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Williams Canyon, California Weather

Bay laurel fragrance sweetens shade. Day 90 of spring. Read this microseason across nine climate regions →

Williams Canyon weather forecast — hour by hour, 7-day outlook, NOAA radar

Williams Canyon, CA
Wednesday, June 17 at 9:38 AM
65
°
Partly Cloudy
Feels like
66°
Humidity
79%
Wind
4 mph
Sunrise
10:39 PM
Sunset
1:03 PM
Williams Canyon, CA
Hour by hour · 24h
24-Hour ForecastWilliams Canyon, CA: 24-hour forecast. Temperatures range from 58 to 79 degrees Fahrenheit.
L 58°H 79°
Williams Canyon, CA
7-day forecast
  1. Today
    Jun 17
    Foggy
    —
    —
    79°54°—
  2. Thursday
    Jun 18
    Foggy
    —
    —
    69°58°-10°
  3. Friday
    Jun 19
    Foggy
    —
    —
    76°57°+7°
  4. Saturday
    Jun 20
    Mostly Clear
    —
    —
    75°56°-1°
  5. Sunday
    Jun 21
    Partly Cloudy
    —
    —
    76°56°+1°
  6. Monday
    Jun 22
    Clear
    —
    —
    80°57°+4°
  7. Tuesday
    Jun 23
    Clear
    —
    —
    87°62°+7°
Williams Canyon, CA
Next 24 hours · Cool now
54°69°84°6a12p6p12anow 61°high 79°low 58°
Williams Canyon, CA
Anemometer · 24h winds · from true
NESW
From · True
SW
230° · backing 27°
Direction
SW
230°
Sustained
4
mph
Gust
8
mph
Peak 24h
8
avg 4
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 4 · pk 8 @ 2:00p
010MPHB1B2B3B4-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 103SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 27° from the sw.
Williams Canyon, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
968.5
+1.3 mb in 3h · rising · 28.60 inHg
Now
968.5
mb
3h
+1.3
mb
12h
+0.8
mb
24h
-2.5
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 967–971
960965970975-21h-18h-15h-12h-9h-6h-3h-24hNOW970.6966.5967.8
−24h−18h−12h−6hnow
The low is filling — pressure climbing out of storm territory.
Williams Canyon, CA
Air quality
48
AQI
Good
→+4 in 6h

AQI 48 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 11.1 µg/m³ (AQI 55) with a 0.73 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.

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

PM 2.5DRIVERGood
11.1μg/m³
PM 10Good
15μg/m³
NO₂Good
4μg/m³
OzoneModerate
75μg/m³
UV IndexModerate
3.8

What's driving it

Ozone × UV × Sky

Ozone at AQI 35 now. With UV 7.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 35 around 1 PM.

Present
AQI 35
UV peak
7.6 at 1 PM
Sky at peak
clear
Projected peak
AQI 35

PM × Wind × Precip

PM2.5 at 11.1 µg/m³ (AQI 55) with a 0.73 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.73
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke

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 TREND50100WEDTHUFRISATSUNMONTUEWED7-DAY PM2.5 TREND · μg/m³300
Williams Canyon, CA
Sky cover · visibility · 24h
Cloud cover
75%
MOSTLY CLOUDY
100%0%−24h−18h−12h−6hnow
Visibility
33.0mi
UNLIMITED
96 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
16:38 UTC · Williams Canyon, 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
16:38 UTC · Williams Canyon, CA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Williams Canyon, CA
Satellite · infrared · animated
Williams Canyon, CA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Williams Canyon, CA
Almanac · Wednesday, June 17
A summer fog for fair, a winter fog for rain.
Civil dawn
5:12 AM
Sunrise
10:39 PM
Daylight
14h 24m
Sunset
1:03 PM
Civil dusk
8:33 PM
Planting note
Stake and prune tomato suckers. Watch for squash vine borers.
Williams Canyon, CA
The moon
Waxing Crescent
9% illuminated
Moonrise
8:15 AM
Moonset
10:11 PM
In sign
♌︎ Leo
Williams Canyon, CA
Microseason
Jun 16–20

Bay laurel fragrance sweetens shade

bird
Jan 146% of the yearDec 31

Read this microseason across nine climate regions →

Williams Canyon at a glance

  • Today vs. normal: 16°F below the seasonal normal for this latitude
  • Last frost: March 9 (climatological average for this latitude)
  • Microseason: Jun 16–20
  • Planting window: Stake and prune tomato suckers. Watch for squash vine borers.

16-Day Forecast — Williams Canyon

  1. Wed79°54°0%
  2. Thu69°58°0%
  3. Fri76°57°0%
  4. Sat75°56°0%
  5. Sun76°56°0%
  6. Mon80°57°0%
  7. Tue87°62°0%
  8. Wed91°66°0%
  9. Thu90°68°1%
  10. Fri87°65°0%
  11. Sat86°66°0%
  12. Sun82°62°0%
  13. Mon86°62°0%
  14. Tue92°63°0%
  15. Wed88°67°3%
  16. Thu89°69°10%

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

Right now in the garden

Peak growing season

As of June 17, 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 · June 16–20

Bay laurel fragrance sweetens shade

In cooler coastal canyons, bay laurel foliage releases its sharp, anise-like scent as temperatures climb.

Day 168 of 365 · Wedge 34 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

The year in Williams Canyon tops out in August (~77°F) and dips lowest in December (~59°F), with January wettest at 3.2 inches and August driest at 0.0 inches.

MonthMean tempPrecipRainy days
January60°3.2″5
February60°3.0″5
March63°1.8″3
April65°0.7″2
May68°0.4″1
June72°0.1″0
July76°0.1″0
August77°0.0″0
September76°0.1″0
October71°0.6″1
November65°1.0″2
December59°2.4″4

Frequently asked

When does it freeze in Williams Canyon?
Frost typically leaves Williams Canyon by mid-March and returns to Williams Canyon near mid-December.
What is the rainy season in Williams Canyon?
January is the wettest month in Williams Canyon, about 3.2 inches on average; the year totals roughly 14 inches.
What is the warmest month in Williams Canyon?
The warmest stretch in Williams Canyon comes in August, around 77°F on average.
What is the coldest month in Williams Canyon?
On average December is the chilliest month in Williams Canyon, about 59°F.
When can I start a vegetable garden in Williams Canyon?
Time tomatoes in Williams Canyon for two weeks after mid-March; peas and greens start at Williams Canyon's frost line.
How many rainy days does Williams Canyon get?
Williams Canyon records around 23 days of measurable precipitation annually.
What hardiness zone is Williams Canyon?
Williams Canyon sits in the USDA zone set by December lows near 59°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for Williams Canyon?
Williams Canyon'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 Williams Canyon?
See this week's day-by-day rain chances for Williams Canyon in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Williams Canyon?
Current conditions for Williams Canyon and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Williams Canyon forecast updated?
The Williams Canyon forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Williams Canyon?
Day length in Williams Canyon peaks around the June solstice — earliest sunrise and latest sunset — and is shortest near the December solstice.
How accurate is the weather forecast for Williams Canyon?
The next few days in Williams Canyon's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Williams Canyon's hot-summer Mediterranean climate in California pairs 60°F Januarys with 76°F Julys, 16°F apart across the seasons.

Williams Canyon sees close to 14 inches of precipitation annually, falling across some 23 wet days.

The 16°F gap between Williams Canyon's summer and winter, at 33.7°N, shapes Williams Canyon's frost calendar.

All cities in California →

Lake Forest, CA weather →

ZIP codes in Williams Canyon

  • 92676

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.