Weather StoryAlmanac, microseasons, and the day's weather story.

Larkspur, California Weather

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

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

Larkspur, CA
Sunday, July 5 at 9:59 AM
64
°
Mostly Clear
Feels like
66°
Humidity
80%
Wind
3 mph
Sunrise
10:53 PM
Sunset
1:35 PM
Larkspur, CA
Hour by hour · 24h
24-Hour ForecastLarkspur, CA: 24-hour forecast. Temperatures range from 53 to 72 degrees Fahrenheit.
L 53°H 72°
Larkspur, CA
7-day forecast
  1. Today
    Jul 5
    Overcast
    72°53°
  2. Monday
    Jul 6
    Foggy
    71°53°-1°
  3. Tuesday
    Jul 7
    Overcast
    70°53°-1°
  4. Wednesday
    Jul 8
    Mostly Clear
    75°51°+5°
  5. Thursday
    Jul 9
    Mostly Clear
    76°54°+1°
  6. Friday
    Jul 10
    Overcast
    76°53°
  7. Saturday
    Jul 11
    Overcast
    77°55°+1°
Larkspur, CA
Anemometer · 24h winds · from true
NESW
From · True
SE
132° · backing 43°
Direction
SE
132°
Sustained
3
mph
Gust
3
mph
Peak 24h
13
avg 4
Beaufort · 1 · LIGHT AIR
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 13 @ 8:00a
010MPHB1B2B3B4-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 93SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Larkspur, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1016.2
+1.4 mb in 3h · rising · 30.01 inHg
Now
1016.2
mb
3h
+1.4
mb
12h
+1.4
mb
24h
+0.1
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10141017
1010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY-21h-18h-15h-12h-9h-6h-3h-24hNOW1016.51014.21016.5
−24h−18h−12h−6hnow
Fair and building — a clean high settles over the region.
Larkspur, CA
Air quality
27
AQI
Good
-1 in 6h

AQI 27 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points).

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

PM 2.5Good
3.5μg/m³
PM 10Good
5μg/m³
NO₂Good
4μg/m³
OzoneDRIVERGood
47μg/m³
UV IndexLow
1.3
Larkspur, CA
Sky cover · visibility · 24h
Cloud cover
36%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
47.3mi
UNLIMITED
113 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
16:59 UTC · Larkspur, 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
16:59 UTC · Larkspur, CA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Larkspur, CA
Satellite · infrared · animated
Larkspur, CA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Larkspur, CA
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:23 AM
Sunrise
10:53 PM
Daylight
14h 42m
Sunset
1:35 PM
Civil dusk
9:08 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Larkspur, CA
The moon
Waning Gibbous
71% illuminated
Moonrise
11:29 PM
Moonset
11:29 AM
In sign
♓︎ Pisces
Larkspur, 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 →

Larkspur at a glance

  • Today vs. normal: 10°F below the seasonal normal for this latitude
  • Last frost: April 4 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 94939

16-Day Forecast — Larkspur

  1. Sun74°53°3%
  2. Mon71°53°1%
  3. Tue70°53°0%
  4. Wed75°51°0%
  5. Thu76°54°0%
  6. Fri76°53°0%
  7. Sat77°55°1%
  8. Sun77°54°1%
  9. Mon90°60°3%
  10. Tue76°59°4%
  11. Wed65°57°0%
  12. Thu95°62°1%
  13. Fri94°64°0%
  14. Sat100°68°0%
  15. Sun76°57°3%
  16. Mon74°54°3%

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

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.

ZIP codes in Larkspur

  • 94939
  • 94904
  • 94977

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.