How Insects Predict Weather

Can Insects Predict the Weather?

By The Old Farmer's Almanac
Garden Spider

This huge spider is devouring a bumble bee

Gina Hobbs

Next time you see an ant or a spider, check out what it’s doing! It could let you know something about the upcoming weather. Check out our weather proverbs and prognostics about insects.

  • If ants their walls do frequent build, rain will from the clouds be spilled.
  • Ants are busy, gnats bite, crickets sing louder than usual, spiders come down from their webs, and flies gather in houses just before rain.
  • When bees to distance wing their flight, days are warm and skies are bright; But when their flight ends near their come, stormy weather is sure to come.
  • Fireflies in great numbers indicates fair weather.
  • When hornets build their nests near the ground, expect a cold and early winter.
  • When cicadas are heard, dry weather will follow, and frost will come in six weeks.
  • When spiders’ webs in air do fly, the spell will soon be very dry.
  • Spiders in motion indicate rain.
  • When spiderwebs are wet with dew that soon dries, expect a fine day.
  • Spiderwebs floating at autumn sunset bring a night frost, this you may bet.
  • Leeches kept in glass jars are active just before rain.

Observe reptiles as weather predictors, too!

  • The louder the frogs, the more the rain.
  • Frogs singing in the evening indicates fair weather the next day.
  • Hang up a snakeskin and it will bring rain.

Did we miss any? Share your favorite proverbs and sayings below!

And see more about how animals predict the weather!

Reader Comments

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coming rain

My granny always said when the backs of the leaves on the trees begin to show, it's a sure-fire sign of rain.

Insects and weather

Here in the Midwest I was taught that count 90 days from the first cicadas will be our first frost.


If it thunders before 7;00 (am) it will rain before 11:00


If it rains the first Sunday in June, it will rain every Sunday in the month.

leaves on trees

I was always told that if the leaves on the trees seem to turn backwards a storm was coming.


Is there some saying about peepers; hearing them three times before the warm weather stays ? I can't remember just how it goes.

peepers in spring

I have always gone by the rule that a frost between hearing them three times,that spring has sprung.

The fog days of August count

The fog days of August count the days if snow, the thicker the fog the deeper the snow

The thicker the the trees bark come fall the colder winter will be felt by all

Birds nest during the rain the sooner it will pass but birds flying about in the rain the longer it will be

A rain before 7 will be gone

A rain before 7 will be gone by 11

When turtles cross the road,

When turtles cross the road, it will rain the next day. The more turtles seen, the harder the rain.

When the dew is on the grass,

When the dew is on the grass, rain will never come to pass.