National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Ontario International Airport (KONT)

Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.

Mostly Cloudy

57°F

14°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 14 Nov 03:35 AM PST
Extended Forecast for

3 Miles SSE Rancho Cucamonga CA

  • Overnight

    Overnight: Showers, mainly before 4am. Low around 54. Southwest wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Showers

  • Saturday

    Saturday: A slight chance of showers before 10am. Mostly sunny, with a high near 68. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.

    High: 68 °F

    Slight Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51. North wind around 5 mph becoming east in the evening.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 70. Northeast wind around 5 mph becoming calm.

    High: 70 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after 4pm. Partly sunny, with a high near 68. Chance of precipitation is 30%.

    High: 68 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly between 10pm and 4am. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.

    Low: 51 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers before 10am. Mostly sunny, with a high near 64.

    High: 64 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers, mainly before 4am. Low around 54. Southwest wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A slight chance of showers before 10am. Mostly sunny, with a high near 68. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 51. North wind around 5 mph becoming east in the evening.
Sunday
Mostly sunny, with a high near 70. Northeast wind around 5 mph becoming calm.
Sunday Night
Partly cloudy, with a low around 52. Calm wind.
Monday
A chance of showers after 4pm. Partly sunny, with a high near 68. Chance of precipitation is 30%.
Monday Night
Showers likely, mainly between 10pm and 4am. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Tuesday
A chance of showers before 10am. Mostly sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 64.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 47.
Thursday
Showers likely. Mostly cloudy, with a high near 62.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 45.
Friday
A slight chance of showers. Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Rancho Cucamonga CA
 34.09°N 117.53°W (Elev. 1106 ft)
Last Update:
12:32 am PST Nov 14, 2026
Forecast Valid:
3am PST Nov 14, 2026-6pm PST Nov 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation