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Santa Clarita, California Weather

Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →

Santa Clarita weather forecast — hour by hour, 7-day outlook, NOAA radar

Santa Clarita, CA
Sunday, July 5 at 10:04 AM
82
°
Partly Cloudy
Feels like
82°
Humidity
36%
Wind
7 mph
Sunrise
10:47 PM
Sunset
1:09 PM
Santa Clarita, CA
Hour by hour · 24h
24-Hour ForecastSanta Clarita, CA: 24-hour forecast. Temperatures range from 61 to 91 degrees Fahrenheit.
L 61°H 91°
Santa Clarita, CA
7-day forecast
  1. Today
    Jul 5
    Partly Cloudy
    —
    —
    91°66°—
  2. Monday
    Jul 6
    Clear
    —
    —
    92°61°+1°
  3. Tuesday
    Jul 7
    Clear
    —
    —
    94°66°+2°
  4. Wednesday
    Jul 8
    Clear
    —
    —
    100°74°+6°
  5. Thursday
    Jul 9
    Clear
    —
    —
    98°76°-2°
  6. Friday
    Jul 10
    Clear
    —
    —
    93°73°-5°
  7. Saturday
    Jul 11
    Overcast
    —
    —
    94°74°+1°
Santa Clarita, CA
Next 24 hours · Warm now
HOT 90°55°78°100°6a12p6p12anow 82°high 91°low 61°
Santa Clarita, CA
Anemometer · 24h winds · from true
NESW
From · True
SW
229° · steady
Direction
SW
229°
Sustained
7
mph
Gust
8
mph
Peak 24h
15
avg 6
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 6 · pk 15 @ 1:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 133SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Santa Clarita, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
967.3
+0.4 mb in 3h · steady · 28.56 inHg
Now
967.3
mb
3h
+0.4
mb
12h
-0.9
mb
24h
-2.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 967–970
960965970975-21h-18h-15h-12h-9h-6h-3h-24hNOW970.1966.5967.3
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Santa Clarita, CA
Air quality
54
AQI
Moderate
→0 in 6h

AQI 54 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 13.8 µg/m³, PM10 at 19.4 µg/m³ — typical background levels with no transport signature.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERModerate
13.8μg/m³
PM 10Good
19μg/m³
NO₂Good
9μg/m³
OzoneModerate
66μg/m³
UV IndexHigh
7.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 31 now. With UV 9.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 41 around 1 PM.

Present
AQI 31
UV peak
9.9 at 1 PM
Sky at peak
clear
Projected peak
AQI 41

PM × Wind × Precip

PM2.5 at 13.8 µg/m³, PM10 at 19.4 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.71
Wind
light
Recent rain
0h in last 6h
Pattern
background

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³310
Santa Clarita, CA
Sky cover · visibility · 24h
Cloud cover
67%
PARTLY CLOUDY
100%0%−24h−18h−12h−6hnow
Visibility
100.9mi
UNLIMITED
185 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
17:04 UTC · Santa Clarita, CA · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
17:04 UTC · Santa Clarita, CA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Santa Clarita, CA
Satellite · infrared · animated
Santa Clarita, CA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Santa Clarita, CA
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:19 AM
Sunrise
10:47 PM
Daylight
14h 22m
Sunset
1:09 PM
Civil dusk
8:40 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Santa Clarita, CA
The moon
Waning Gibbous
71% illuminated
Moonrise
11:10 PM
Moonset
11:13 AM
In sign
♓︎ Pisces
Santa Clarita, CA
Microseason
Jul 1–5

Summer heat deepens across the valleys

weather
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Santa Clarita at a glance

  • Today vs. normal: 5°F above the seasonal normal for this latitude
  • Last frost: March 14 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP codes: 91350, 91390

16-Day Forecast — Santa Clarita

  1. Sun90°66°0%
  2. Mon92°61°0%
  3. Tue94°66°0%
  4. Wed100°74°0%
  5. Thu98°76°0%
  6. Fri93°73°0%
  7. Sat94°74°0%
  8. Sun98°74°1%
  9. Mon99°76°4%
  10. Tue96°79°6%
  11. Wed99°79°3%
  12. Thu101°81°10%
  13. Fri108°85°9%
  14. Sat115°90°6%
  15. Sun98°84°10%
  16. Mon100°79°10%

Forecast data from Open-Meteo (CC BY 4.0).

Live wind & temperature near Santa Clarita

Right now in the garden

Peak growing season

As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

January 1–5: New year in coastal mist.January 6–10: Hills hold the winter cold.January 11–15: Light lengthens over wet earth.January 16–20: The green pulse quickens.January 21–25: Spring green spreads inland.January 26–31: Winter's grip releases.February 1–5: Fog lifts, flowers open.February 6–10: Blooms erupt across chaparral.February 11–15: Winter blooms at their peak.February 16–20: Rivers recede, flowers spread.February 21–25: Earth warms, flowers rush upslope.February 26–28: Spring advances on cool winds.March 1–5: Grass and trees bud and break.March 6–10: Insects wake and feed.March 11–15: Blossoms crown the hillsides.March 16–20: Monarch chrysalis emergence.March 21–25: Light overtakes dark at equinox.March 26–31: California poppy ablaze.April 1–5: Spring rain feeds the seedlings.April 6–10: Warblers flood the understory.April 11–15: Allen's hummingbirds in courtship dives.April 16–20: Coastal fog settles; sun breaks midday.April 21–25: Oak canopies full and green.April 26–30: Chaparral awakens after spring rains.May 1–5: Coastal wildflowers at their peak.May 6–10: Gray whales complete their migration north.May 11–15: Redwood coast in cool shade.May 16–20: Fog and sun in daily rhythm.May 21–25: Summer approaches; hills turn gold.May 26–31: Dry season begins; tule fog in valleys.June 1–5: Coastal fog thickens at dawn.June 6–10: California poppies fade as heat rises.June 11–15: Summer solstice light stretched thin.June 16–20: Bay laurel fragrance sweetens shade.June 21–25: Longest daylight, driest air.June 26–30: Fog banks mask the turning tide.July 1–5: Summer heat deepens across the valleys.July 6–10: Warm winds drive dryness inland.July 11–15: Pacific high settles in firmly.July 16–20: Young hawks take to the thermals.July 21–25: Peak fire season, peak heat.July 26–31: Chaparral poised for ignition.August 1–5: August begins in scorching stillness.August 6–10: Autumn's first cool breath arrives.August 11–15: Cool winds signal the turning year.August 16–20: Evening cicada chorus.August 21–25: Marine layer descent.August 26–31: Monarch staging begins.September 1–5: Fire season intensity.September 6–10: Dew on drying grasses.September 11–15: Raptor passage begins.September 16–20: Equinox descent.September 21–25: Ceanothus blooms again.September 26–30: Insects retreat below.October 1–5: Creeks begin to whisper.October 6–10: Santa Ana wind season.October 11–15: Wildflower anticipation.October 16–20: Chaparral embers glow.October 21–25: First atmospheric river looms.October 26–31: Rains return at last.November 1–5: Coast live oak leaves turn amber.November 6–10: California lilac blooms in winter light.November 11–15: First rain greens the chaparral.November 16–20: Coastal fog thickens as storms approach.November 21–25: Thanksgiving rains swell the valleys.November 26–30: Autumn's last breath yields to winter.December 1–5: December arrives, storms accelerate.December 6–10: Winter solstice season intensifies.December 11–15: Deep winter: rivers at flood stage.December 16–20: Winter salmon runs peak in northern rivers.December 21–25: Winter solstice: the sun turns.December 26–31: Year's end in wind and rain.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Summer heat deepens across the valleys

Inland temperatures exceed 95°F regularly; fire danger reaches moderate to high across most of the region.

