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Now · 7:22 PM

Santa Ana Weather & Hourly Forecast

United States · California · 92704

Sunny
78°F
Sunny
Feels like: 81°F
💧 Humidity 65% 🌡 Pressure 29.80 inHg 💨 Wind 4 mph 👁 Visibility 21.2 mi Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise 🌇 Sunset

Hourly Forecast for Santa Ana

Today
Clear night · 8:00 PM Clear night
76° 💧 None 💨 3 mph H 72%29.83 inHg
Clear night · 11:00 PM Clear night
73° 💧 None 💨 2 mph H 84%29.85 inHg
Tomorrow
Clear night · 2:00 AM Clear night
71° 💧 None 💨 3 mph H 92%29.85 inHg
Clear night · 5:00 AM Clear night
70° 💧 None 💨 3 mph H 93%29.85 inHg
Sunny · 8:00 AM Sunny
72° 💧 None 💨 3 mph H 84%29.91 inHg
Sunny · 11:00 AM Sunny
81° 💧 None 💨 4 mph H 63%29.91 inHg
Sunny · 2:00 PM Sunny
83° 💧 None 💨 6 mph H 61%29.85 inHg
Sunny · 5:00 PM Sunny
79° 💧 None 💨 6 mph H 64%29.83 inHg
Clear night · 8:00 PM Clear night
74° 💧 None 💨 4 mph H 83%29.85 inHg
Clear night · 11:00 PM Clear night
73° 💧 0.000 in 💨 4 mph H 85%29.88 inHg
Sunday
Mostly cloudy night · 2:00 AM Mostly cloudy night
71° 💧 0.000 in 💨 3 mph H 89%29.88 inHg
Overcast night · 5:00 AM Overcast night
69° 💧 0.001 in 💨 2 mph H 91%29.88 inHg
Mostly cloudy · 8:00 AM Mostly cloudy
70° 💧 0.000 in 💨 3 mph H 85%29.88 inHg
Mostly sunny · 11:00 AM Mostly sunny
78° 💧 None 💨 4 mph H 63%29.88 inHg
Sunny · 2:00 PM Sunny
80° 💧 None 💨 7 mph H 57%29.83 inHg
Sunny · 5:00 PM Sunny
78° 💧 None 💨 6 mph H 58%29.80 inHg

In Santa Ana and, more broadly, across the state of California: Clear skies are expected throughout the evening, with temperatures remaining quite warm, ranging from the mid-80s to low 90s. Winds will be moderate, coming from the northwest at speeds up to 14 mph, with gusts reaching 30 mph. No precipitation is anticipated during this time, so conditions will stay dry and clear. It will remain quite warm as the evening progresses, making for a warm night ahead. Residents should be prepared for the gusty winds, especially if planning outdoor activities. Overall, it will be a hot and breezy evening with no weather-related concerns.

15-Day Weather Outlook for Santa Ana

Sunday, Sep 13Sun Sep 13 Mostly sunny Mostly sunny 80°/69° 💧 None 💨 7 mph
Monday, Sep 14Mon Sep 14 Partly cloudy Partly cloudy 79°/66° 💧 None 💨 7 mph
Tuesday, Sep 15Tue Sep 15 Mostly sunny Mostly sunny 77°/68° 💧 None 💨 8 mph
Wednesday, Sep 16Wed Sep 16 Mostly sunny Mostly sunny 76°/65° 💧 None 💨 7 mph
Thursday, Sep 17Thu Sep 17 Sunny Sunny 77°/66° 💧 None 💨 7 mph
Friday, Sep 18Fri Sep 18 Mostly sunny Mostly sunny 78°/66° 💧 0.001 in 💨 8 mph
Saturday, Sep 19Sat Sep 19 Overcast Overcast 80°/69° 💧 None 💨 7 mph
Sunday, Sep 20Sun Sep 20 Mostly sunny Mostly sunny 77°/67° 💧 0.001 in 💨 6 mph
Monday, Sep 21Mon Sep 21 Mostly cloudy Mostly cloudy 77°/68° 💧 None 💨 7 mph
Tuesday, Sep 22Tue Sep 22 Mostly sunny Mostly sunny 77°/68° 💧 None 💨 7 mph
Wednesday, Sep 23Wed Sep 23 Partly cloudy Partly cloudy 77°/69° 💧 0.001 in 💨 7 mph
Thursday, Sep 24Thu Sep 24 Partly cloudy Partly cloudy 79°/70° 💧 0.166 in 💨 6 mph
Friday, Sep 25Fri Sep 25 Overcast Overcast 74°/65° 💧 0.092 in 💨 7 mph
Saturday, Sep 26Sat Sep 26 Sunny Sunny 77°/66° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Santa Ana

