Milwaukee Local Weather RadarMilwaukee Weather Radar

Milwaukee Weather Radar

Milwaukee Live Weather

Milwaukee Live Weather Radar

Click to toggle between the Milwaukee cloud cover radar map and the Milwaukee precipitation radar map.

Milwaukee Hourly Weather Forecast

Milwaukee 7-Day Weather Forecast

Milwaukee Weather Overview

Milwaukee sits on Lake Michigan's western shore, where humid continental climate creates intense lake-effect snow, severe thunderstorms, and extreme temperature swings. The Milwaukee metro area averages 48.7 inches of snow and 34.57 inches of precipitation annually, with conditions that can shift dramatically within miles as lake-effect bands concentrate heavy snowfall over narrow zones while nearby areas stay clear.

Winter delivers Milwaukee's most dangerous weather conditions. The city's record low of −26°F hit on Cold Sunday (January 17, 1982) when Arctic air from Saskatchewan pushed into the Milwaukee region, creating wind chills well below −30°F. When northwest winds cross Lake Michigan during cold outbreaks, lake-effect snow bands form rapidly — Milwaukee weather radar shows exactly where these intense snow zones sit and whether they're moving toward your location. Blizzards combining heavy snow, winds above 35 mph, and near-zero visibility can paralyze the metro area for days.

Summer brings severe thunderstorms from April through August, producing large hail, damaging winds, and occasional tornadoes. On August 9-10, 2025, slow-moving storms dumped the Milwaukee area's second-highest two-day rainfall total in recorded history, causing flash flooding across the metro. Weather radar tracks these slow-moving cells before they stall over your neighborhood. Milwaukee's temperature extremes span 131 degrees — from that −26°F winter record to a summer high of 105°F set in July 1934. The NWS Milwaukee office (WFO MKX) in Sullivan monitors southeast Wisconsin weather patterns.

Milwaukee Weather Risks & Safety

Key weather hazards to monitor on the Milwaukee weather radar

Blizzard & Heavy Snow Risk

Milwaukee gets hit by blizzards when Arctic air combines with moisture — 12+ inches of snow, 35+ mph winds, near-zero visibility. On the radar you can watch the storm bands approach and figure out exactly when the worst will arrive. That timing matters: get your errands done before the bands reach you, and be ready for power outages and road closures that can last days.

Lake-Effect Snow Risk

Milwaukee gets lake-effect snow — and it's wild. Cold Arctic air blows over the warmer Great Lakes, picks up moisture, and dumps several inches of snow per hour in narrow bands. The tricky part: one neighborhood gets buried while another a few miles away sees blue sky. The radar is the only way to see where those bands are sitting and whether they're about to shift onto you.

Severe Thunderstorm Risk

Severe thunderstorms roll through Milwaukee regularly, especially spring through early fall. Expect damaging winds above 58 mph, large hail, and dangerous lightning. The radar shows you each storm cell's position, movement, and intensity — so you can tell if one is headed your way. When a thunderstorm warning drops for Milwaukee, get indoors and away from windows until it passes.

Extreme Cold & Wind Chill Risk

When Arctic air drops into Milwaukee, temperatures plunge well below zero and wind chill values become dangerous — frostbite can set in within minutes of exposed skin. On the radar, watch for the approaching cold front and any precipitation behind it that could freeze on contact. Before it hits: insulate your pipes, stock up on heating fuel, and plan to stay indoors. Wind chill advisories in Milwaukee mean business.

How to Use Milwaukee Weather Radar

Follow these steps to get the most from the Milwaukee weather radar data.
1

Check Current Conditions

Look at the weather status bar at the top of the Milwaukee radar page — it shows temperature, humidity, wind speed, and current conditions at a glance.

2

Watch the Radar Map

The radar map shows precipitation and cloud cover moving across Milwaukee. Toggle between the two views and play the animation to see which direction storms are moving and how fast.

