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

Weather in Norwalk, California

Fog and sun in daily rhythm. Day 59 of spring. Read this microseason across nine climate regions →

Norwalk, CA
Sunday, May 17 at 3:46 AM
63
°
Clear
Feels like
62°
Humidity
74%
Wind
5 mph
Sunrise
5:50 AM
Sunset
7:47 PM
Norwalk, CA
Hour by hour · 24h
66°
8p
63°
9p
62°
10p
62°
11p
61°
12a
61°
1a
61°
2a
62°
3a
62°
4a
63°
5a
63°
6a
63°
7a
63°
8a
64°
9a
65°
10a
67°
11a
69°
12p
70°
1p
72°
2p
73°
3p
73°
4p
72°
5p
71°
6p
69°
7p
L 61°H 73°
Norwalk, CA
7-day forecast
  1. Today
    May 16
    Overcast
    75°60°
  2. Sunday
    May 17
    Overcast
    72°60°
  3. Monday
    May 18
    Overcast
    77°56°
  4. Tuesday
    May 19
    Partly Cloudy
    83°63°
  5. Wednesday
    May 20
    Overcast
    81°65°
  6. Thursday
    May 21
    Overcast
    78°64°
  7. Friday
    May 22
    Clear
    80°63°
Norwalk, CA
Anemometer · 24h winds · from true
NESW
From · True
S
185° · backing 89°
Direction
S
185°
Sustained
5
mph
Gust
9
mph
Peak 24h
14
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 14 @ 4:00p
−24h−18h−12h−6hnow
Light breeze backing 89° from the s.
Norwalk, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1007.4
+0.6 mb in 3h · falling · 29.75 inHg
Now
1007.4
mb
3h
+0.6
mb
12h
-0.3
mb
24h
-1.4
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10061009
−24h−18h−12h−6hnow
Damp, unsettled regime — wet weather lingers nearby.
Norwalk, CA
Air quality
58
AQI
Moderate
PM 2.5
12.8 μg/m³
PM 10
20.0 μg/m³
NO₂
8.4 μg/m³
Ozone
94.0 μg/m³
UV Index
0.0 Low
Norwalk, CA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
12:24 PM
Sunrise
5:50 AM
Daylight
13h 57m
Sunset
7:47 PM
Civil dusk
3:16 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Norwalk, CA
The moon
New Moon
0% illuminated
Moonrise
1:06 PM
Moonset
3:16 AM
In sign
♊︎ Gemini
Norwalk, CA
Microseason · 28 of 72
May 16–20

Fog and sun in daily rhythm

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Norwalk at a glance

  • Today vs. normal: 15°F below the seasonal normal for this latitude
  • Last frost: March 10 (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

Peak growing season

As of May 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.

ZIP codes in Norwalk

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.