49of 100

Today's score

Mosquitoes in Oconomowoc, WI

Waukesha County

Moderate risk

Mosquitoes are active, especially at dawn and dusk. Use repellent and empty any standing water around the yard.

Updated July 15, 2026

Season
Ramping up
Water/wetland
12%
Top species
Asian tiger mosquito

Right now

Latest reading
76°
Temperature
70%
Humidity
0.0"
Recent rain

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Know the evening before Oconomowoc spikes.

7-day outlook

Risk recalculates daily from the local forecast.

Today
49
Thu
54
Fri
50
Sat
56
Sun
37
Mon
52
Tue
36

What's active right now

Floodwater and container mosquitoes are active and building toward the summer peak. Aedes vexans (the floodwater biter) surges about a week after heavy rain, and the Asian tiger mosquito is out biting during the day around homes. Early summer is when nuisance biting takes off.

Local mosquito habitat

Mosquitoes breed in standing water, so a town's risk tracks how much of that it holds. Oconomowoc is 0% wetland and marsh, 12% open water, and 23% developed across its 11.76 sq mi, home to about 18,682 people. That makes it the 6th-wettest of the 37 towns in Waukesha County. Marshes and floodplains breed the floodwater and cattail mosquitoes; developed areas breed the house mosquito in storm-drain catch basins and backyard containers.

The single biggest thing a homeowner controls is standing water: empty anything that holds it, keep gutters clear, and change bird baths weekly. A licensed mosquito service handles the breeding sites you can't reach and treats the shady resting spots where adults wait out the day.

Mosquito control in Oconomowoc, WI

Do I need mosquito control in Oconomowoc?

Mosquito activity in Oconomowoc is moderate today (49/100). Mosquitoes are out, especially at dawn and dusk and in shady, humid corners. A seasonal treatment plan keeps numbers down before peak weeks hit.

Professional mosquito control in Oconomowoc usually pairs a barrier treatment, misted onto shrubs, tall grass, and shady borders where adults rest, with larval control that targets standing water and catch basins so new broods never hatch. Treatments are typically applied every three to four weeks through the season by a licensed company.

How much does mosquito control cost in Oconomowoc?

Most homeowners pay about $80 to $150 per visit for professional mosquito barrier spraying, or roughly $350 to $600 for a full season of treatments, depending on lot size and how much shade and standing water the property has. Quotes are free, so it costs nothing to get a real number for your yard.

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Are mosquitoes bad in Oconomowoc right now?

Floodwater and container mosquitoes are active and building toward the summer peak. In Oconomowoc, today's mosquito risk reads moderate (49/100). Mosquitoes are active, especially at dawn and dusk. Use repellent and empty any standing water around the yard.

Nearby towns

Mosquito pressure is local. Check the towns around you.