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County overview

Termites in San Bernardino County, CA

Today's termite swarm-risk score for all 47 cities and towns in San Bernardino County, highest first. Tap any place for its full forecast and local inspection help.

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Cities
47
Pressure
Very Heavy
Highest today
57

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Termites in San Bernardino County

The species established here. Each swarms in its own season.

Subterranean termiteFormosan termiteDrywood termiteDesert subterranean termite

All cities in San Bernardino County

47 places, highest swarm risk first.

  • Fontana57
  • Bloomington55
  • Rialto55
  • Colton53
  • San Bernardino53
  • Grand Terrace50
  • Highland50
  • Redlands50
  • Mentone47
  • Loma Linda46
  • Muscoy42
  • Needles34
  • Yucaipa34
  • Big River33
  • Crestline31
  • Oak Hills31
  • Victorville30
  • Apple Valley29
  • Hesperia29
  • Mountain View Acres29
  • Spring Valley Lake29
  • Adelanto28
  • Twentynine Palms28
  • Chino Hills27
  • Lucerne Valley27
  • Yucca Valley27
  • Chino26
  • Joshua Tree26
  • Morongo Valley26
  • Silver Lakes26
  • Big Bear City25
  • Lake Arrowhead25
  • Montclair25
  • Ontario25
  • Upland25
  • Homestead Valley24
  • Rancho Cucamonga24
  • Lenwood21
  • Phelan21
  • Barstow20
  • Piñon Hills20
  • Big Bear Lake19
  • Fort Irwin18
  • Searles Valley17
  • Wrightwood16
  • San Antonio Heights15
  • Running Springs12

All termite coverage in California →

About these scores:each city's number is a daily 0 to 100 index of how favorable today's weather is for a termite swarm flight, from each established species' swarm season and live weather. It is not a sign that a home has termites; only an inspection can confirm one.

Last updated July 20, 2026. TermiteZone refreshes local swarm conditions daily.

How to use this. TermiteZone is a defensible forecast of swarm conditions for general information, not a guarantee that termites are or are not present. Only an in-person inspection can confirm an infestation. For the basics of termite control, see the EPA termite guide.

Sources: Open-Meteo (live weather) · ICC Termite Infestation Probability Map (IRC) · University of Florida IFAS (termite species) · LSU AgCenter (Formosan termite) · UC IPM (drywood + western termites) · U.S. Census Bureau (places)

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