What is the weather in Rialto right now?

Current weather in Rialto is clear sky.

Where can I find the hourly weather forecast for Rialto?

This page shows hourly weather forecast for Rialto, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Rialto updated regularly?

Weather data for Rialto is updated regularly with the latest available observations and forecasts.

Now · 5:21 AM

Rialto Weather & Hourly Forecast

United States · California · 92376

69°F

Clear night

Feels like: 73°F

💧 Humidity 81% 🌡 Pressure 29.85 inHg 💨 Wind 1 mph 👁 Visibility 17.8 mi ☁ Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Rialto

Today

6:00 AM

Clear night

68° 💧 None 💨 1 mph H 80%29.85 inHg

9:00 AM

Sunny

76° 💧 None 💨 1 mph H 51%29.85 inHg

12:00 PM

Sunny

86° 💧 None 💨 3 mph H 36%29.83 inHg

3:00 PM

Sunny

92° 💧 None 💨 7 mph H 27%29.74 inHg

6:00 PM

Sunny

84° 💧 None 💨 9 mph H 43%29.74 inHg

9:00 PM

Clear night

74° 💧 None 💨 2 mph H 64%29.85 inHg

Tomorrow

12:00 AM

Clear night

72° 💧 None 💨 2 mph H 68%29.85 inHg

3:00 AM

Clear night

69° 💧 None 💨 1 mph H 76%29.85 inHg

6:00 AM

Clear night

67° 💧 None 💨 1 mph H 79%29.88 inHg

9:00 AM

Sunny

74° 💧 None 💨 1 mph H 54%29.91 inHg

12:00 PM

Sunny

84° 💧 None 💨 4 mph H 38%29.91 inHg

3:00 PM

Sunny

87° 💧 None 💨 8 mph H 32%29.83 inHg

6:00 PM

Sunny

79° 💧 None 💨 9 mph H 51%29.85 inHg

9:00 PM

Clear night

71° 💧 None 💨 4 mph H 67%29.91 inHg

Wednesday

12:00 AM

Clear night

68° 💧 None 💨 2 mph H 76%29.94 inHg

3:00 AM

Clear night

66° 💧 None 💨 1 mph H 82%29.94 inHg

Today

6:00 AM

Clear night

68° 💧 None 💨 1 mph H 80%29.85 inHg

7:00 AM

Sunny

68° 💧 None 💨 1 mph H 76%29.85 inHg

8:00 AM

Sunny

72° 💧 None 💨 1 mph H 62%29.85 inHg

9:00 AM

Sunny

76° 💧 None 💨 1 mph H 51%29.85 inHg

10:00 AM

Sunny

79° 💧 None 💨 2 mph H 47%29.85 inHg

11:00 AM

Sunny

83° 💧 None 💨 3 mph H 42%29.85 inHg

12:00 PM

Sunny

86° 💧 None 💨 3 mph H 36%29.83 inHg

1:00 PM

Sunny

89° 💧 None 💨 4 mph H 31%29.80 inHg

2:00 PM

Sunny

91° 💧 None 💨 6 mph H 29%29.77 inHg

3:00 PM

Sunny

92° 💧 None 💨 7 mph H 27%29.74 inHg

4:00 PM

Sunny

91° 💧 None 💨 8 mph H 30%29.74 inHg

5:00 PM

Sunny

89° 💧 None 💨 10 mph H 37%29.74 inHg

6:00 PM

Sunny

84° 💧 None 💨 9 mph H 43%29.74 inHg

7:00 PM

Clear night

80° 💧 None 💨 7 mph H 51%29.77 inHg

8:00 PM

Clear night

76° 💧 None 💨 5 mph H 59%29.83 inHg

9:00 PM

Clear night

74° 💧 None 💨 2 mph H 64%29.85 inHg

10:00 PM

Clear night

74° 💧 None 💨 2 mph H 65%29.85 inHg

11:00 PM

Clear night

73° 💧 None 💨 2 mph H 66%29.85 inHg

Tomorrow

12:00 AM

Clear night

72° 💧 None 💨 2 mph H 68%29.85 inHg

1:00 AM

Clear night

71° 💧 None 💨 2 mph H 72%29.85 inHg

2:00 AM

Clear night

70° 💧 None 💨 1 mph H 74%29.85 inHg

3:00 AM

Clear night

69° 💧 None 💨 1 mph H 76%29.85 inHg

4:00 AM

Clear night

68° 💧 None 💨 1 mph H 77%29.85 inHg

5:00 AM

Clear night

67° 💧 None 💨 1 mph H 79%29.85 inHg

