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

Weather in Arnold, California

Fog and sun in daily rhythm. Day 58 of spring. Read this microseason across nine climate regions →

Arnold, CA
Saturday, May 16 at 11:57 PM
63
°
Clear
Feels like
57°
Humidity
44%
Wind
11 mph
Sunrise
5:49 AM
Sunset
8:06 PM
Arnold, CA
Hour by hour · 24h
71°
4p
72°
5p
70°
6p
67°
7p
62°
8p
61°
9p
59°
10p
56°
11p
55°
12a
55°
1a
53°
2a
53°
3a
55°
4a
54°
5a
54°
6a
57°
7a
64°
8a
66°
9a
67°
10a
69°
11a
70°
12p
71°
1p
72°
2p
72°
3p
L 53°H 72°
Arnold, CA
7-day forecast
  1. Today
    May 16
    Overcast
    64°49°
  2. Sunday
    May 17
    Mostly Clear
    59°44°
  3. Monday
    May 18
    Clear
    67°42°
  4. Tuesday
    May 19
    Clear
    73°47°
  5. Wednesday
    May 20
    Overcast
    76°52°
  6. Thursday
    May 21
    Overcast
    79°55°
  7. Friday
    May 22
    Mostly Clear
    79°55°
Arnold, CA
Anemometer · 24h winds · from true
NESW
From · True
NNW
334° · steady
Direction
NNW
334°
Sustained
11
mph
Gust
16
mph
Peak 24h
23
avg 8
Beaufort · 3 · GENTLE 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 8 · pk 23 @ 8:00p
−24h−18h−12h−6hnow
Light breeze holding from the nnw.
Arnold, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
871.7
+2.5 mb in 3h · falling rapidly · 25.74 inHg
Now
871.7
mb
3h
+2.5
mb
12h
-1.2
mb
24h
+2.1
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 867873
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Arnold, CA
Air quality
48
AQI
Good
PM 2.5
4.7 μg/m³
PM 10
7.6 μg/m³
NO₂
0.3 μg/m³
Ozone
107.0 μg/m³
UV Index
3.9 Moderate
Arnold, CA
Almanac · Saturday, May 16
Flowers blooming in late autumn, a sure sign of a bad winter coming.
Civil dawn
12:21 PM
Sunrise
5:49 AM
Daylight
14h 17m
Sunset
8:06 PM
Civil dusk
3:37 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Arnold, CA
The moon
New Moon
0% illuminated
Moonrise
12:16 PM
Moonset
2:24 AM
In sign
♉︎ Taurus
Arnold, CA
Microseason · 28 of 72
May 16–20

Fog and sun in daily rhythm

weather
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Arnold at a glance

  • Today vs. normal: 10°F below the seasonal normal for this latitude
  • Last frost: April 5 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Warm-season window is open

As of May 16, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.

ZIP codes in Arnold

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.