The MosquitoCast Field Guide

Short, plain-English explanations of what actually drives mosquito activity, the same signals behind the live forecast.

• How Long After Rain Do Mosquitoes Come Out?

  Mosquitoes don’t swarm the moment rain stops. The biting wave usually arrives 4 to 14 days later. Here’s why, and how the rainfall lag works.

• At What Temperature Are Mosquitoes Most Active?

  Mosquitoes are most active around 80°F, ramp up above 50°F, and shut down in cold and extreme heat. Here’s the full range, and why overnight lows matter most.

• Why Are Mosquitoes So Bad Right Now?

  A bad mosquito night is never one thing. It’s standing water from last week’s rain, warm humid air, and light wind lining up. Here’s what really drives it.