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

Weather in Lyons, South Dakota

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

Lyons, SD
Sunday, May 17 at 3:46 AM
67
°
Overcast
Feels like
57°
Humidity
27%
Wind
15 mph
Sunrise
6:00 AM
Sunset
8:47 PM
Lyons, SD
Hour by hour · 24h
66°
10p
64°
11p
60°
12a
56°
1a
54°
2a
51°
3a
51°
4a
49°
5a
50°
6a
53°
7a
59°
8a
70°
9a
78°
10a
82°
11a
82°
12p
84°
1p
85°
2p
86°
3p
87°
4p
87°
5p
84°
6p
81°
7p
78°
8p
74°
9p
L 49°H 87°
Lyons, SD
7-day forecast
  1. Today
    May 16
    Overcast
    12%
    81°47°
  2. Sunday
    May 17
    Heavy Rain
    43%
    73°54°
  3. Monday
    May 18
    Drizzle
    64%
    58°45°
  4. Tuesday
    May 19
    Light Drizzle
    64%
    52°40°
  5. Wednesday
    May 20
    Overcast
    64°36°
  6. Thursday
    May 21
    Overcast
    11%
    65°45°
  7. Friday
    May 22
    Light Drizzle
    25%
    64°53°
Lyons, SD
Anemometer · 24h winds · from true
NESW
From · True
NE
055° · veering 84°
Direction
NE
055°
Sustained
15
mph
Gust
26
mph
Peak 24h
37
avg 10
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 10 · pk 37 @ 3:00a
−24h−18h−12h−6hnow
Sustained 15 mph with gusts pulsing to 26 — flags snap, branches bend.
Lyons, SD
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
952.3
+1.0 mb in 3h · rising · 28.12 inHg
Now
952.3
mb
3h
+1.0
mb
12h
-4.2
mb
24h
+0.5
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 951958
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Lyons, SD
Air quality
55
AQI
Moderate
PM 2.5
6.1 μg/m³
PM 10
7.2 μg/m³
NO₂
2.4 μg/m³
Ozone
90.0 μg/m³
UV Index
0.0 Low
Lyons, SD
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 47m
Sunset
8:47 PM
Civil dusk
2:21 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Lyons, SD
The moon
New Moon
0% illuminated
Moonrise
11:02 AM
Moonset
2:22 AM
In sign
♊︎ Gemini
Lyons, SD
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 →

Lyons at a glance

  • Today vs. normal: 67°F — typical for the season
  • Last frost: May 8 (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 Lyons

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.