NPMA Released Fall and Winter Bug Forecast
The report projects that warmer autumn temperatures will extend pest activity across the United States.
Updated on Oct. 12, 2026 in Forecasts
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The National Pest Management Association released its Fall and Winter Bug Barometer on August 26, 2026. The forecast indicates that above-average temperatures will likely prolong the foraging and reproductive seasons for various pests nationwide.
Why it matters
Persistently warm conditions allow insects and rodents more time to remain active, increasing the risk of encounters as the seasons change. Understanding these regional projections helps homeowners prepare their properties against seasonal infestations.
The National Pest Management Association is tracking activity across 7 distinct geographic regions. Current projections show pests like mosquitoes and ticks will likely remain active beyond their usual periods due to summer-like temperatures.
The players
National Pest Management Association
This is a non-profit trade association that represents the professional pest management industry in the United States.
The details
Regional trends indicate that yellowjacket colonies will reach their peak in the Midwest and Ohio Valley, while increased rainfall in the Southwest may drive spiders and scorpions indoors. Rodent encounters are expected to climb in the Northwest as temperatures eventually cool, with mice capable of entering homes through openings as small as a dime.
Timeline
August 26, 2026: The National Pest Management Association released the Fall and Winter Bug Barometer.
Late October: The projected end of the period for pest population stabilization.
Seasonal Patterns
This report follows the long-term pattern established by the National Pest Management Association's annual seasonal Bug Barometer reports. These forecasts highlight how shifts in regional climate patterns directly influence the timing and intensity of annual pest cycles.
Homeowners should seal potential entry points using caulk and weatherstripping to prevent pests from moving indoors. It is also recommended to remove standing water from areas like gutters and plant saucers to discourage mosquito breeding.
The takeaway
Homeowners can mitigate risks by securing the exterior of their properties before cooler weather arrives. Proactive measures such as sealing small gaps remain the most effective strategy for preventing household rodent and insect issues.
Further reading
Learn more about seasonal climate impacts on local environments in our Forecasts section.
Source note: This article includes information reported by Fingerlakes1.
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