Live Weather & Forecast
Weather in Rialto
California, United States · Real-time conditions & 3-day outlook
17°C
Feels like 17°C
63°F / Feels 63°F
Partly cloudy
Rialto, California
🌞 Daytime
Updated: 2026-04-13 14:30
Humidity
39%
Wind
9 km/h SSW
Wind Gust
11.2 km/h
Pressure
1017 mb
Visibility
11 km
UV Index
4.9
(Moderate)
Precipitation
0 mm
Cloud Cover
75%
Dew Point
6°C
Wind Degree
206°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
216.9 μg/m³
NO₂
22.3 μg/m³
O₃
75 μg/m³
SO₂
6.5 μg/m³
PM 2.5
10.6 μg/m³
PM 10
11.9 μg/m³
Today's Hourly Forecast
24-hour breakdown for Rialto, California
12 AM
11°
Clear
1 AM
10°
Clear
2 AM
10°
Partly Cloudy
3 AM
9°
Partly Cloudy
4 AM
9°
Clear
5 AM
9°
Clear
6 AM
9°
Clear
7 AM
10°
Sunny
8 AM
11°
Patchy rain nearby
9 AM
12°
Partly Cloudy
10 AM
13°
Patchy rain nearby
11 AM
14°
Cloudy
12 PM
14°
Partly Cloudy
1 PM
15°
Cloudy
2 PM
17°
Partly cloudy
3 PM
17°
Partly Cloudy
4 PM
17°
Patchy rain nearby
5 PM
16°
Cloudy
6 PM
17°
Partly Cloudy
7 PM
15°
Sunny
8 PM
13°
Clear
9 PM
12°
Patchy rain nearby
10 PM
11°
Clear
11 PM
10°
Clear
3-Day Forecast
Daily overview for Rialto, California
Today
Partly Cloudy
17°
/
9°
🌧️ 0% chance of rain
💧 Avg. humidity: 69%
💨 Max wind: 21.2 km/h
🌧️ Total precip: 0.05 mm
☀️ UV Index: 1
🌅 Sunrise: 06:21 AM
🌇 Sunset: 07:20 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Sunny
22°
/
8°
🌧️ 0% chance of rain
💧 Avg. humidity: 64%
💨 Max wind: 14 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:19 AM
🌇 Sunset: 07:21 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Partly Cloudy
20°
/
10°
🌧️ 0% chance of rain
💧 Avg. humidity: 65%
💨 Max wind: 15.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:18 AM
🌇 Sunset: 07:21 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Rialto
Plan your trip to Rialto, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Rialto?
Current conditions in Rialto: Partly cloudy, temperature 17°C, humidity 39%.
What is the best time to visit Rialto?
The best time to visit Rialto is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Rialto?
Rialto is located at approximately 34.1° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Rialto?
The wettest period in Rialto is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Rialto?
For visits to Rialto during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Rialto in?
Rialto is located in United States, in the state of California.
What are the public holidays in Rialto in 2026?
View the 2026 public holidays for Rialto on our Holidays page.
What are the GPS coordinates used for the weather forecast in Rialto?
The weather forecast for Rialto uses coordinates 34.1064, -117.3703.