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Current weather in Irwindale is clear sky.

Where can I find the hourly weather forecast for Irwindale?

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

Is the weather forecast for Irwindale updated regularly?

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

Now · 3:44 PM

Irwindale Weather & Hourly Forecast

United States · California · 91706

91°F

Sunny

Feels like: 92°F

💧 Humidity 42% 🌡 Pressure 29.80 inHg 💨 Wind 6 mph 👁 Visibility 25.2 mi ☁ Clouds 0% ☀️ UV index 6.3 · High 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Irwindale

Today

4:00 PM

Sunny

91° 💧 None 💨 6 mph H 42%29.80 inHg

7:00 PM

Sunny

84° 💧 None 💨 4 mph H 49%29.80 inHg

10:00 PM

Clear night

77° 💧 None 💨 2 mph H 66%29.85 inHg

Tomorrow

1:00 AM

Mostly clear night

73° 💧 None 💨 1 mph H 79%29.88 inHg

4:00 AM

Clear night

71° 💧 None 💨 1 mph H 83%29.85 inHg

7:00 AM

Sunny

70° 💧 None 💨 1 mph H 87%29.88 inHg

10:00 AM

Sunny

80° 💧 None 💨 3 mph H 62%29.91 inHg

1:00 PM

Sunny

90° 💧 None 💨 5 mph H 42%29.88 inHg

4:00 PM

Sunny

91° 💧 None 💨 7 mph H 39%29.83 inHg

7:00 PM

Sunny

82° 💧 None 💨 5 mph H 56%29.83 inHg

10:00 PM

Clear night

76° 💧 None 💨 3 mph H 69%29.88 inHg

Sunday

1:00 AM

Clear night

72° 💧 None 💨 2 mph H 82%29.88 inHg

4:00 AM

Clear night

69° 💧 None 💨 1 mph H 92%29.88 inHg

7:00 AM

Mostly sunny

67° 💧 None 💨 1 mph H 95%29.88 inHg

10:00 AM

Sunny

78° 💧 None 💨 2 mph H 65%29.88 inHg

1:00 PM

Sunny

88° 💧 None 💨 4 mph H 41%29.83 inHg

Today

4:00 PM

Sunny

91° 💧 None 💨 6 mph H 42%29.80 inHg

5:00 PM

Sunny

89° 💧 None 💨 6 mph H 42%29.77 inHg

6:00 PM

Sunny

87° 💧 None 💨 5 mph H 44%29.77 inHg

7:00 PM

Sunny

84° 💧 None 💨 4 mph H 49%29.80 inHg

8:00 PM

Clear night

82° 💧 None 💨 4 mph H 55%29.83 inHg

9:00 PM

Clear night

79° 💧 None 💨 3 mph H 61%29.85 inHg

10:00 PM

Clear night

77° 💧 None 💨 2 mph H 66%29.85 inHg

11:00 PM

Mostly clear night

76° 💧 None 💨 2 mph H 72%29.85 inHg

Tomorrow

12:00 AM

Clear night

74° 💧 None 💨 1 mph H 76%29.85 inHg

1:00 AM

Mostly clear night

73° 💧 None 💨 1 mph H 79%29.88 inHg

2:00 AM

Clear night

73° 💧 None 💨 1 mph H 80%29.85 inHg

3:00 AM

Clear night

72° 💧 None 💨 1 mph H 82%29.85 inHg

4:00 AM

Clear night

71° 💧 None 💨 1 mph H 83%29.85 inHg

5:00 AM

Clear night

70° 💧 None 💨 1 mph H 85%29.88 inHg

6:00 AM

Clear night

70° 💧 None 💨 1 mph H 87%29.88 inHg

7:00 AM

Sunny

70° 💧 None 💨 1 mph H 87%29.88 inHg

8:00 AM

Sunny

73° 💧 None 💨 2 mph H 79%29.91 inHg

9:00 AM

Sunny

76° 💧 None 💨 3 mph H 70%29.91 inHg

10:00 AM

Sunny

80° 💧 None 💨 3 mph H 62%29.91 inHg

11:00 AM

Sunny

84° 💧 None 💨 3 mph H 53%29.91 inHg

12:00 PM

Sunny

88° 💧 None 💨 4 mph H 46%29.88 inHg

1:00 PM

Sunny

90° 💧 None 💨 5 mph H 42%29.88 inHg

2:00 PM

Sunny

92° 💧 None 💨 6 mph H 38%29.85 inHg

3:00 PM

Sunny

93° 💧 None 💨 7 mph H 37%29.83 inHg

4:00 PM

Sunny

91° 💧 None 💨 7 mph H 39%29.83 inHg

5:00 PM

Sunny

89° 💧 None 💨 7 mph H 43%29.83 inHg

6:00 PM

Sunny

86° 💧 None 💨 6 mph H 49%29.83 inHg

