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Weather in Rialto, United States 🇺🇸

Current Weather in Rialto

Sunny
43°C
Feels like 41°C. Sunny.
🌬️ 16 km/h WNW
💧 18% Humidity
🧭 1012 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 9.1
🌡️ Dew Point: 13°C
🌅 Sunrise: 06:16 AM
🌇 Sunset: 07:28 PM
Map Overlays:

In Rialto right now it is 43°C and sunny, feeling like 41°C. Humidity sits at 18% and winds are near 16 km/h, and the UV index is 9 (very high). The next few days in Rialto look set for about 22°C up to 43°C.

Hourly Forecast for Rialto

15:00
Sunny
42°
0%
16:00
Sunny
42°
0%
17:00
Sunny
40°
0%
18:00
Sunny
37°
0%
19:00
Sunny
34°
0%
20:00
Clear
31°
1%
21:00
Clear
31°
1%
22:00
Clear
30°
1%
23:00
Clear
29°
1%
00:00
Clear
28°
1%
01:00
Clear
28°
1%
02:00
Clear
27°
1%
03:00
Clear
27°
1%
04:00
Clear
26°
1%
05:00
Clear
26°
1%
06:00
Clear
26°
2%
07:00
Sunny
28°
2%
08:00
Sunny
27°
1%
09:00
Sunny
29°
1%
10:00
Sunny
31°
1%
11:00
Sunny
33°
0%
12:00
Sunny
35°
0%
13:00
Sunny
36°
0%
14:00
Sunny
37°
0%

14-Day Forecast for Rialto

Sat, Aug 22
Sunny Sunny
43° / 22°
Sun, Aug 23
Sunny Sunny
38° / 26°
Mon, Aug 24
Sunny Sunny
37° / 26°
Tue, Aug 25
Sunny Sunny
39° / 27°
Wed, Aug 26
Sunny Sunny
39° / 28°
Thu, Aug 27
Overcast Overcast
37° / 28°
Fri, Aug 28
Overcast Overcast
38° / 28°
Sat, Aug 29
Sunny Sunny
38° / 27°
Sun, Aug 30
Sunny Sunny
39° / 28°
Mon, Aug 31
Sunny Sunny
37° / 25°
Tue, Sep 01
Sunny Sunny
33° / 21°
Wed, Sep 02
Sunny Sunny
33° / 21°
Thu, Sep 03
Overcast Overcast
36° / 26°
Fri, Sep 04
Overcast Overcast
35° / 27°

Additional Forecasts for Rialto

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 127.0 μg/m³
O₃ (Ozone) 130.0 μg/m³
NO₂ (Nitrogen Dioxide) 1.1 μg/m³
SO₂ (Sulphur Dioxide) 1.1 μg/m³
PM2.5 (Fine particles) 6.8 μg/m³
PM10 (Coarse particles) 8.2 μg/m³

Historical Weather

Weather Forecasts for Other Cities in United States

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Best Time to Be Outside in Rialto Today

The most comfortable window in Rialto today looks like 17:00 to 20:00, when it is around 37°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Rialto

What is the temperature in Rialto right now?

It is currently 43°C (109°F) in Rialto, sunny (feels like 41°C).

What's the weather like in Rialto right now?

Conditions in Rialto right now: Sunny, humidity 18%, wind 16 km/h WNW.

What is today's forecast for Rialto?

Today in Rialto: high 43°C, low 22°C, sunny. Chance of rain: 1%.

What is the 7-day weather forecast for Rialto?

Daily highs and lows for Rialto:

  • 2026-08-22: 43°C / 22°C
  • 2026-08-23: 38°C / 26°C
  • 2026-08-24: 37°C / 26°C
  • 2026-08-25: 39°C / 27°C
  • 2026-08-26: 39°C / 28°C
  • 2026-08-27: 37°C / 28°C
  • 2026-08-28: 38°C / 28°C
Is it going to rain in Rialto today?

There is a 1% chance of rain in Rialto today.

What is the wind speed in Rialto right now?

Wind in Rialto is currently 16 km/h (10 mph) from the WNW.

What is the UV index in Rialto right now?

The UV index in Rialto is currently 9.1 (very high). Sun protection is recommended when the index is 3 or higher.

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