Vertical axis: °F · Color based on temperature
Clear night at 8:00 PM
76° Today 8:00 PM
Clear night at 9:00 PM
75° 9:00 PM
Clear night at 10:00 PM
74° 10:00 PM
Clear night at 11:00 PM
73° 11:00 PM
Clear night at 12:00 AM
72° Tomorrow 12:00 AM
Clear night at 1:00 AM
71° 1:00 AM
Clear night at 2:00 AM
71° 2:00 AM
Clear night at 3:00 AM
70° 3:00 AM
Clear night at 4:00 AM
70° Tomorrow 4:00 AM
Clear night at 5:00 AM
70° 5:00 AM
Clear night at 6:00 AM
70° 6:00 AM
Sunny at 7:00 AM
70° 7:00 AM
Sunny at 8:00 AM
72° Tomorrow 8:00 AM
Sunny at 9:00 AM
76° 9:00 AM
Sunny at 10:00 AM
78° 10:00 AM
Sunny at 11:00 AM
81° 11:00 AM
Sunny at 12:00 PM
82° Tomorrow 12:00 PM
Sunny at 1:00 PM
83° 1:00 PM
Sunny at 2:00 PM
83° 2:00 PM
Sunny at 3:00 PM
82° 3:00 PM
Sunny at 4:00 PM
81° Tomorrow 4:00 PM
Sunny at 5:00 PM
79° 5:00 PM
Sunny at 6:00 PM
77° 6:00 PM
Sunny at 7:00 PM
75° 7:00 PM
Clear night at 8:00 PM
74° Tomorrow 8:00 PM
Clear night at 9:00 PM
74° 9:00 PM
Clear night at 10:00 PM
73° 10:00 PM
Clear night at 11:00 PM
73° 11:00 PM
Mostly clear night at 12:00 AM
72° Sunday 12:00 AM
Partly cloudy night at 1:00 AM
71° 1:00 AM
Mostly cloudy night at 2:00 AM
71° 2:00 AM
Mostly cloudy night at 3:00 AM
70° 3:00 AM
Overcast night at 4:00 AM
70° Sunday 4:00 AM
Overcast night at 5:00 AM
69° 5:00 AM
Overcast night at 6:00 AM
69° 6:00 AM
Overcast at 7:00 AM
69° 7:00 AM
Mostly cloudy at 8:00 AM
70° Sunday 8:00 AM
Partly cloudy at 9:00 AM
73° 9:00 AM
Mostly sunny at 10:00 AM
76° 10:00 AM
Mostly sunny at 11:00 AM
78° 11:00 AM
Sunny at 12:00 PM
80° Sunday 12:00 PM
Sunny at 1:00 PM
80° 1:00 PM
Sunny at 2:00 PM
80° 2:00 PM
Sunny at 3:00 PM
80° 3:00 PM
Sunny at 4:00 PM
79° Sunday 4:00 PM
Sunny at 5:00 PM
78° 5:00 PM
Sunny at 6:00 PM
75° 6:00 PM
Sunny at 7:00 PM
73° 7:00 PM
Clear night at 8:00 PM
72° Sunday 8:00 PM
Clear night at 9:00 PM
72° 9:00 PM
Clear night at 10:00 PM
71° 10:00 PM
Clear night at 11:00 PM
70° 11:00 PM
Partly cloudy night at 12:00 AM
70° Monday 12:00 AM
Partly cloudy night at 1:00 AM
69° 1:00 AM
Clear night at 2:00 AM
68° 2:00 AM
Clear night at 3:00 AM
67° 3:00 AM
Clear night at 4:00 AM
66° Monday 4:00 AM
Clear night at 5:00 AM
67° 5:00 AM
Sunny at 2:00 PM
79° 2:00 PM
Sunny at 5:00 PM
76° 5:00 PM
Clear night at 8:00 PM
