Pest Forecast for Washington County, Wisconsin

Washington County, Wisconsin · Pop. 136,691

/100

HIGH OVERALL RISK

Washington County is currently experiencing high overall pest risk. Most active: Ticks (85), Mosquitoes (75), Spiders (73). Warm temperatures are supporting pest activity.

Last updated: June 5, 2026 · Source: Open-Meteo Professional Weather Data

Current Weather Conditions

70.4°F

Temperature

Feels like 75.5°F

90%

Humidity

Dewpoint 67.3°F

Rain (24h)

7-day: 0"

3.6 mph

Wind

Gusts 10.5 mph

67.3°F

Soil Temperature

Active pest zone

41%

Soil Moisture

Saturated

Rain (3-day)

Rain (7-day)

Source: Open-Meteo weather models for Washington County area · Updated Jun 5, 7:02 PM

30-Day Weather Summary

67.8°F

Avg High

↑ vs avg

1.1"

Total Rainfall

9 rainy days

7-Day Weather Forecast

Today

Jun 5

73°

63°

92%

0.189" rain

Sat

Jun 6

78°

63°

34%

0.039" rain

Sun

Jun 7

74°

58°

Mon

Jun 8

68°

59°

61%

0.114" rain

Tue

Jun 9

77°

62°

61%

Wed

Jun 10

86°

63°

17%

0.882" rain

Thu

Jun 11

88°

75°

22%

All Pest Risk Scores for Washington County

Ticks

Steady

/100

SEVERE

Temps of 70.4°F are in the tick questing range.

View Full Forecast →

Mosquitoes

Steady

/100

HIGH

Warm temps (70.4°F) support mosquito activity.

View Full Forecast →

Spiders

Steady

/100

HIGH

Humidity at 90% attracts insects, drawing spiders.

View Full Forecast →

Termites

Steady

/100

HIGH

Warm (70.4°F) and humid (90%) soil supports termite activity.

View Full Forecast →

Ants

Steady

/100

HIGH

Warm conditions (70.4°F) keep ant foraging active.

View Full Forecast →

Wasps

Steady

/100

HIGH

Warm temps (70.4°F) fuel peak wasp foraging.

View Full Forecast →

Mice & Rats

Steady

/100

LOW

Mild temps (70.4°F) reduce indoor rodent pressure.

View Full Forecast →

3-Day Pest Outlook for Washington County

Pest	Today	Sat	Sun
Ticks	85 🔴	90 🔴 +5	90 🔴 +5
Mosquitoes	75 🟠	83 🔴 +8	75 🟠
Spiders	73 🟠	76 🟠 +3	76 🟠 +3
Termites	70 🟠	75 🟠 +5	75 🟠 +5
Ants	60 🟠	65 🟠 +5	60 🟠
Wasps	60 🟠	65 🟠 +5	60 🟠
Mice & Rats	13 🟢	5 🟢 -8	5 🟢 -8

Projected from Open-Meteo forecast data. Actual scores update every 3 hours.

Need Pest Control in Washington County?

Ticks risk is SEVERE (85/100)

Professional treatment is recommended when scores are this high.

Pest Seasonality in Washington County

Month	Active Pests
Jan	Mice/Rats (indoor), Spiders (indoor)
Feb	Mice/Rats (indoor)
Mar	Ants (early), Termites (swarm season starts)
Apr	Ticks (season starts), Ants, Termites
May	Ticks (peak nymphs), Mosquitoes (start), Ants
Jun ← Now	Ticks (peak), Mosquitoes (surge), Wasps (nest building)
Jul	Mosquitoes (peak), Ticks, Wasps
Aug	Mosquitoes (peak), Wasps (peak), Spiders (increase)
Sep	Wasps (aggressive), Spiders, Mice (seeking warmth)
Oct	Mice/Rats (peak intrusion), Spiders (indoor)
Nov	Mice/Rats (indoor)
Dec	Mice/Rats (indoor)

Nearby Cities

Pest FAQ for Washington County

What pests are active in Washington County right now?

Currently active pests in Washington County: Ticks (severe risk, score 85/100), Mosquitoes (high risk, score 75/100), Spiders (high risk, score 73/100), Termites (high risk, score 70/100), Ants (high risk, score 60/100), Wasps (high risk, score 60/100). Scores are updated every 3 hours from real-time weather data.

When is the best time for pest control in Washington County?

Early spring (March-April) is the most effective time for preventive treatment in Washington County. This is when pest populations are lowest and treatments can prevent infestations before they start. For mosquitoes and ticks, treatments in May before peak season are especially cost-effective.

How much does pest control cost in Washington County?

Average pest control costs in Washington County range from $150-$300 for a one-time treatment and $40-$70/month for ongoing quarterly service. Termite treatments are higher, typically $1,500-$5,000. Mosquito yard treatments run $75-$100 per application. Get free quotes from local pros through our platform.

Which pests are most common in Washington County?

Washington County sees all 7 tracked pest types seasonally: ticks (Apr-Oct), mosquitoes (May-Sep), ants (spring-summer, especially after rain), wasps (Jun-Sep), spiders (year-round, peak indoors in fall), mice/rats (peak Oct-Mar), and termites (swarm season Mar-Jun). Use our forecasts to see what's active right now.

How often should I get pest control in Washington County?

Most Wisconsin homeowners benefit from quarterly pest control service. During peak season (May-September), monthly treatments may be recommended for mosquitoes and ticks. Year-round quarterly service provides the best value for comprehensive protection against seasonal pests.