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

Weather in Broomfield, Colorado

High country wildflowers peak. Day 59 of spring. Read this microseason across nine climate regions →

Broomfield, CO
Sunday, May 17 at 3:52 AM
66
°
Overcast
Feels like
62°
Humidity
36%
Wind
3 mph
Sunrise
5:43 AM
Sunset
8:09 PM
Broomfield, CO
Hour by hour · 24h
74°
9p
72°
10p
70°
11p
68°
12a
65°
1a
62°
2a
60°
3a
57°
4a
58°
5a
56°
6a
57°
7a
64°
8a
67°
9a
72°
10a
75°
11a
77°
12p
79°
1p
81°
2p
82°
3p
82°
4p
81°
5p
82°
6p
79°
7p
78°
8p
L 56°H 82°
Broomfield, CO
7-day forecast
  1. Today
    May 16
    Light Drizzle
    19%
    78°56°
  2. Sunday
    May 17
    Overcast
    35%
    68°50°
  3. Monday
    May 18
    Snow
    99%
    49°31°
  4. Tuesday
    May 19
    Light Drizzle
    78%
    48°30°
  5. Wednesday
    May 20
    Overcast
    78%
    68°37°
  6. Thursday
    May 21
    Heavy Drizzle
    44%
    60°44°
  7. Friday
    May 22
    Overcast
    29%
    70°42°
Broomfield, CO
Anemometer · 24h winds · from true
NESW
From · True
ENE
065° · veering 116°
Direction
ENE
065°
Sustained
3
mph
Gust
6
mph
Peak 24h
22
avg 8
Beaufort · 1 · LIGHT AIR
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 8 · pk 22 @ 2:00p
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Broomfield, CO
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
825.4
-1.9 mb in 3h · falling rapidly · 24.37 inHg
Now
825.4
mb
3h
-1.9
mb
12h
-7.1
mb
24h
-4.0
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 824835
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Broomfield, CO
Air quality
79
AQI
Moderate
PM 2.5
6.7 μg/m³
PM 10
7.8 μg/m³
NO₂
12.9 μg/m³
Ozone
84.0 μg/m³
UV Index
0.0 Low
Broomfield, CO
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:14 AM
Sunrise
5:43 AM
Daylight
14h 26m
Sunset
8:09 PM
Civil dusk
2:41 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Broomfield, CO
The moon
New Moon
0% illuminated
Moonrise
11:52 AM
Moonset
2:42 AM
In sign
♊︎ Gemini
Broomfield, CO
Microseason · 28 of 72
May 16–20

High country wildflowers peak

bird
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Broomfield 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 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 Broomfield

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.