7:00 PM

Sunny

82° 💧 None 💨 5 mph H 56%29.83 inHg

8:00 PM

Clear night

79° 💧 None 💨 4 mph H 62%29.83 inHg

9:00 PM

Clear night

77° 💧 None 💨 3 mph H 66%29.85 inHg

10:00 PM

Clear night

76° 💧 None 💨 3 mph H 69%29.88 inHg

11:00 PM

Clear night

75° 💧 None 💨 3 mph H 73%29.88 inHg

Sunday

12:00 AM

Clear night

73° 💧 None 💨 2 mph H 78%29.88 inHg

1:00 AM

Clear night

72° 💧 None 💨 2 mph H 82%29.88 inHg

2:00 AM

Clear night

71° 💧 None 💨 2 mph H 86%29.88 inHg

3:00 AM

Clear night

70° 💧 None 💨 2 mph H 89%29.88 inHg

4:00 AM

Clear night

69° 💧 None 💨 1 mph H 92%29.88 inHg

5:00 AM

Clear night

68° 💧 None 💨 1 mph H 94%29.88 inHg

6:00 AM

Mostly clear night

67° 💧 None 💨 1 mph H 95%29.88 inHg

7:00 AM

Mostly sunny

67° 💧 None 💨 1 mph H 95%29.88 inHg

8:00 AM

Mostly sunny

70° 💧 None 💨 1 mph H 85%29.88 inHg

9:00 AM

Mostly sunny

74° 💧 None 💨 2 mph H 75%29.88 inHg

10:00 AM

Sunny

78° 💧 None 💨 2 mph H 65%29.88 inHg

11:00 AM

Sunny

82° 💧 None 💨 2 mph H 55%29.88 inHg

12:00 PM

Sunny

85° 💧 None 💨 3 mph H 46%29.85 inHg

1:00 PM

Sunny

88° 💧 None 💨 4 mph H 41%29.83 inHg

2:00 PM

Sunny

89° 💧 None 💨 5 mph H 38%29.80 inHg

3:00 PM

Sunny

89° 💧 None 💨 6 mph H 35%29.80 inHg

4:00 PM

Sunny

88° 💧 None 💨 7 mph H 34%29.77 inHg

5:00 PM

Sunny

86° 💧 None 💨 6 mph H 36%29.77 inHg

6:00 PM

Sunny

84° 💧 None 💨 5 mph H 40%29.77 inHg

7:00 PM

Sunny

80° 💧 None 💨 5 mph H 47%29.77 inHg

8:00 PM

Clear night

78° 💧 None 💨 4 mph H 53%29.80 inHg

9:00 PM

Clear night

76° 💧 None 💨 3 mph H 58%29.80 inHg

10:00 PM

Clear night

74° 💧 None 💨 2 mph H 63%29.83 inHg

11:00 PM

Clear night

73° 💧 None 💨 2 mph H 68%29.83 inHg

Monday

12:00 AM

Clear night

72° 💧 None 💨 2 mph H 72%29.83 inHg

1:00 AM

Clear night

71° 💧 None 💨 1 mph H 75%29.83 inHg

2:00 AM

Clear night

69° 💧 None 💨 1 mph H 80%29.83 inHg

3:00 AM

Clear night

68° 💧 None 💨 1 mph H 83%29.83 inHg

4:00 AM

Clear night

68° 💧 None 💨 1 mph H 84%29.83 inHg

5:00 AM

Clear night

67° 💧 None 💨 1 mph H 85%29.83 inHg

8:00 AM

Sunny

69° 💧 None 💨 3 mph H 87%29.85 inHg

11:00 AM

Sunny

80° 💧 None 💨 4 mph H 51%29.85 inHg

2:00 PM

Sunny

85° 💧 None 💨 7 mph H 45%29.80 inHg

5:00 PM

Sunny

82° 💧 None 💨 7 mph H 46%29.77 inHg

8:00 PM

Clear night

73° 💧 None 💨 5 mph H 64%29.80 inHg

11:00 PM

Clear night

69° 💧 None 💨 4 mph H 80%29.85 inHg

Tuesday

2:00 AM

Clear night

66° 💧 None 💨 2 mph H 89%29.88 inHg

5:00 AM

Clear night

65° 💧 None 💨 2 mph H 93%29.88 inHg

8:00 AM

Sunny

68° 💧 None 💨 2 mph H 81%29.91 inHg

11:00 AM

Sunny

79° 💧 None 💨 4 mph H 45%29.91 inHg

2:00 PM

Sunny

83° 💧 None 💨 7 mph H 44%29.85 inHg

5:00 PM

Sunny

80° 💧 None 💨 7 mph H 46%29.83 inHg

8:00 PM

Clear night

72° 💧 None 💨 5 mph H 68%29.88 inHg

11:00 PM

Clear night

69° 💧 None 💨 3 mph H 79%29.91 inHg

Wednesday

2:00 AM

Clear night

66° 💧 None 💨 1 mph H 86%29.94 inHg

5:00 AM

Clear night

64° 💧 None 💨 1 mph H 93%29.94 inHg

8:00 AM

Sunny

66° 💧 None 💨 1 mph H 86%29.97 inHg

11:00 AM

Sunny

78° 💧 None 💨 3 mph H 48%30.00 inHg

2:00 PM

Sunny

