California · NWS LOX office

Monrovia, CA weather

It is 61°F at SANTA FE DAM as of Oct 28, 1:57 AM PDT. Overnight: Patchy Fog, low near 58°F. Forecast from the National Weather Service, issued Oct 28, 1:41 AM PDT.

Updated Oct 28, 2:23 AM PDT (snapshot)

Current conditions

Temperature

61°F

Patchy Fog

Wind

NE 4 mph, gusts 9 mph

Humidity 70% · dew point 51°F

Pressure · visibility

—

Visibility —

Observed at SANTA FE DAM (STFC1), Oct 28, 1:57 AM PDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Monrovia forecast zone right now.

Around the NWS LOX forecast area

1 active alert covers zones served by the LOX office near Monrovia:

  • Coastal Flood Advisory

From the alert snapshot of Oct 28, 2026, 5:12 AM EDT. California has 8 active alerts: see them all.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Monrovia (local time)
TimeTempForecastPrecip. chanceWind
Wed 4 AM55°FPatchy Fog0%S 5 mph
Wed 5 AM57°FPatchy Fog0% 0 mph
Wed 6 AM55°FPatchy Fog0% 0 mph
Wed 7 AM55°FPatchy Fog0% 0 mph
Wed 8 AM57°FPatchy Fog0% 0 mph
Wed 9 AM61°FPatchy Fog0% 0 mph
Wed 10 AM63°FPatchy Fog0% 0 mph
Wed 11 AM67°FMostly Sunny0% 0 mph
Wed 12 PM70°FMostly Sunny0% 0 mph
Wed 1 PM74°FMostly Sunny0% 0 mph
Wed 2 PM76°FMostly Sunny0%SSW 5 mph
Wed 3 PM78°FMostly Sunny0%SSW 5 mph
Wed 4 PM76°FMostly Sunny0%SSW 5 mph
Wed 5 PM75°FMostly Sunny0%SSW 5 mph
Wed 6 PM68°FPartly Cloudy0%SSW 5 mph
Wed 7 PM66°FPartly Cloudy0%SSW 5 mph
Wed 8 PM64°FPartly Cloudy0% 0 mph
Wed 9 PM63°FPartly Cloudy0% 0 mph
Wed 10 PM61°FPartly Cloudy0% 0 mph
Wed 11 PM61°FMostly Cloudy0% 0 mph
Thu 12 AM59°FMostly Cloudy0% 0 mph
Thu 1 AM59°FMostly Cloudy0% 0 mph
Thu 2 AM59°FMostly Cloudy0% 0 mph
Thu 3 AM58°FMostly Cloudy0% 0 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Monrovia can differ.

7-day forecast

Overnight

Low 58°F

Patchy fog after 5am. Cloudy, with a low around 58. Southeast wind 0 to 5 mph.

Wednesday

High 77°F·Low 58°F

Patchy fog before 11am. Partly sunny, with a high near 77. South southeast wind 0 to 5 mph.

Wednesday Night: Mostly cloudy, with a low around 58. South southeast wind 0 to 5 mph.

Thursday

High 75°F·Low 58°F

Partly sunny, with a high near 75. South southeast wind 0 to 5 mph.

Thursday Night: Mostly cloudy, with a low around 58. South wind 0 to 5 mph.

Friday

High 71°F·Low 56°F

Partly sunny, with a high near 71.

Friday Night: Mostly cloudy, with a low around 56.

Saturday

High 69°F·Low 57°F

A chance of rain showers after 11am. Mostly cloudy, with a high near 69.

Saturday Night: Rain showers likely. Cloudy, with a low around 57.

Sunday

High 71°F·Low 54°F

A chance of rain showers before 4pm. Partly sunny, with a high near 71.

Sunday Night: Mostly clear, with a low around 54.

Monday

High 75°F·Low 56°F

Sunny, with a high near 75.

Monday Night: Mostly clear, with a low around 56.

Tuesday

High 76°F

Mostly sunny, with a high near 76.

Nearby cities

Larger cities in the area

Other cities in Los Angeles County

See every city we cover in California, or check all active alerts.

About this forecast

Forecast office
Monrovia is served by the National Weather Service LOX forecast office, forecast zone CAZ548, county zone CAC037.
Location used
The Census Bureau's internal point for Monrovia (34.1640, -117.9846), in Los Angeles County. Population: 37,787 (2024 estimate), number 211 of the 296 California cities on this site.
Radar
Nearest NWS radar: KSOX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/34.164,-117.9846 (forecast issued Oct 28, 1:41 AM PDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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