72° Monday 8:00 PM
Clear night at 11:00 PM
70° 11:00 PM
Mostly clear night at 2:00 AM
69° 2:00 AM
Clear night at 5:00 AM
68° 5:00 AM
Sunny at 8:00 AM
69° Tuesday 8:00 AM
Sunny at 11:00 AM
77° 11:00 AM
Sunny at 2:00 PM
77° 2:00 PM
Sunny at 5:00 PM
75° 5:00 PM
Clear night at 8:00 PM
72° Tuesday 8:00 PM
Clear night at 11:00 PM
70° 11:00 PM
Clear night at 2:00 AM
67° 2:00 AM
Mostly clear night at 5:00 AM
65° 5:00 AM
Sunny at 8:00 AM
67° Wednesday 8:00 AM
Sunny at 11:00 AM
75° 11:00 AM
Sunny at 2:00 PM
76° 2:00 PM
Sunny at 5:00 PM
75° 5:00 PM
Clear night at 8:00 PM
72° Wednesday 8:00 PM
Clear night at 11:00 PM
70° 11:00 PM
Clear night at 2:00 AM
69° 2:00 AM
Clear night at 5:00 AM
66° 5:00 AM
Sunny at 8:00 AM
68° Thursday 8:00 AM
Sunny at 11:00 AM
77° 11:00 AM
Sunny at 5:00 PM
76° 5:00 PM
Clear night at 11:00 PM
78° 11:00 PM
Clear night at 5:00 AM
71° Friday 5:00 AM
Mostly sunny at 11:00 AM
66° 11:00 AM
Sunny at 5:00 PM
76° 5:00 PM
Clear night at 11:00 PM
80° 11:00 PM
Clear night at 5:00 AM
72° Saturday 5:00 AM
Overcast at 11:00 AM
69° 11:00 AM
Mostly sunny at 5:00 PM
76° 5:00 PM
Clear night at 11:00 PM
77° 11:00 PM
Clear night at 5:00 AM
71° Sunday 5:00 AM
Mostly sunny at 11:00 AM
67° 11:00 AM
Sunny at 5:00 PM
76° 5:00 PM
Clear night at 11:00 PM
77° 11:00 PM
Mostly clear night at 5:00 AM
71° Monday 5:00 AM
Mostly cloudy at 11:00 AM
68° 11:00 AM
Mostly sunny at 5:00 PM
76° 5:00 PM
Mostly cloudy night at 11:00 PM
77° 11:00 PM
Clear night at 5:00 AM
72° Tuesday 5:00 AM
Mostly sunny at 11:00 AM
68° 11:00 AM
Partly cloudy at 5:00 PM
77° 5:00 PM
Clear night at 11:00 PM
76° 11:00 PM
Mostly clear night at 5:00 AM
72° Wednesday 5:00 AM
Mostly sunny at 11:00 AM
69° 11:00 AM
Partly cloudy at 5:00 PM
79° 5:00 PM
Clear night at 11:00 PM
76° 11:00 PM
Partly cloudy night at 5:00 AM
71° Thursday 5:00 AM
Partly cloudy at 11:00 AM
70° 11:00 AM
Overcast at 5:00 PM
74° 5:00 PM
Mostly clear night at 11:00 PM
73° 11:00 PM
Partly cloudy night at 5:00 AM
69° Friday 5:00 AM
Mostly sunny at 11:00 AM
65° 11:00 AM
Sunny at 5:00 PM
74° 5:00 PM
Clear night at 11:00 PM
77° 11:00 PM
Clear night at 5:00 AM
70° Saturday 5:00 AM
Sunny at 11:00 AM
66° 11:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Santa Ana