3

Check the Forecast

Scroll down to the hourly and 7-day forecast. Look for any winter storms and blizzards in the next few hours or days that could affect your plans in Milwaukee.

4

Plan Your Next Move

Rain moving in? Reschedule outdoor plans. Severe weather approaching? Check back more often — Milwaukee weather can shift fast during storm season.

Who Benefits from Milwaukee Weather Radar

How different people use the Milwaukee radar data

Commuters & Drivers

Milwaukee commuters on I-94, I-43, and US-41 can check the radar before heading out to avoid whiteout lake-effect snow bands, flash flooding, or severe thunderstorm cells crossing their route.

Outdoor Enthusiasts

Runners along the Oak Leaf Trail, cyclists on the lakefront path, and park-goers at Lake Park need to monitor radar for sudden storm development — especially summer afternoons when severe thunderstorms form rapidly over hot, humid air.

Event Planners & Families

Outdoor events at American Family Field, Summerfest grounds, and festivals along the lakefront require constant radar monitoring during thunderstorm season and winter weather planning when blizzards threaten the region.

Outdoor Workers

Construction crews, utility workers, and outdoor service professionals across Greater Milwaukee rely on radar to time their work around incoming snow bands, thunderstorm cells, and dangerously cold Arctic fronts.

Milwaukee Weather FAQ

Common questions about Milwaukee weather patterns and radar
When is lake-effect snow season in Milwaukee?
Lake-effect snow hits Milwaukee most often from November through February when northwest winds blow Arctic air across Lake Michigan's warmer water. The city averages 48.7 inches of total snowfall per year, with lake-effect bands capable of dropping several inches per hour in narrow zones. The radar helps you track exactly where these intense snow bands are sitting and whether they're about to shift over your neighborhood.
How cold does Milwaukee get in winter?
Milwaukee's record low is −26°F, set on January 17, 1982 (Cold Sunday) and tied again on February 4, 1996. Wind chills during Arctic outbreaks can plunge well below −30°F, creating life-threatening conditions within minutes of exposed skin. The NWS Milwaukee office (WFO MKX) issues extreme cold warnings when these dangerous patterns approach — check the radar to see when the cold front is arriving.
What was the August 2025 Milwaukee flood?
On August 9-10, 2025, Milwaukee experienced the second-most recorded rainfall over a two-day period in the city's history. Flash flooding overwhelmed drainage systems across the metro area, causing major disruptions to transportation and infrastructure. Slow-moving thunderstorms dumped excessive rain in concentrated areas — exactly the type of event the radar helps you monitor in real-time by showing which neighborhoods are receiving the heaviest precipitation.
When do severe thunderstorms hit Milwaukee?
Milwaukee's severe thunderstorm season peaks from April through August. These storms produce large hail (sometimes golf ball-sized or larger), damaging winds above 58 mph, frequent lightning, and occasional tornadoes. Spring supercells are particularly dangerous when warm Gulf air collides with northern cold fronts. The doppler radar shows rotation signatures inside storm cells, giving you critical minutes to reach shelter before a tornado forms.
How is this different from Fox 6 or WISN 12 weather radar?
Fox 6 and WISN 12 are Milwaukee's most-searched TV weather stations, and their radar pages are excellent local resources. This site uses RainViewer data and Open-Meteo forecasts, updating approximately every 20 minutes. The advantage here is a clean, ad-free interface focused purely on radar and forecast data — no commercials or auto-play videos. For official NWS warnings and detailed local forecasting, the NWS Milwaukee office (WFO MKX) at weather.gov remains the authoritative source.
Does Lake Michigan moderate Milwaukee's temperatures?
Yes. Lake Michigan acts as a thermal buffer — keeping summer temperatures slightly cooler near the lakeshore and preventing the coldest Arctic air from reaching full intensity right at the water's edge. However, this same lake fuels intense lake-effect snow events when northwest winds blow across the open water. Milwaukee's location on the western shore means it gets hit by these snow bands regularly. The radar is essential for tracking lake-effect development in real-time.

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