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

Weather in Isabel, South Dakota

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

Isabel, SD
Sunday, May 17 at 3:43 AM
57
°
Partly Cloudy
Feels like
47°
Humidity
42%
Wind
16 mph
Sunrise
5:13 AM
Sunset
8:10 PM
Isabel, SD
Hour by hour · 24h
60°
9p
56°
10p
53°
11p
52°
12a
51°
1a
50°
2a
49°
3a
46°
4a
46°
5a
47°
6a
53°
7a
59°
8a
63°
9a
66°
10a
69°
11a
71°
12p
72°
1p
73°
2p
74°
3p
74°
4p
73°
5p
73°
6p
69°
7p
62°
8p
L 46°H 74°
Isabel, SD
7-day forecast
  1. Today
    May 16
    Overcast
    71°45°
  2. Sunday
    May 17
    Rain
    71%
    55°45°
  3. Monday
    May 18
    Heavy Drizzle
    80%
    46°40°
  4. Tuesday
    May 19
    Overcast
    65%
    58°38°
  5. Wednesday
    May 20
    Drizzle
    11%
    72°40°
  6. Thursday
    May 21
    Overcast
    15%
    64°49°
  7. Friday
    May 22
    Overcast
    19%
    74°48°
Isabel, SD
Anemometer · 24h winds · from true
NESW
From · True
E
087° · veering 114°
Direction
E
087°
Sustained
16
mph
Gust
25
mph
Peak 24h
39
avg 13
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 13 · pk 39 @ 12:00a
−24h−18h−12h−6hnow
Sustained 16 mph with gusts pulsing to 25 — flags snap, branches bend.
Isabel, SD
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
923.2
+1.3 mb in 3h · steady · 27.26 inHg
Now
923.2
mb
3h
+1.3
mb
12h
-5.5
mb
24h
-1.7
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 921930
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Isabel, SD
Air quality
47
AQI
Good
PM 2.5
4.3 μg/m³
PM 10
4.8 μg/m³
NO₂
1.1 μg/m³
Ozone
87.0 μg/m³
UV Index
0.0 Low
Isabel, SD
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:41 AM
Sunrise
5:13 AM
Daylight
14h 57m
Sunset
8:10 PM
Civil dusk
2:45 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Isabel, SD
The moon
New Moon
0% illuminated
Moonrise
11:13 AM
Moonset
2:50 AM
In sign
♊︎ Gemini
Isabel, 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 →

Isabel at a glance

  • Today vs. normal: 9°F below the seasonal normal for this latitude
  • Last frost: May 18 (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 Isabel

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.