• Skip to primary navigation
  • Skip to main content
  • Skip to footer

Temp Scoreboard

Today’s feels-like temperatures in every state

Temp Scoreboard › California › Ontario

Feels-like temperature forecast and records

Ontario, CA

Caution today: feels like up to 84°.

Updated Friday 8:40 PM ET.

Forecast

84°feels likeFeels like 84 degrees, caution
TodayHigh 84°, low 60°
Feels like up to 84°
Caution
86°feels likeFeels like 86 degrees, caution
TomorrowHigh 86°, low 59°
Feels like up to 86°
Caution

This year so far, since Jan 1

Days at 90° or hotter102
Days at 100° or hotter30
Nights at freezing or colder0
Nights at 0° or colder0
Hottest day this year109°, Sep 9
Coldest night this year37°, Jan 27

Records since 1998

Hottest day118°, Sep 5, 2020
Coldest day25°, Jan 14, 2007

Nearby cities

  • Rancho CucamongaCAFeels like 59° to 80° today6 miles
  • PomonaCAFeels like 59° to 84° today9 miles
  • FontanaCAFeels like 60° to 80° today9 miles
  • CoronaCAFeels like 60° to 84° today13 miles
  • RiversideCAFeels like 58° to 83° today14 miles

More Ontario weather

Snow in OntarioRain in OntarioSunshine in Ontario

Forecast based on National Weather Service forecast data. Feels-like temperatures use the National Weather Service’s heat index and wind chill formulas. This year’s counts and records are from NOAA Regional Climate Centers for the Ontario International Airport station; records are the station’s own and may differ from official NWS city records. Temp Scoreboard is not affiliated with the National Weather Service or NOAA.

TempScoreboard.com

Footer

About Temp Scoreboard

Today’s and tomorrow’s feels-like temperatures, the hottest and coldest cities, and temperature records for 300+ US cities in every state, based on National Weather Service forecast data.

How it works →

More Scoreboards

Weather:
  • ❄️ Snow Scoreboard: Will it snow today?
  • ☔ Rain Scoreboard: Will it rain today?
  • ☀️ Sun Scoreboard: Will it be sunny today?

From Space:
  • 🪐 Space Scoreboard: Where is everything in space?
  • ⭐ Star Scoreboard: Where are the skies clear?

Quick Links

  • News
  • Follow on X: @TempScoreboard

Trending Cities: Phoenix, Las Vegas, Houston, Fairbanks, International Falls

This website may contain affiliate links, which means we may receive a small commission at no extra cost to you if you make a purchase.
Copyright © 2026 · Contact · Privacy · Terms