Weather forecast for todayRialto, CA

Weather forecast for today

Current condition 1:20 pm PDT

  • 77°F
  • Feels like:
    77°F
Partly Cloudy
Partly Cloudy
  • Precipitation: 0"
  • Wind: 11mphWSW 240°
  • Humidity: 39%
  • Dewpoint: 50°F
  • Pressure: 29.82"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
At the moment, in Rialto, clouds are drifting across, occasionally revealing the sun.
The temperature is a warm 77°F. The current temperature is almost at the maximum of today's anticipated 78.8°F.

Wednesday Oct 21, 2026

  • 79°F
  • 59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0.71"
  • Wind: 12mphSW 236°
  • Humidity: 48%
  • UV index: 5
  • Sunrise: 6:59 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
On Wednesday, October 21, a mix of clouds and blue sky is expected.
The chance of rainfall for today is low. However, predicted precipitation will be moderate. The forecasted temperature range extends from a high of a moderately hot 78.8°F to a low of a refreshing 59°F.
This expected maximum temperature is expected to mirror October's typical high of 77.9°F.
Sunrise was at 6:59 am and sunset will be at 6:08 pm; the daylight will last for 11h and 8min.

Hourly overview

Hourly temperatures

Warmest period: 2 pm - 4 pm 75°C.
Coldest hour: 11 pm 64°C.

Chance of precipitation

Highest chance: 11 pm 71%.

Hourly weather forecast

  • 2 pm
  • 75°F
  • Feels like:
    75°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 11mphWSW 236°
  • Humidity: 44%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 75°F
  • Feels like:
    75°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 11mphSW 234°
  • Humidity: 46%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 75°F
  • Feels like:
    75°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 9mphSW 235°
  • Humidity: 47%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 73°F
  • Feels like:
    73°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 9mphWSW 238°
  • Humidity: 51%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 70°F
  • Feels like:
    70°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 7mphSW 233°
  • Humidity: 56%
  • Pressure: 29.8"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:08 pm
  • 7 pm
  • 68°F
  • Feels like:
    68°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 6mphSW 226°
  • Humidity: 62%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 68°F
  • Feels like:
    68°F
Showers
Showers
  • Precip. probability: 36%
  • Precipitation: 0.04"
  • Wind: 6mphSSW 208°
  • Humidity: 66%
  • Pressure: 29.83"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 66°F
  • Feels like:
    66°F
Showers
Showers
  • Precip. probability: 47%
  • Precipitation: 0.04"
  • Wind: 4mphSSE 166°
  • Humidity: 70%
  • Pressure: 29.85"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 10 pm
  • 66°F
  • Feels like:
    66°F
Showers
Showers
  • Precip. probability: 45%
  • Precipitation: 0.08"
  • Wind: 6mphSSE 165°
  • Humidity: 76%
  • Pressure: 29.85"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
  • 11 pm
  • 64°F
  • Feels like:
    64°F
Rain
Rain
  • Precip. probability: 71%
  • Precipitation: 0.16"
  • Wind: 6mphSSE 167°
  • Humidity: 78%
  • Pressure: 29.85"Hg
  • Visibility: 5mi
  • UV index: 0
  • ▼
For the rest of the day, a combination of overcast and rain-filled weather is expected.
Rainfall is expected from 8 pm to 11 pm. With moderate precipitation of 0.16", most rainfall is expected at 11 pm.
The temperature will vary between a minimum of 64.4°F and a maximum of 75.2°F. The warmest part of the day will be from 2 pm to 4 pm.
The high temperature is expected to be resembling October's usual value of 77.9°F. The night temperature will be also resembling the standard October low of 56.1°F.
Updated: Oct 21, 2026 @ 20:20:54 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (1:20 pm PDT) is 77°F.

On Wednesday, in Rialto, changing cloud patterns will allow for periods of sunshine.

Moderate precipitation of 0.71" is forecasted in Rialto. The chance of rainfall is low at 17%.

Today, the highest temperature will be 78.8°F, while the lowest temperature will be 59°F.
The maximum temperature will be in line with the average highest temperature of 77.9°F in October. The lowest temperature will be also in line with the average low of 56.1°F.

On Wednesday, in Rialto, sunrise was at 6:59 am and sunset will be at 6:08 pm (PDT).

Today, the daylight will last for 11h and 8min.