Pest Forecast for Janesville, Wisconsin

Janesville, Wisconsin · Rock County County · Pop. 65,615

51
/100
MODERATE OVERALL RISK

Janesville is currently experiencing moderate overall pest risk. Most active: Spiders (65), Termites (65), Ticks (65). Warm temperatures are supporting pest activity.

Last updated: June 6, 2026 · Source: Open-Meteo Professional Weather Data

Current Weather Conditions

77.3°F
Temperature
Feels like 84°F
79%
Humidity
Dewpoint 70.3°F
0.004"
Rain (24h)
7-day: 0.03"
10.1 mph
Wind
Gusts 17.2 mph
73.6°F
Soil Temperature
Active pest zone
34%
Soil Moisture
Moist
0"
Rain (3-day)
0.03"
Rain (7-day)

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

30-Day Weather Summary

71.2°F
Avg High
↑ vs avg
1.46"
Total Rainfall
8 rainy days

7-Day Weather Forecast

Today
Jun 6
86°
68°
23%
0.006" rain
Sun
Jun 7
79°
64°
13%
0.252" rain
Mon
Jun 8
73°
64°
88%
0.181" rain
Tue
Jun 9
84°
67°
60%
0.236" rain
Wed
Jun 10
88°
70°
17%
0.165" rain
17
Thu
Jun 11
89°
74°
19%
19

All Pest Risk Scores for Janesville

Spiders
Steady
65
/100
HIGH

Humidity at 79% attracts insects, drawing spiders.

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Termites
Steady
65
/100
HIGH

Warm (77.3°F) and humid (79%) soil supports termite activity.

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Ticks
Steady
65
/100
HIGH

Temps of 77.3°F are in the tick questing range.

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Wasps
Steady
60
/100
HIGH

Warm temps (77.3°F) fuel peak wasp foraging.

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Ants
Steady
50
/100
MODERATE

Warm conditions (77.3°F) keep ant foraging active.

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Mosquitoes
Steady
45
/100
MODERATE

Warm temps (77.3°F) support mosquito activity.

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Mice & Rats
Steady
5
/100
LOW

Mild temps (77.3°F) reduce indoor rodent pressure.

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3-Day Pest Outlook for Janesville

Pest TodaySunMon
Spiders
65 🟠68 🟠 +368 🟠 +3
Termites
65 🟠78 🟠 +1378 🟠 +13
Ticks
65 🟠70 🟠 +570 🟠 +5
Wasps
60 🟠65 🟠 +560 🟠
Ants
50 🟡65 🟠 +1550 🟡
Mosquitoes
45 🟡53 🟡 +853 🟡 +8
Mice & Rats
5 🟢0 🟢 -50 🟢 -5

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

Need Pest Control in Janesville?

Spiders risk is HIGH (65/100)

Professional treatment is recommended when scores are this high.

12 homeowners in Janesville have requested inspections

Pest Seasonality in Janesville

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

Beloit
51/100 🟡
Fort Atkinson
59/100 🟡
Stoughton
57/100 🟡
Cottage Grove
34/100 🟡
Oregon
31/100 🟡
Fitchburg
51/100 🟡
Sun Prairie
54/100 🟡
Madison
52/100 🟡

Pest FAQ for Janesville

What pests are active in Janesville right now?
Currently active pests in Janesville: Spiders (high risk, score 65/100), Termites (high risk, score 65/100), Ticks (high risk, score 65/100), Wasps (high risk, score 60/100), Ants (moderate risk, score 50/100), Mosquitoes (moderate risk, score 45/100). Scores are updated every 3 hours from real-time weather data.
Early spring (March-April) is the most effective time for preventive treatment in Janesville. 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.
Average pest control costs in Janesville 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.
Janesville 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.
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.

Janesville Pest Forecast by Type

Ticks
65/100 · high
Mosquitoes
45/100 · moderate
Ants
50/100 · moderate
Wasps
60/100 · high
Spiders
65/100 · high
Mice & Rats
5/100 · low
Termites
65/100 · high

Pest Control Articles for Janesville

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Which pests are becoming active across Wisconsin this spring, current risk scores for major cities, weather conditions to watch, and prevention tips for every pest type.

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Tick season timing in Wisconsin, how temperature and humidity drive tick activity, current tick scores for top cities, and evidence-based prevention strategies.

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How Weather Affects Pest Activity: The Science Behind Our Forecasts

The scientific relationship between weather conditions and pest behavior for all 7 tracked pest types, including temperature thresholds, humidity effects, rainfall impact, and degree-day models.

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