85° 💧 None 💨 6 mph H 38%29.94 inHg

5:00 PM

Sunny

82° 💧 None 💨 7 mph H 38%29.91 inHg

8:00 PM

Clear night

73° 💧 None 💨 5 mph H 62%29.94 inHg

11:00 PM

Clear night

70° 💧 None 💨 2 mph H 76%30.00 inHg

Thursday

2:00 AM

Clear night

67° 💧 None 💨 2 mph H 85%30.00 inHg

5:00 AM

Clear night

65° 💧 None 💨 1 mph H 93%30.00 inHg

11:00 AM

Sunny

79° 💧 None 💨 3 mph H 44%30.06 inHg

5:00 PM

Sunny

82° 💧 None 💨 7 mph H 43%29.94 inHg

11:00 PM

Clear night

69° 💧 None 💨 2 mph H 75%30.03 inHg

Friday

5:00 AM

Clear night

64° 💧 None 💨 1 mph H 88%29.97 inHg

11:00 AM

Sunny

80° 💧 None 💨 3 mph H 42%29.97 inHg

5:00 PM

Sunny

84° 💧 None 💨 8 mph H 36%29.85 inHg

11:00 PM

Clear night

70° 💧 None 💨 3 mph H 75%29.91 inHg

Saturday

5:00 AM

Mostly cloudy night

66° 💧 None 💨 3 mph H 98%29.88 inHg

11:00 AM

Sunny

80° 💧 None 💨 2 mph H 49%29.88 inHg

5:00 PM

Sunny

84° 💧 None 💨 7 mph H 41%29.77 inHg

11:00 PM

Clear night

71° 💧 None 💨 3 mph H 75%29.85 inHg

Sunday

5:00 AM

Mostly cloudy night

66° 💧 None 💨 2 mph H 92%29.85 inHg

11:00 AM

Sunny

79° 💧 None 💨 2 mph H 56%29.88 inHg

5:00 PM

Sunny

84° 💧 None 💨 7 mph H 45%29.77 inHg

11:00 PM

Clear night

71° 💧 None 💨 3 mph H 75%29.88 inHg

Monday

5:00 AM

Mostly clear night

66° 💧 None 💨 1 mph H 94%29.85 inHg

11:00 AM

Sunny

79° 💧 None 💨 3 mph H 55%29.88 inHg

5:00 PM

Partly cloudy

83° 💧 None 💨 7 mph H 49%29.77 inHg

11:00 PM

Clear night

72° 💧 None 💨 4 mph H 81%29.83 inHg

Tuesday

5:00 AM

Clear night

67° 💧 None 💨 1 mph H 88%29.80 inHg

11:00 AM

Sunny

79° 💧 None 💨 3 mph H 56%29.83 inHg

5:00 PM

Sunny

82° 💧 None 💨 7 mph H 52%29.71 inHg

11:00 PM

Clear night

71° 💧 None 💨 3 mph H 78%29.80 inHg

Wednesday

5:00 AM

Clear night

67° 💧 None 💨 2 mph H 89%29.80 inHg

11:00 AM

Sunny

79° 💧 None 💨 4 mph H 56%29.83 inHg

5:00 PM

Mostly sunny

79° 💧 None 💨 6 mph H 56%29.80 inHg

11:00 PM

Mostly clear night

70° 💧 None 💨 3 mph H 78%29.88 inHg

Thursday

5:00 AM

Light rain

67° 💧 None 💨 1 mph H 96%29.91 inHg

11:00 AM

Mostly cloudy

73° 💧 None 💨 2 mph H 69%29.97 inHg

5:00 PM

Mostly sunny

73° 💧 None 💨 6 mph H 69%29.94 inHg

11:00 PM

Mostly clear night

66° 💧 None 💨 3 mph H 88%30.00 inHg

Friday

5:00 AM

Mostly cloudy night

63° 💧 None 💨 0 mph H 99%29.97 inHg

11:00 AM

Sunny

74° 💧 None 💨 2 mph H 66%30.00 inHg

5:00 PM

Sunny

79° 💧 None 💨 6 mph H 56%29.88 inHg

11:00 PM

Clear night

67° 💧 None 💨 2 mph H 87%29.97 inHg

Saturday

5:00 AM

Mostly clear night

61° 💧 None 💨 2 mph H 98%29.91 inHg

In Irwindale and, more broadly, across the state of California: Clear skies will persist into the evening, with temperatures remaining quite hot, ranging from the mid-70s to nearly 100 degrees Fahrenheit. Winds will be moderate from the northwest, reaching up to 14 mph with gusts up to 31 mph. No precipitation is expected during this time, so dry conditions will continue through the evening. It will stay warm overnight, so plan accordingly if you're heading out later. Remember to stay hydrated and take precautions if you plan to be outdoors for extended periods.

