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

Weather in Le Mars, Iowa

Roses Bloom Along the Shelter Rows. Day 59 of spring. Read this microseason across nine climate regions →

Le Mars, IA
Sunday, May 17 at 3:54 AM
71
°
Partly Cloudy
Feels like
62°
Humidity
26%
Wind
15 mph
Sunrise
6:00 AM
Sunset
8:41 PM
Le Mars, IA
Hour by hour · 24h
72°
10p
69°
11p
67°
12a
65°
1a
62°
2a
61°
3a
57°
4a
55°
5a
53°
6a
53°
7a
62°
8a
70°
9a
76°
10a
83°
11a
85°
12p
87°
1p
89°
2p
90°
3p
89°
4p
91°
5p
91°
6p
88°
10%
7p
82°
13%
8p
80°
9p
L 53°H 91°
Le Mars, IA
7-day forecast
  1. Today
    May 16
    Overcast
    83°50°
  2. Sunday
    May 17
    Thunderstorm
    59%
    81°62°
  3. Monday
    May 18
    Heavy Rain
    88%
    64°51°
  4. Tuesday
    May 19
    Overcast
    88%
    57°43°
  5. Wednesday
    May 20
    Overcast
    64°40°
  6. Thursday
    May 21
    Overcast
    67°47°
  7. Friday
    May 22
    Heavy Drizzle
    17%
    61°54°
Le Mars, IA
Anemometer · 24h winds · from true
NESW
From · True
ENE
071° · veering 77°
Direction
ENE
071°
Sustained
15
mph
Gust
24
mph
Peak 24h
32
avg 11
Beaufort · 4 · MOD 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 11 · pk 32 @ 1:00a
−24h−18h−12h−6hnow
Sustained 15 mph with gusts pulsing to 24 — flags snap, branches bend.
Le Mars, IA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
962.3
-0.9 mb in 3h · rising · 28.42 inHg
Now
962.3
mb
3h
-0.9
mb
12h
-3.9
mb
24h
-0.4
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 962968
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Le Mars, IA
Air quality
58
AQI
Moderate
PM 2.5
4.1 μg/m³
PM 10
5.0 μg/m³
NO₂
1.8 μg/m³
Ozone
99.0 μg/m³
UV Index
0.0 Low
Le Mars, IA
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:29 AM
Sunrise
6:00 AM
Daylight
14h 41m
Sunset
8:41 PM
Civil dusk
2:15 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Le Mars, IA
The moon
New Moon
0% illuminated
Moonrise
11:03 AM
Moonset
2:15 AM
In sign
♊︎ Gemini
Le Mars, IA
Microseason · 28 of 72
May 16–20

Roses Bloom Along the Shelter Rows

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Le Mars at a glance

  • Today vs. normal: 71°F — typical for the season
  • Last frost: May 3 (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

Cool-season window is open

As of May 17, the cool-season window is open or about to open. Direct-sow peas, lettuce, spinach, radishes, and brassicas now. Hold off on warm-season crops until 1–2 weeks after the last spring frost (around May).

ZIP codes in Le Mars

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.