6:00 AM

Clear night

67° 💧 None 💨 1 mph H 79%29.88 inHg

7:00 AM

Sunny

67° 💧 None 💨 1 mph H 79%29.88 inHg

8:00 AM

Sunny

70° 💧 None 💨 0 mph H 66%29.91 inHg

9:00 AM

Sunny

74° 💧 None 💨 1 mph H 54%29.91 inHg

10:00 AM

Sunny

77° 💧 None 💨 2 mph H 48%29.91 inHg

11:00 AM

Sunny

81° 💧 None 💨 3 mph H 44%29.91 inHg

12:00 PM

Sunny

84° 💧 None 💨 4 mph H 38%29.91 inHg

1:00 PM

Sunny

86° 💧 None 💨 5 mph H 32%29.88 inHg

2:00 PM

Sunny

87° 💧 None 💨 6 mph H 30%29.85 inHg

3:00 PM

Sunny

87° 💧 None 💨 8 mph H 32%29.83 inHg

4:00 PM

Sunny

86° 💧 None 💨 9 mph H 37%29.83 inHg

5:00 PM

Sunny

83° 💧 None 💨 10 mph H 45%29.83 inHg

6:00 PM

Sunny

79° 💧 None 💨 9 mph H 51%29.85 inHg

7:00 PM

Clear night

75° 💧 None 💨 6 mph H 59%29.85 inHg

8:00 PM

Clear night

73° 💧 None 💨 4 mph H 64%29.88 inHg

9:00 PM

Clear night

71° 💧 None 💨 4 mph H 67%29.91 inHg

10:00 PM

Clear night

70° 💧 None 💨 3 mph H 70%29.94 inHg

11:00 PM

Clear night

69° 💧 None 💨 3 mph H 73%29.94 inHg

Wednesday

12:00 AM

Clear night

68° 💧 None 💨 2 mph H 76%29.94 inHg

1:00 AM

Clear night

68° 💧 None 💨 1 mph H 78%29.94 inHg

2:00 AM

Clear night

67° 💧 None 💨 1 mph H 80%29.94 inHg

3:00 AM

Clear night

66° 💧 None 💨 1 mph H 82%29.94 inHg

4:00 AM

Clear night

65° 💧 None 💨 1 mph H 85%29.94 inHg

5:00 AM

Clear night

64° 💧 None 💨 1 mph H 87%29.94 inHg

6:00 AM

Clear night

64° 💧 None 💨 0 mph H 88%29.94 inHg

7:00 AM

Sunny

64° 💧 None 💨 1 mph H 88%29.97 inHg

8:00 AM

Mostly sunny

66° 💧 None 💨 1 mph H 79%30.00 inHg

9:00 AM

Mostly sunny

70° 💧 None 💨 1 mph H 67%30.00 inHg

10:00 AM

Mostly sunny

73° 💧 None 💨 2 mph H 59%30.00 inHg

11:00 AM

Sunny

76° 💧 None 💨 2 mph H 51%29.97 inHg

12:00 PM

Sunny

80° 💧 None 💨 3 mph H 41%29.97 inHg

1:00 PM

Sunny

82° 💧 None 💨 4 mph H 34%29.94 inHg

2:00 PM

Sunny

84° 💧 None 💨 6 mph H 31%29.91 inHg

3:00 PM

Sunny

84° 💧 None 💨 7 mph H 33%29.91 inHg

4:00 PM

Sunny

83° 💧 None 💨 9 mph H 36%29.91 inHg

5:00 PM

Sunny

81° 💧 None 💨 10 mph H 40%29.88 inHg

8:00 PM

Clear night

72° 💧 None 💨 7 mph H 66%29.94 inHg

11:00 PM

Clear night

68° 💧 None 💨 4 mph H 77%30.00 inHg

Thursday

2:00 AM

Clear night

66° 💧 None 💨 2 mph H 83%30.03 inHg

5:00 AM

Clear night

64° 💧 None 💨 1 mph H 90%30.00 inHg

8:00 AM

Sunny

66° 💧 None 💨 2 mph H 83%30.06 inHg

11:00 AM

Sunny

77° 💧 None 💨 2 mph H 50%30.03 inHg

2:00 PM

Sunny

86° 💧 None 💨 6 mph H 34%29.97 inHg

5:00 PM

Sunny

84° 💧 None 💨 9 mph H 40%29.94 inHg

8:00 PM

Clear night

74° 💧 None 💨 7 mph H 56%29.97 inHg

11:00 PM

Clear night

70° 💧 None 💨 3 mph H 67%30.03 inHg

Friday

2:00 AM

Clear night

67° 💧 None 💨 1 mph H 76%30.00 inHg

5:00 AM

Clear night

64° 💧 None 💨 1 mph H 85%30.00 inHg

8:00 AM

Sunny

67° 💧 None 💨 1 mph H 76%30.03 inHg

11:00 AM

Sunny

79° 💧 None 💨 2 mph H 43%30.00 inHg

2:00 PM

Sunny

88° 💧 None 💨 6 mph H 28%29.91 inHg

5:00 PM

Sunny