15-Day Weather Outlook for Irwindale

TomorrowTomorrow

Mostly sunny 93°/70° 💧 None 💨 7 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 89°/67° 💧 None 💨 7 mph

Monday, Sep 14Mon Sep 14

Sunny 86°/67° 💧 None 💨 7 mph

Tuesday, Sep 15Tue Sep 15

Sunny 83°/65° 💧 None 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Sunny 85°/64° 💧 None 💨 7 mph

Thursday, Sep 17Thu Sep 17

Sunny 82°/65° 💧 None 💨 7 mph

Friday, Sep 18Fri Sep 18

Sunny 82°/64° 💧 None 💨 7 mph

Saturday, Sep 19Sat Sep 19

Mostly cloudy 84°/66° 💧 None 💨 8 mph

Sunday, Sep 20Sun Sep 20

Mostly cloudy 84°/66° 💧 None 💨 7 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 84°/66° 💧 0.001 in 💨 7 mph

Tuesday, Sep 22Tue Sep 22

Partly cloudy 83°/67° 💧 None 💨 7 mph

Wednesday, Sep 23Wed Sep 23

Sunny 82°/67° 💧 None 💨 7 mph

Thursday, Sep 24Thu Sep 24

Light rain 79°/67° 💧 0.339 in 💨 6 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 74°/63° 💧 0.015 in 💨 6 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 79°/61° 💧 None 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Irwindale

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Irwindale

Hourly forecast · Updated every 2 hours

Moderate

Nearest forecast value 4:00 PM

PM2.5 Fine particles Fair 21,0µg/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 44,3µg/m³

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

O₃ Ozone Moderate 125,3µg/m³

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

NO₂ Nitrogen dioxide Good 0,5µg/m³

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

Sensitive people should reduce strenuous and prolonged outdoor exertion.

UV & HEALTH

UV, Sun & Health Outlook in Irwindale

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 9,4Very high 😐Moderate

Tomorrow UV 9,4Very high 😐Moderate

Sunday UV 9,2Very high 😐Moderate

Monday UV 9,0Very high 😐Moderate

Tuesday UV 6,0High 🙂Fair

Wednesday UV 6,0High —Unavailable

Thursday UV 7,0High —Unavailable

Hourly UV index today

4:00 PMUV 3,8 5:00 PMUV 1,6 6:00 PMUV 0,4 7:00 PMUV 0,0

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.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor exertion.

High heat

Stay hydrated and avoid intense exercise during the hottest part of the day.

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 Irwindale

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · IRWINDALE, CALIFORNIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 12:00 AM–1:00 AM.

98/100Best-hour score

BEST TIME TONIGHT 12:00 AM–1:00 AM Astronomical darkness: 8:29 PM–5:08 AM

☁ Cloud cover 3% Real hourly forecast for the best viewing hour.

☾ Moonlight 0% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 36° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min62%

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.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Irwindale were last refreshed today at 3:44 PM. The current forecast period extends through 13/09/2026 at 1:00 PM. 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.