Weather in Alto, California
Fog and sun in daily rhythm. Day 58 of spring. Read this microseason across nine climate regions →
Alto, CA
Saturday, May 16 at 11:58 PM
73
°
Clear
Feels like
67°
Humidity
37%
Wind
13 mph
Sunrise
5:58 AM
Sunset
8:14 PM
Alto, CA
Hour by hour · 24h
80°
4p
80°
5p
77°
6p
74°
7p
67°
8p
59°
9p
58°
10p
56°
11p
54°
12a
53°
1a
53°
2a
53°
3a
52°
4a
51°
5a
49°
6a
52°
7a
59°
8a
64°
9a
70°
10a
73°
11a
77°
12p
80°
1p
81°
2p
81°
3p
Alto, CA
7-day forecast
- TodayMay 16Overcast—75°55°
- SundayMay 17Overcast—75°54°
- MondayMay 18Clear—79°57°
- TuesdayMay 19Partly Cloudy—81°52°
- WednesdayMay 20Overcast—69°50°
- ThursdayMay 21Overcast—66°51°
- FridayMay 22Foggy—66°52°
Alto, CA
Next 24 hours · Mild now
Alto, CA
Anemometer · 24h winds · from true
From · True
NW
325° · backing 65°
Direction
NW
325°
Sustained
13
mph
Gust
21
mph
Peak 24h
37
avg 12
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
−24h−18h−12h−6hnow
Alto, CA
Air quality
38
AQI
Good
- PM 2.5
- 6.7 μg/m³
- PM 10
- 10.4 μg/m³
- NO₂
- 1.1 μg/m³
- Ozone
- 83.0 μg/m³
- UV Index
- 4.1 Moderate
Alto, CA
Almanac · Saturday, May 16
Flowers blooming in late autumn, a sure sign of a bad winter coming.
Civil dawn
12:30 PM
Sunrise
5:58 AM
Daylight
14h 16m
Sunset
8:14 PM
Civil dusk
3:44 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Alto, CA
The moon
New Moon
0% illuminated
- Moonrise
- 12:26 PM
- Moonset
- 2:32 AM
- In sign
- ♉︎ Taurus
Alto, CA
Microseason · 28 of 72
May 16–20
Fog and sun in daily rhythm
weather
Alto at a glance
- Today vs. normal: 73°F — typical for the season
- Last frost: April 3 (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.