Day 186 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
Marchlettuce, peas, spinach, radishes—
Aprillettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash—
Maytomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
July—tomatoes, beans, summer squash
August—tomatoes, beans, summer squash
September—tomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
Novemberfall brassicas, garlic (overwinter), carrots—
December——

A year in weather

August is Santa Clarita's warmest stretch (~80°F) and December its coldest (~53°F); precipitation crests in February at 4.4 inches and ebbs in August to 0.0 inches.

MonthMean tempPrecipRainy days
January55°4.2″3
February55°4.4″5
March59°2.9″3
April61°0.8″2
May67°0.3″1
June72°0.0″0
July79°0.0″0
August80°0.0″0
September77°0.1″0
October69°0.5″1
November60°0.8″2
December53°2.6″3

Regional context

Drawing on NOAA NCEI 1991-2020 normals, Santa Clarita's January averages 55°F and July 79°F — 24°F apart — while precipitation totals roughly 16.8 inches over some 19 days.

Precipitation in Santa Clarita peaks in the cool season: February averages 4.4 inches across 5.1 storm-fed days, while August bottoms out at 0.0 inches over just 0.0 rainy days. That cool-season-wet pattern aligns Santa Clarita with places like Stevenson Ranch, CA, Castaic, CA and San Fernando, CA.

Santa Clarita rarely sees a hard freeze — its coldest month sits near 53°F — so planting spans most of the calendar. Heat peaks in August around 80°F, which confines cool-season crops to the shoulders of summer. Within Santa Clarita, low or inland lots lose 3-5°F overnight versus Santa Clarita's coastal ground.

Similar climates: Stevenson Ranch, CA, Castaic, CA, San Fernando, CA, Val Verde, CA, Hasley Canyon, CA.

Naturalist notes

California poppies begin their spring bloom in late March as soil temperatures warm.

Red-winged blackbirds establish territories in nearby wetlands during April migration periods.

Frequently asked

When does it freeze in Santa Clarita?
Frost typically leaves Santa Clarita by mid-March and returns to Santa Clarita near mid-December.
What is the rainy season in Santa Clarita?
Rainfall in Santa Clarita peaks in February near 4.4 inches, out of about 17 inches annually.
What is the warmest month in Santa Clarita?
On average August tops the year in Santa Clarita at about 80°F.
What is the coldest month in Santa Clarita?
The coldest stretch in Santa Clarita falls in December, around 53°F on average.
When can I start a vegetable garden in Santa Clarita?
In Santa Clarita, sow peas and hardy greens around mid-March; Santa Clarita's tomatoes and peppers wait two weeks more.
How many rainy days does Santa Clarita get?
Santa Clarita records around 19 days of measurable precipitation annually.
What hardiness zone is Santa Clarita?
Since December in Santa Clarita averages 53°F, Santa Clarita's USDA zone follows that floor — confirm it by ZIP.
What is the 10-day forecast for Santa Clarita?
Santa Clarita's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Santa Clarita?
See this week's day-by-day rain chances for Santa Clarita in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Santa Clarita?
Current conditions for Santa Clarita and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Santa Clarita forecast updated?
The Santa Clarita forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Santa Clarita?
Today's sunrise and sunset times for Santa Clarita are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Santa Clarita?
The next few days in Santa Clarita's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

The hot-summer Mediterranean climate of Santa Clarita, California carries typical Januarys near 55°F and Julys around 79°F — 24°F of seasonal travel.

Yearly precipitation in Santa Clarita totals around 17 inches, spread over about 19 days of rain or snow.

From 34.4°N, Santa Clarita sees a 24°F seasonal swing that governs Santa Clarita's planting and frost windows.

All cities in California →

Los Angeles, CA weather →

ZIP codes in Santa Clarita

  • 91351
  • 91321
  • 91350
  • 91355
  • 91354
  • 91387
  • 91322
  • 91382
  • 91385
  • 91386

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.