Conditions TodayMaps

Tick & Mosquito for Ontario, CA

Good

Mild conditions for ticks and mosquitoes in Ontario, CA parks today

Tick: None · Mosquito: Low · 89°F, 13% humidity

Pretty low
light bug activity today
  • Tick riskNone — 89°F, 13% humidity
  • Mosquito riskLow — wind 11 mph, precip 0mm
  • ProtectionLight precautions for tall grass and wooded areas
  • Where this appliesParks, wooded trails, tall grass, and near standing water — not sidewalks or indoor spaces
  • Tick checkCheck within 2 hours of being outside — especially knees, groin, armpits, scalp
  • SeasonPeak tick season: May–July (nymphs) and Oct–Nov (adults). Mosquito: summer through first frost.

Data as of Oct 18, 2026

Coming Up

SunLowGood
FriLowGood
SatLowGood
SunLowGood
MonModerateOkay
TueModerateOkay
WedHighPoor

FAQ

Nearby Cities