86° 💧 None 💨 9 mph H 32%29.85 inHg

8:00 PM

Clear night

76° 💧 None 💨 6 mph H 48%29.91 inHg

11:00 PM

Clear night

71° 💧 None 💨 2 mph H 61%29.91 inHg

Saturday

2:00 AM

Clear night

67° 💧 None 💨 1 mph H 72%29.91 inHg

5:00 AM

Clear night

64° 💧 None 💨 1 mph H 81%29.91 inHg

8:00 AM

Sunny

65° 💧 None 💨 0 mph H 79%29.91 inHg

11:00 AM

Sunny

79° 💧 None 💨 3 mph H 41%29.88 inHg

2:00 PM

Sunny

90° 💧 None 💨 8 mph H 30%29.83 inHg

5:00 PM

Sunny

88° 💧 None 💨 10 mph H 33%29.77 inHg

11:00 PM

Clear night

71° 💧 None 💨 3 mph H 64%29.88 inHg

Sunday

5:00 AM

Clear night

64° 💧 None 💨 1 mph H 84%29.88 inHg

11:00 AM

Sunny

77° 💧 None 💨 3 mph H 53%29.91 inHg

5:00 PM

Sunny

86° 💧 None 💨 10 mph H 40%29.80 inHg

11:00 PM

Clear night

70° 💧 None 💨 4 mph H 77%29.94 inHg

Monday

5:00 AM

Mostly clear night

66° 💧 None 💨 2 mph H 89%29.91 inHg

11:00 AM

Mostly sunny

81° 💧 None 💨 4 mph H 53%29.91 inHg

5:00 PM

Sunny

87° 💧 None 💨 10 mph H 43%29.80 inHg

11:00 PM

Clear night

71° 💧 None 💨 4 mph H 75%29.91 inHg

Tuesday

5:00 AM

Mostly clear night

67° 💧 None 💨 2 mph H 91%29.85 inHg

11:00 AM

Mostly sunny

81° 💧 None 💨 4 mph H 55%29.85 inHg

5:00 PM

Sunny

84° 💧 None 💨 10 mph H 50%29.74 inHg

11:00 PM

Clear night

70° 💧 None 💨 5 mph H 80%29.83 inHg

Wednesday

5:00 AM

Clear night

67° 💧 None 💨 2 mph H 87%29.80 inHg

11:00 AM

Partly cloudy

74° 💧 None 💨 2 mph H 68%29.88 inHg

5:00 PM

Partly cloudy

75° 💧 None 💨 10 mph H 65%29.83 inHg

11:00 PM

Partly cloudy night

70° 💧 None 💨 5 mph H 73%29.91 inHg

Thursday

5:00 AM

Mostly cloudy night

67° 💧 None 💨 3 mph H 79%29.91 inHg

11:00 AM

Mostly cloudy

72° 💧 None 💨 5 mph H 65%29.97 inHg

5:00 PM

Sunny

77° 💧 None 💨 8 mph H 55%29.88 inHg

11:00 PM

Mostly clear night

67° 💧 None 💨 4 mph H 76%29.97 inHg

Friday

5:00 AM

Mostly clear night

64° 💧 None 💨 0 mph H 85%29.97 inHg

11:00 AM

Sunny

75° 💧 None 💨 3 mph H 55%29.97 inHg

5:00 PM

Sunny

84° 💧 None 💨 9 mph H 40%29.85 inHg

11:00 PM

Clear night

69° 💧 None 💨 3 mph H 72%29.94 inHg

Saturday

5:00 AM

Clear night

63° 💧 None 💨 1 mph H 91%29.94 inHg

11:00 AM

Sunny

80° 💧 None 💨 4 mph H 48%29.97 inHg

5:00 PM

Sunny

91° 💧 None 💨 8 mph H 33%29.85 inHg

11:00 PM

Overcast night

74° 💧 None 💨 2 mph H 67%29.94 inHg

Sunday

5:00 AM

Overcast night

68° 💧 None 💨 2 mph H 86%29.91 inHg

11:00 AM

Mostly sunny

86° 💧 None 💨 3 mph H 34%29.91 inHg

5:00 PM

Sunny

94° 💧 None 💨 9 mph H 27%29.80 inHg

11:00 PM

Clear night

77° 💧 None 💨 2 mph H 56%29.85 inHg

Monday

5:00 AM

Clear night

68° 💧 None 💨 1 mph H 80%29.80 inHg

11:00 AM

Sunny

86° 💧 None 💨 2 mph H 37%29.83 inHg

5:00 PM

Sunny

91° 💧 None 💨 10 mph H 26%29.71 inHg

