, NV
FEMA: 9Historical: 10
7
Tucson, AZ
FEMA: 9Historical: 10
8
Mesa, AZ
FEMA: 9Historical: 10
9
Mumbai, India
Risk: 9Historical: 10
10
Shanghai, China
Risk: 9Historical: 10
Milwaukee is not in the top 10 for extreme heat risk among tracked cities.

How Milwaukee Compares

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Notable Extreme Heat Events Near Milwaukee

DisasterAWARE's historical archive records 5 notable extreme heat events near Milwaukee, ranked below by impact. The most impactful: Extreme Heat Warning issued June 29 at 7:32PM CDT until July 1 at 7:00PM CDT by NWS Milwaukee/Sulliv (June 2026) — 12,500,000 people exposed; $1,550,560M capital exposed.

Extreme Heat Warning issued June 29 at 7:32PM CDT until July 1 at 7:00PM CDT by NWS Milwaukee/Sulliv

June 27, 2026 — WARNING

12,500,000 people exposed; $1,550,560M capital exposed

Extreme Cold - East and southeast Wisconsin, United States

January 22, 2026 — WARNING

3,360,000 people exposed; $460,957M capital exposed

Extreme Cold - Eastern Wisconsin, United States

January 22, 2026 — WARNING

3,360,000 people exposed; $460,957M capital exposed

Extreme Cold - East-central _ Southeast Wisconsin, United States

January 22, 2026 — WATCH

3,360,000 people exposed; $460,957M capital exposed

Excessive Heat - Northern Minnesota and Northwestern Wisconsin, United States

June 27, 2026 — WATCH

46,400 people exposed; $4,102M capital exposed

Extreme Heat Preparedness Tips

  • 1.Stay hydrated — drink water regularly even if you don’t feel thirsty
  • 2.Avoid outdoor activities during peak heat hours (10 AM – 4 PM)
  • 3.Know the signs of heat exhaustion and heat stroke
  • 4.Check on elderly neighbors and those without air conditioning
  • 5.Never leave children or pets in a parked vehicle

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Landslide Risk in Milwaukee
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High Wind Risk in Milwaukee
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Extreme Heat Risk in Chicago, IL
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Extreme Heat Risk in Indianapolis, IN
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Extreme Heat Risk in Minneapolis, MN
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How this data is built

Milwaukee, WI extreme heat risk combines Historical Event Intelligence with authoritative hazard modeling from the Geospatial Intelligence Layers catalog. Live extreme heat monitoring is available through the Event Intelligence API and the DisasterAWARE Platform.

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