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

Weather in Rapid City, South Dakota

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

Rapid City, SD
Sunday, May 17 at 2:33 AM
69
°
Partly Cloudy
Feels like
61°
Humidity
29%
Wind
10 mph
Sunrise
5:25 AM
Sunset
8:13 PM
Rapid City, SD
Hour by hour · 24h
73°
8p
65°
9p
60°
10p
56°
11p
54°
12a
53°
1a
52°
2a
52°
3a
49°
4a
51°
5a
53°
6a
58°
7a
63°
8a
65°
9a
69°
10a
72°
11a
75°
12p
75°
1p
78°
2p
79°
3p
79°
4p
77°
5p
76°
6p
73°
7p
L 49°H 79°
Rapid City, SD
7-day forecast
  1. Today
    May 16
    Light Drizzle
    34%
    79°48°
  2. Sunday
    May 17
    Light Rain
    47%
    60°48°
  3. Monday
    May 18
    Light Snow
    93%
    48°35°
  4. Tuesday
    May 19
    Overcast
    57%
    62°29°
  5. Wednesday
    May 20
    Overcast
    17%
    73°42°
  6. Thursday
    May 21
    Overcast
    34%
    65°48°
  7. Friday
    May 22
    Overcast
    24%
    72°47°
Rapid City, SD
Anemometer · 24h winds · from true
NESW
From · True
E
098° · veering 142°
Direction
E
098°
Sustained
10
mph
Gust
19
mph
Peak 24h
33
avg 10
Beaufort · 3 · GENTLE 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 33 @ 8:00p
−24h−18h−12h−6hnow
Light breeze veering 142° from the e.
Rapid City, SD
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
889.8
+0.6 mb in 3h · falling · 26.28 inHg
Now
889.8
mb
3h
+0.6
mb
12h
-6.0
mb
24h
-2.4
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 888898
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Rapid City, SD
Air quality
51
AQI
Moderate
PM 2.5
2.1 μg/m³
PM 10
2.7 μg/m³
NO₂
1.1 μg/m³
Ozone
103.0 μg/m³
UV Index
0.0 Low
Rapid City, SD
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:53 AM
Sunrise
5:25 AM
Daylight
14h 48m
Sunset
8:13 PM
Civil dusk
2:47 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Rapid City, SD
The moon
New Moon
0% illuminated
Moonrise
11:27 AM
Moonset
2:51 AM
In sign
♊︎ Gemini
Rapid City, 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 →

Rapid City at a glance

  • Today vs. normal: 69°F — typical for the season
  • Last frost: May 10 (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 Rapid City

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.