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Weather in Alamosa, Colorado

Saguaro crowns open white. Day 59 of spring. Read this microseason across nine climate regions →

Alamosa, CO
Sunday, May 17 at 1:04 AM
73
°
Clear
Feels like
59°
Humidity
9%
Wind
19 mph
Sunrise
5:53 AM
Sunset
8:06 PM
Alamosa, CO
Hour by hour · 24h
74°
7p
68°
8p
61°
9p
55°
10p
51°
11p
45°
12a
43°
1a
42°
2a
39°
3a
38°
4a
35°
5a
34°
6a
39°
7a
52°
8a
61°
9a
67°
10a
72°
11a
74°
12p
75°
1p
77°
2p
78°
3p
79°
4p
78°
5p
73°
6p
L 34°H 79°
Alamosa, CO
7-day forecast
  1. Today
    May 16
    Clear
    79°37°
  2. Sunday
    May 17
    Overcast
    71°42°
  3. Monday
    May 18
    Overcast
    58°42°
  4. Tuesday
    May 19
    Overcast
    68°35°
  5. Wednesday
    May 20
    Light Drizzle
    17%
    71°41°
  6. Thursday
    May 21
    Overcast
    27%
    69°41°
  7. Friday
    May 22
    Overcast
    11%
    68°40°
Alamosa, CO
Anemometer · 24h winds · from true
NESW
From · True
SW
232° · veering 41°
Direction
SW
232°
Sustained
19
mph
Gust
28
mph
Peak 24h
32
avg 10
Beaufort · 5 · FRESH 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 10 · pk 32 @ 4:00p
−24h−18h−12h−6hnow
Sustained 19 mph with gusts pulsing to 28 — flags snap, branches bend.
Alamosa, CO
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
765.2
+3.7 mb in 3h · falling · 22.60 inHg
Now
765.2
mb
3h
+3.7
mb
12h
-6.3
mb
24h
+1.5
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 759773
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Alamosa, CO
Air quality
74
AQI
Moderate
PM 2.5
1.6 μg/m³
PM 10
3.0 μg/m³
NO₂
1.0 μg/m³
Ozone
118.0 μg/m³
UV Index
0.3 Low
Alamosa, CO
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:25 AM
Sunrise
5:53 AM
Daylight
14h 13m
Sunset
8:06 PM
Civil dusk
2:36 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Alamosa, CO
The moon
New Moon
0% illuminated
Moonrise
12:04 PM
Moonset
2:37 AM
In sign
♉︎ Taurus
Alamosa, CO
Microseason · 28 of 72
May 16–20

Saguaro crowns open white

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Alamosa at a glance

  • Today vs. normal: 73°F — typical for the season
  • Last frost: April 1 (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 17, 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 Alamosa

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.