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

Weather in Granby, Colorado

High country wildflowers peak. Day 58 of spring. Read this microseason across nine climate regions →

Granby, CO
Saturday, May 16 at 10:59 PM
66
°
Overcast
Feels like
48°
Humidity
19%
Wind
30 mph
Sunrise
5:46 AM
Sunset
8:13 PM
Granby, CO
Hour by hour · 24h
71°
4p
71°
5p
69°
6p
67°
7p
62°
8p
57°
9p
53°
10p
50°
11p
48°
12a
45°
1a
45°
2a
43°
3a
41°
4a
37°
5a
36°
6a
37°
7a
44°
8a
48°
9a
55°
10a
60°
11a
64°
12p
67°
1p
69°
2p
70°
3p
L 36°H 71°
Granby, CO
7-day forecast
  1. Today
    May 16
    Overcast
    15%
    67°39°
  2. Sunday
    May 17
    Light Drizzle
    38%
    65°39°
  3. Monday
    May 18
    Light Snow Shwrs
    97%
    49°31°
  4. Tuesday
    May 19
    Light Snow Shwrs
    64%
    49°29°
  5. Wednesday
    May 20
    Overcast
    36%
    59°27°
  6. Thursday
    May 21
    Light Snow
    29%
    52°34°
  7. Friday
    May 22
    Overcast
    15%
    62°29°
Granby, CO
Anemometer · 24h winds · from true
NESW
From · True
W
278° · veering 143°
Direction
W
278°
Sustained
30
mph
Gust
36
mph
Peak 24h
36
avg 7
Beaufort · 6 · STRONG 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 7 · pk 36
−24h−18h−12h−6hnow
Steady wind from the w at 30 mph.
Granby, CO
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
754.0
+0.3 mb in 3h · falling rapidly · 22.27 inHg
Now
754.0
mb
3h
+0.3
mb
12h
-4.8
mb
24h
-0.5
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 751759
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Granby, CO
Air quality
86
AQI
Moderate
PM 2.5
1.1 μg/m³
PM 10
1.6 μg/m³
NO₂
0.3 μg/m³
Ozone
128.0 μg/m³
UV Index
3.3 Moderate
Granby, CO
Almanac · Saturday, May 16
Flowers blooming in late autumn, a sure sign of a bad winter coming.
Civil dawn
11:17 AM
Sunrise
5:46 AM
Daylight
14h 27m
Sunset
8:13 PM
Civil dusk
2:44 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Granby, CO
The moon
New Moon
0% illuminated
Moonrise
11:11 AM
Moonset
1:28 AM
In sign
♉︎ Taurus
Granby, CO
Microseason · 28 of 72
May 16–20

High country wildflowers peak

weather
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Granby at a glance

  • Today vs. normal: 6°F below the seasonal normal for this latitude
  • Last frost: April 16 (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.

ZIP codes in Granby

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.