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

Oacoma, South Dakota Weather

Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →

Oacoma weather forecast — hour by hour, 7-day outlook, NOAA radar

Oacoma, SD
Saturday, July 4 at 3:01 PM
91
°
Mostly Clear
Feels like
98°
Humidity
44%
Wind
2 mph
Sunrise
1:01 AM
Sunset
4:22 PM
Oacoma, SD
Hour by hour · 24h
24-Hour ForecastOacoma, SD: 24-hour forecast. Temperatures range from 69 to 94 degrees Fahrenheit.
L 69°H 94°
Oacoma, SD
7-day forecast
  1. Today
    Jul 4
    Overcast
    14%
    93°62°
  2. Sunday
    Jul 5
    Clear
    95°69°+2°
  3. Monday
    Jul 6
    Light Drizzle
    34%
    101°69°+6°
  4. Tuesday
    Jul 7
    Heavy Showers
    43%
    0.88″
    102°71°+1°
  5. Wednesday
    Jul 8
    Overcast
    54%
    84°70°-18°
  6. Thursday
    Jul 9
    Light Showers
    15%
    0.13″
    86°66°+2°
  7. Friday
    Jul 10
    Mostly Clear
    18%
    83°64°-3°
Oacoma, SD
Anemometer · 24h winds · from true
NESW
From · True
SSE
159° · veering 78°
Direction
SSE
159°
Sustained
2
mph
Gust
6
mph
Peak 24h
10
avg 4
Beaufort · 1 · LIGHT AIR
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 4 · pk 10 @ 6:00p
010MPHB1B2B3B4-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 116SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 78° from the sse.
Oacoma, SD
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
967.1
+0.2 mb in 3h · steady · 28.56 inHg
Now
967.1
mb
3h
+0.2
mb
12h
+2.9
mb
24h
+1.8
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 964967
955960965970975-21h-18h-15h-12h-9h-6h-3h-24hNOW967.3963.9967.1
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Oacoma, SD
Air quality
56
AQI
Moderate
+5 in 6h

AQI 56 (Moderate), driven by PM2.5. AQI up 5 over the last 6 hours (gradual rise). PM2.5 at 20.2 µg/m³ (AQI 72) with a 0.71 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERModerate
20.2μg/m³
PM 10Good
29μg/m³
NO₂Good
0μg/m³
OzoneUnhealthy SG
104μg/m³
UV IndexHigh
5.9

What's driving it

Ozone × UV × Sky

Ozone at AQI 49 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.

Present
AQI 49
UV peak
5.6 at earlier today
Sky at peak
overcast
Projected peak
AQI 49

PM × Wind × Precip

PM2.5 at 20.2 µg/m³ (AQI 72) with a 0.71 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.71
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke
Oacoma, SD
Sky cover · visibility · 24h
Cloud cover
21%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
94.0mi
UNLIMITED
95 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
20:01 UTC · Oacoma, SD · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
20:01 UTC · Oacoma, SD · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Oacoma, SD
Satellite · infrared · animated
Oacoma, SD
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Oacoma, SD
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:26 AM
Sunrise
1:01 AM
Daylight
15h 21m
Sunset
4:22 PM
Civil dusk
9:59 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Oacoma, SD
The moon
Waning Gibbous
79% illuminated
Moonrise
11:39 PM
Moonset
10:40 AM
In sign
♓︎ Pisces
Oacoma, SD
Microseason
Jul 1–5

Cicadas claim the afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Oacoma at a glance

  • Today vs. normal: 23°F above the seasonal normal for this latitude
  • Last frost: May 9 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 57365

16-Day Forecast — Oacoma

  1. Sat93°62°14%
  2. Sun95°68°1%
  3. Mon101°69°34%
  4. Tue102°71°43%
  5. Wed84°70°54%
  6. Thu86°66°15%
  7. Fri83°64°18%
  8. Sat84°60°18%
  9. Sun90°64°7%
  10. Mon92°67°6%
  11. Tue98°66°9%
  12. Wed106°75°15%
  13. Thu93°77°13%
  14. Fri88°69°20%
  15. Sat87°63°10%
  16. Sun90°60°13%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Oacoma

SPC includes Oacoma in the general thunderstorm area today — no severe risk, but storms are possible.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWNONENo severe risk
  • DAY 3TSTMGeneral Thunderstorms

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

ZIP codes in Oacoma

  • 57365

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.