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

Weather in Los Alamos, California

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

Los Alamos, CA
Saturday, May 16 at 11:59 PM
67
°
Clear
Feels like
60°
Humidity
48%
Wind
18 mph
Sunrise
5:57 AM
Sunset
7:58 PM
Los Alamos, CA
Hour by hour · 24h
72°
4p
71°
5p
68°
6p
65°
7p
61°
8p
57°
9p
56°
10p
55°
11p
55°
12a
53°
1a
53°
2a
52°
3a
54°
4a
55°
5a
52°
6a
52°
7a
55°
8a
58°
9a
62°
10a
66°
11a
69°
12p
73°
1p
74°
2p
70°
3p
L 52°H 74°
Los Alamos, CA
7-day forecast
  1. Today
    May 16
    Foggy
    72°50°
  2. Sunday
    May 17
    Overcast
    73°48°
  3. Monday
    May 18
    Partly Cloudy
    79°47°
  4. Tuesday
    May 19
    Clear
    87°54°
  5. Wednesday
    May 20
    Overcast
    87°55°
  6. Thursday
    May 21
    Overcast
    85°51°
  7. Friday
    May 22
    Overcast
    84°51°
Los Alamos, CA
Anemometer · 24h winds · from true
NESW
From · True
NW
321° · veering 15°
Direction
NW
321°
Sustained
18
mph
Gust
23
mph
Peak 24h
24
avg 11
Beaufort · 4 · MOD 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 11 · pk 24 @ 5:00p
−24h−18h−12h−6hnow
A fresh breeze drives the nw-bound air across the harbor.
Los Alamos, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
990.8
+1.0 mb in 3h · falling · 29.26 inHg
Now
990.8
mb
3h
+1.0
mb
12h
-1.5
mb
24h
-1.1
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 989993
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Los Alamos, CA
Air quality
41
AQI
Good
PM 2.5
8.7 μg/m³
PM 10
14.7 μg/m³
NO₂
0.4 μg/m³
Ozone
91.0 μg/m³
UV Index
4.1 Moderate
Los Alamos, CA
Almanac · Saturday, May 16
Flowers blooming in late autumn, a sure sign of a bad winter coming.
Civil dawn
12:30 PM
Sunrise
5:57 AM
Daylight
14h 01m
Sunset
7:58 PM
Civil dusk
3:27 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Los Alamos, CA
The moon
New Moon
0% illuminated
Moonrise
12:26 PM
Moonset
2:14 AM
In sign
♉︎ Taurus
Los Alamos, 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 →

Los Alamos at a glance

  • Today vs. normal: 10°F below the seasonal normal for this latitude
  • Last frost: March 15 (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 16, 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 Los Alamos

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.