In Rialto and, more broadly, across the state of California: Clear skies will continue into the evening with temperatures remaining mild to warm, ranging from 72 to 79 degrees Fahrenheit. Winds will be coming from the northwest at a moderate pace, peaking around 11 mph, with gusts reaching up to 26 mph. No precipitation is expected during this time, providing a calm and dry evening. Residents can enjoy the tranquil weather with comfortable temperatures and gentle breezes. As the night progresses, skies are expected to stay clear, with no significant weather changes anticipated.

15-Day Weather Outlook for Rialto

TomorrowTomorrow

Sunny 87°/67° 💧 None 💨 10 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 84°/64° 💧 None 💨 10 mph

Thursday, Sep 17Thu Sep 17

Sunny 86°/64° 💧 None 💨 9 mph

Friday, Sep 18Fri Sep 18

Sunny 88°/64° 💧 None 💨 9 mph

Saturday, Sep 19Sat Sep 19

Sunny 90°/64° 💧 None 💨 10 mph

Sunday, Sep 20Sun Sep 20

Sunny 86°/64° 💧 None 💨 10 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 87°/66° 💧 None 💨 10 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 84°/67° 💧 None 💨 10 mph

Wednesday, Sep 23Wed Sep 23

Partly cloudy 75°/67° 💧 0.002 in 💨 10 mph

Thursday, Sep 24Thu Sep 24

Mostly cloudy 77°/67° 💧 0.001 in 💨 8 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 84°/64° 💧 None 💨 9 mph

Saturday, Sep 26Sat Sep 26

Overcast 91°/63° 💧 None 💨 8 mph

Sunday, Sep 27Sun Sep 27

Overcast 94°/68° 💧 None 💨 9 mph

Monday, Sep 28Mon Sep 28

Sunny 91°/68° 💧 None 💨 10 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Rialto

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Rialto

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 6:00 AM

PM2.5 Fine particles Good 5,5µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Fair 21,1µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 83,2µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 1,0µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Rialto

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 9,2Very high 🙂Fair

Tomorrow UV 9,0Very high 😐Moderate

Wednesday UV 8,8Very high 😐Moderate

Thursday UV 7,0High 😐Moderate

Friday UV 8,0Very high 🙂Fair

Saturday UV 8,0Very high —Unavailable

Sunday UV 7,0High —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,7 9:00 AMUV 2,1 10:00 AMUV 4,4 11:00 AMUV 6,9 12:00 PMUV 8,7 1:00 PMUV 9,2 2:00 PMUV 8,1 3:00 PMUV 6,0 4:00 PMUV 3,5 5:00 PMUV 1,5 6:00 PMUV 0,4

Today's weather health advice Open today's recommendations.

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Rialto

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · RIALTO, CALIFORNIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 8:22 PM–5:08 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 14% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 82° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min81%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Rialto were last refreshed today at 5:21 AM. The current forecast period extends through 16/09/2026 at 3:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.