Hourly forecast · Updated every 2 hours
Moderate
Nearest forecast value 8:00 PM
PM2.5 Fine particles Fair 14,1µg/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 37,9µg/m³

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

O₃ Ozone Moderate 106,5µg/m³

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

NO₂ Nitrogen dioxide Good 0,7µg/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 Santa Ana

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 9,1Very high 😐Moderate
Tomorrow UV 9,1Very high 😐Moderate
Sunday UV 9,1Very high 😐Moderate
Monday UV 8,7Very high 😐Moderate
Tuesday UV 7,0High 🙂Fair
Wednesday UV 7,0High Unavailable
Thursday UV 8,0Very high Unavailable
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.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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 Santa Ana

Vertical axis: mph · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in mph. Today 8:00 PM 9:00 PM 10:00 PM 11:00 PM Tomorrow 12:00 AM 1:00 AM 2:00 AM 3:00 AM Tomorrow 4:00 AM 5:00 AM 6:00 AM 7:00 AM Tomorrow 8:00 AM 9:00 AM 10:00 AM 11:00 AM Tomorrow 12:00 PM 1:00 PM 2:00 PM 3:00 PM Tomorrow 4:00 PM 5:00 PM 6:00 PM 7:00 PM Tomorrow 8:00 PM 9:00 PM 10:00 PM 11:00 PM Sunday 12:00 AM 1:00 AM 2:00 AM 3:00 AM Sunday 4:00 AM 5:00 AM 6:00 AM 7:00 AM Sunday 8:00 AM 9:00 AM 10:00 AM 11:00 AM Sunday 12:00 PM 1:00 PM 2:00 PM 3:00 PM Sunday 4:00 PM 5:00 PM 6:00 PM 7:00 PM Sunday 8:00 PM 9:00 PM 10:00 PM 11:00 PM Monday 12:00 AM 1:00 AM 2:00 AM 3:00 AM Monday 4:00 AM 5:00 AM 2:00 PM 5:00 PM Monday 8:00 PM 11:00 PM 2:00 AM 5:00 AM Tuesday 8:00 AM 11:00 AM 2:00 PM 5:00 PM Tuesday 8:00 PM 11:00 PM 2:00 AM 5:00 AM Wednesday 8:00 AM 11:00 AM 2:00 PM 5:00 PM Wednesday 8:00 PM 11:00 PM 2:00 AM 5:00 AM Thursday 8:00 AM 11:00 AM 5:00 PM 11:00 PM Friday 5:00 AM 11:00 AM 5:00 PM 11:00 PM Saturday 5:00 AM 11:00 AM 5:00 PM 11:00 PM Sunday 5:00 AM 11:00 AM 5:00 PM 11:00 PM Monday 5:00 AM 11:00 AM 5:00 PM 11:00 PM Tuesday 5:00 AM 11:00 AM 5:00 PM 11:00 PM Wednesday 5:00 AM 11:00 AM 5:00 PM 11:00 PM Thursday 5:00 AM 11:00 AM 5:00 PM 11:00 PM Friday 5:00 AM 11:00 AM 5:00 PM 11:00 PM Saturday 5:00 AM 11:00 AM
Sustained wind Max gusts
NIGHT SKY · SANTA ANA, CALIFORNIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

96/100Best-hour score
BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 8:28 PM–5:08 AM
Cloud cover 1% 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 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 min80%
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.

Forecast data for Santa Ana were last refreshed today at 7:22 PM. The current forecast period extends through 13/09/2026 at 5:00 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.