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

Weather in Rancho Mission Viejo, California

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

Rancho Mission Viejo, CA
Sunday, May 17 at 12:02 AM
66
°
Overcast
Feels like
65°
Humidity
72%
Wind
8 mph
Sunrise
5:48 AM
Sunset
7:44 PM
Rancho Mission Viejo, CA
Hour by hour · 24h
70°
5p
68°
6p
66°
7p
64°
8p
63°
9p
62°
10p
62°
11p
62°
12a
61°
1a
61°
2a
61°
3a
61°
4a
61°
5a
60°
6a
61°
7a
62°
8a
64°
9a
64°
10a
64°
11a
65°
12p
68°
1p
69°
2p
69°
3p
70°
4p
L 60°H 70°
Rancho Mission Viejo, CA
7-day forecast
  1. Today
    May 16
    Overcast
    71°58°
  2. Sunday
    May 17
    Overcast
    71°56°
  3. Monday
    May 18
    Overcast
    76°55°
  4. Tuesday
    May 19
    Overcast
    82°55°
  5. Wednesday
    May 20
    Overcast
    78°56°
  6. Thursday
    May 21
    Overcast
    76°54°
  7. Friday
    May 22
    Clear
    79°55°
Rancho Mission Viejo, CA
Anemometer · 24h winds · from true
NESW
From · True
SW
233° · veering 44°
Direction
SW
233°
Sustained
8
mph
Gust
9
mph
Peak 24h
13
avg 6
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 6 · pk 13 @ 4:00p
−24h−18h−12h−6hnow
Light breeze veering 44° from the sw.
Rancho Mission Viejo, CA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
996.0
+0.3 mb in 3h · falling · 29.41 inHg
Now
996.0
mb
3h
+0.3
mb
12h
-2.5
mb
24h
-2.2
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 995999
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Rancho Mission Viejo, CA
Air quality
45
AQI
Good
PM 2.5
10.0 μg/m³
PM 10
17.9 μg/m³
NO₂
0.9 μg/m³
Ozone
92.0 μg/m³
UV Index
1.6 Low
Rancho Mission Viejo, CA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
12:22 PM
Sunrise
5:48 AM
Daylight
13h 56m
Sunset
7:44 PM
Civil dusk
3:13 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Rancho Mission Viejo, CA
The moon
New Moon
0% illuminated
Moonrise
1:05 PM
Moonset
3:13 AM
In sign
♉︎ Taurus
Rancho Mission Viejo, 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 →

Rancho Mission Viejo at a glance

  • Today vs. normal: 12°F below the seasonal normal for this latitude
  • Last frost: March 8 (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 Rancho Mission Viejo

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.