Oconomowoc, WI Live Doppler Radar
Live radar for Oconomowoc, Waukesha County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Oconomowoc?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 149 days in the Waukesha forecast zone and Waukesha County — the most common reported hazard around Oconomowoc, mostly in June and July. Next come heavy snow & winter storms (62 days) and lightning casualties & damage (45 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 149 | Jun 2026 | May 31, 1998 · $6.8 million damage |
| Heavy snow & winter storms | 62 | Nov 2025 | Jan 12, 2024 · $80,000 damage |
| Lightning casualties & damage | 45 | Apr 2026 | Apr 15, 2026 · 1 death |
| Excessive heat | 42 | Jun 2026 | Jul 29, 1999 · 1 death |
| Extreme cold & wind chill | 34 | Jan 2026 | Feb 5, 2007 · $3,000 damage |
| Flash flooding | 32 | Apr 2026 | Aug 6, 1998 · 2 deaths · $17 million damage |
| Flooding | 25 | Apr 2026 | Jun 1, 2004 · $6.0 million damage |
| High winds | 15 | Mar 2026 | Nov 10, 1998 · $1.1 million damage |
Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Waukesha forecast zone and Waukesha County; damage is as reported, not adjusted for inflation.
How much snow does Oconomowoc get?
A normal year brings about 40 inches of snow to Oconomowoc, based on NOAA's 1991–2020 climate normals for the Oconomowoc Wwtp weather station in town. The snowiest month is usually January (11.1 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.1 | 1.4 | 10.2 | 11.1 | 9.8 | 4.8 | 2.0 | 0.2 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Oconomowoc?
The closest NEXRAD Doppler radar is KMKX (Milwaukee/Sullivan, WI), about 10 miles south-southwest. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.
| Radar | Distance | Lowest beam over Oconomowoc | View |
|---|---|---|---|
| KMKX Milwaukee/Sullivan, WI | 10 mi south-southwest | 500 ft | Excellent — the lowest scan sees close to the ground |
| KGRB Green Bay, WI | 98 mi north | 9,400 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KLOT Chicago, IL | 106 mi south-southeast | 10,400 ft | Limited — the beam overshoots the lowest part of storms |
Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.
Tornado & hail history near Oconomowoc
Since 1950, NOAA has recorded 125 tornadoes within 25 miles of Oconomowoc, 29 of them EF2/F2 or stronger. Most came in June and July. The strongest was an F4 on April 27, 1984, which passed about 10 miles southeast of town and caused 1 death. The most recent was an EF0 on July 16, 2025, which passed about 16 miles north-northwest of town.
Hail: 360 reports of 1-inch or larger hail within 25 miles since 1955, 37 of them 2 inches or more; the largest was 4.25-inch hail on May 11, 2011.
Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.
On TALON you get Oconomowoc's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.
Oconomowoc radar FAQ
Where is the nearest weather radar to Oconomowoc, WI?
KMKX (Milwaukee/Sullivan, WI), about 10 miles south-southwest. KGRB (Green Bay, WI) is 98 miles away and also covers the area.
Does radar show snow in Oconomowoc?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Oconomowoc the lowest scan from KMKX is about 500 ft up.
Is TALON's radar for Oconomowoc free?
Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.
Should I rely on radar for my safety?
No app replaces official warnings. When the National Weather Service issues a warning for Oconomowoc, follow it right away — see watch vs. warning.
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