Weather in Mount Vernon, South Dakota
Roses Bloom Along the Shelter Rows. Day 59 of spring. Read this microseason across nine climate regions →
Mount Vernon, SD
Sunday, May 17 at 4:09 AM
67
°
Overcast
Feels like
58°
Humidity
32%
Wind
14 mph
Sunrise
6:06 AM
Sunset
8:52 PM
Mount Vernon, SD
Hour by hour · 24h
62°
11p
58°
12a
55°
1a
53°
2a
53°
3a
52°
4a
50°
5a
49°
6a
49°
7a
58°
8a
67°
9a
72°
10a
77°
11a
79°
12p
81°
1p
83°
2p
84°
3p
85°
4p
85°
5p
84°
6p
82°
7p
79°
8p
73°
9p
66°
10p
Mount Vernon, SD
7-day forecast
- TodayMay 16Overcast—81°46°
- SundayMay 17Heavy Rain46%75°54°
- MondayMay 18Light Rain67%53°42°
- TuesdayMay 19Heavy Drizzle63%56°40°
- WednesdayMay 20Overcast—68°37°
- ThursdayMay 21Overcast11%66°47°
- FridayMay 22Light Drizzle20%72°51°
Mount Vernon, SD
Next 24 hours · Cool now
Mount Vernon, SD
Anemometer · 24h winds · from true
From · True
ENE
059° · veering 93°
Direction
ENE
059°
Sustained
14
mph
Gust
24
mph
Peak 24h
34
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
−24h−18h−12h−6hnow
Mount Vernon, SD
Air quality
52
AQI
Moderate
- PM 2.5
- 5.7 μg/m³
- PM 10
- 6.8 μg/m³
- NO₂
- 2.7 μg/m³
- Ozone
- 87.0 μg/m³
- UV Index
- 0.0 Low
Mount Vernon, SD
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:34 AM
Sunrise
6:06 AM
Daylight
14h 46m
Sunset
8:52 PM
Civil dusk
2:26 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Mount Vernon, SD
The moon
New Moon
0% illuminated
- Moonrise
- 11:08 AM
- Moonset
- 2:28 AM
- In sign
- ♊︎ Gemini
Mount Vernon, SD
Microseason · 28 of 72
May 16–20
Roses Bloom Along the Shelter Rows
plant
Mount Vernon 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).