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Weather in Grenville, South Dakota

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

Grenville, SD
Sunday, May 17 at 2:36 AM
54
°
Clear
Feels like
46°
Humidity
42%
Wind
11 mph
Sunrise
5:57 AM
Sunset
8:54 PM
Grenville, SD
Hour by hour · 24h
66°
9p
62°
10p
58°
11p
56°
12a
54°
1a
51°
2a
49°
3a
49°
4a
48°
5a
47°
6a
49°
7a
55°
8a
60°
9a
64°
10a
69°
11a
73°
12p
76°
1p
77°
2p
78°
3p
77°
4p
77°
5p
77°
6p
76°
7p
72°
8p
L 47°H 78°
Grenville, SD
7-day forecast
  1. Today
    May 16
    Clear
    70°43°
  2. Sunday
    May 17
    Heavy Rain
    50%
    67°45°
  3. Monday
    May 18
    Rain
    78%
    50°38°
  4. Tuesday
    May 19
    Light Snow Shwrs
    78%
    45°37°
  5. Wednesday
    May 20
    Overcast
    63°34°
  6. Thursday
    May 21
    Overcast
    17%
    65°47°
  7. Friday
    May 22
    Light Drizzle
    18%
    67°51°
Grenville, SD
Anemometer · 24h winds · from true
NESW
From · True
NE
045° · veering 66°
Direction
NE
045°
Sustained
11
mph
Gust
18
mph
Peak 24h
25
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 25 @ 2:00a
−24h−18h−12h−6hnow
Light breeze veering 66° from the ne.
Grenville, SD
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
944.3
-0.5 mb in 3h · falling rapidly · 27.89 inHg
Now
944.3
mb
3h
-0.5
mb
12h
-3.4
mb
24h
+3.1
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 941948
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Grenville, SD
Air quality
42
AQI
Good
PM 2.5
0.8 μg/m³
PM 10
0.9 μg/m³
NO₂
1.6 μg/m³
Ozone
72.0 μg/m³
UV Index
0.0 Low
Grenville, SD
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:24 AM
Sunrise
5:57 AM
Daylight
14h 57m
Sunset
8:54 PM
Civil dusk
2:30 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Grenville, SD
The moon
New Moon
0% illuminated
Moonrise
10:56 AM
Moonset
2:32 AM
In sign
♊︎ Gemini
Grenville, 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 →

Grenville at a glance

  • Today vs. normal: 12°F below the seasonal normal for this latitude
  • Last frost: May 19 (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 Grenville

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.