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

Weather in Lone Tree, Colorado

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

Lone Tree, CO
Sunday, May 17 at 3:52 AM
61
°
Overcast
Feels like
56°
Humidity
41%
Wind
5 mph
Sunrise
5:44 AM
Sunset
8:07 PM
Lone Tree, CO
Hour by hour · 24h
71°
9p
69°
10p
68°
11p
64°
12a
62°
1a
60°
2a
58°
3a
57°
4a
55°
5a
51°
6a
57°
7a
66°
8a
69°
9a
72°
10a
74°
11a
76°
12p
78°
1p
78°
2p
78°
3p
77°
4p
77°
5p
75°
6p
73°
7p
69°
8p
L 51°H 78°
Lone Tree, CO
7-day forecast
  1. Today
    May 16
    Overcast
    22%
    74°55°
  2. Sunday
    May 17
    Rain
    30%
    71°50°
  3. Monday
    May 18
    Light Snow Shwrs
    99%
    49°33°
  4. Tuesday
    May 19
    Light Snow
    84%
    50°32°
  5. Wednesday
    May 20
    Drizzle
    84%
    66°41°
  6. Thursday
    May 21
    Light Drizzle
    59%
    59°45°
  7. Friday
    May 22
    Overcast
    34%
    69°42°
Lone Tree, CO
Anemometer · 24h winds · from true
NESW
From · True
S
172° · backing 85°
Direction
S
172°
Sustained
5
mph
Gust
5
mph
Peak 24h
19
avg 8
Beaufort · 2 · LIGHT 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 8 · pk 19 @ 6:00a
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Lone Tree, CO
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
805.9
0.0 mb in 3h · falling rapidly · 23.80 inHg
Now
805.9
mb
3h
0.0
mb
12h
-7.4
mb
24h
-4.0
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 804815
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Lone Tree, CO
Air quality
75
AQI
Moderate
PM 2.5
10.0 μg/m³
PM 10
11.5 μg/m³
NO₂
18.3 μg/m³
Ozone
87.0 μg/m³
UV Index
0.0 Low
Lone Tree, CO
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
11:15 AM
Sunrise
5:44 AM
Daylight
14h 23m
Sunset
8:07 PM
Civil dusk
2:39 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Lone Tree, CO
The moon
New Moon
0% illuminated
Moonrise
11:52 AM
Moonset
2:40 AM
In sign
♊︎ Gemini
Lone Tree, 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 →

Lone Tree at a glance

  • Today vs. normal: 11°F below the seasonal normal for this latitude
  • Last frost: April 13 (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 Lone Tree

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.