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

Weather in Louisville, Colorado

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

Louisville, CO
Sunday, May 17 at 2:12 AM
69
°
Overcast
Feels like
64°
Humidity
31%
Wind
5 mph
Sunrise
5:44 AM
Sunset
8:09 PM
Louisville, CO
Hour by hour · 24h
80°
8p
75°
9p
74°
10p
71°
11p
68°
12a
68°
1a
63°
2a
60°
3a
59°
4a
61°
5a
59°
6a
61°
7a
65°
8a
68°
9a
74°
10a
76°
11a
79°
12p
81°
1p
82°
2p
82°
3p
83°
4p
82°
5p
81°
6p
79°
7p
L 59°H 83°
Louisville, CO
7-day forecast
  1. Today
    May 16
    Overcast
    23%
    79°59°
  2. Sunday
    May 17
    Light Drizzle
    44%
    63°51°
  3. Monday
    May 18
    Snow
    100%
    49°33°
  4. Tuesday
    May 19
    Drizzle
    80%
    51°30°
  5. Wednesday
    May 20
    Overcast
    80%
    67°38°
  6. Thursday
    May 21
    Drizzle
    46%
    58°46°
  7. Friday
    May 22
    Overcast
    28%
    71°41°
Louisville, CO
Anemometer · 24h winds · from true
NESW
From · True
WNW
302° · backing 7°
Direction
WNW
302°
Sustained
5
mph
Gust
6
mph
Peak 24h
22
avg 7
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 7 · pk 22 @ 2:00a
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Louisville, CO
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
824.5
+1.5 mb in 3h · steady · 24.35 inHg
Now
824.5
mb
3h
+1.5
mb
12h
-7.4
mb
24h
-3.6
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 823834
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Louisville, CO
Air quality
87
AQI
Moderate
PM 2.5
6.0 μg/m³
PM 10
7.5 μg/m³
NO₂
10.5 μg/m³
Ozone
98.0 μg/m³
UV Index
0.0 Low
Louisville, 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 25m
Sunset
8:09 PM
Civil dusk
2:41 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Louisville, CO
The moon
New Moon
0% illuminated
Moonrise
11:52 AM
Moonset
2:43 AM
In sign
♉︎ Taurus
Louisville, 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 →

Louisville at a glance

  • Today vs. normal: 3°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 Louisville

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.