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
- TodayJul 4Overcast14%—93°62°—
- SundayJul 5Clear——95°68°+2°
- MondayJul 6Light Drizzle34%—101°69°+6°
- TuesdayJul 7Heavy Showers43%0.88″102°71°+1°
- WednesdayJul 8Overcast54%—84°70°-18°
- ThursdayJul 9Light Showers15%0.13″86°66°+2°
- FridayJul 10Mostly Clear18%—83°64°-3°
AQI 54 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 21.9 µg/m³ (AQI 75) with a 0.69 fine-to-coarse ratio and 5 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.
What's driving it
Ozone × UV × Sky
Ozone at AQI 47 now. With UV 7.5 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 33 around 1 PM.
- Present
- AQI 47
- UV peak
- 7.5 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 33
PM × Wind × Precip
PM2.5 at 21.9 µg/m³ (AQI 75) with a 0.69 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.69
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:39 PM
- Moonset
- 10:40 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Oacoma at a glance
- Today vs. normal: 19°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
- Sat93°62°14%
- Sun95°68°2%
- Mon101°69°34%
- Tue102°71°43%
- Wed84°70°54%
- Thu86°66°15%
- Fri83°64°18%
- Sat84°60°18%
- Sun90°64°7%
- Mon92°67°6%
- Tue98°66°9%
- Wed106°75°15%
- Thu93°77°13%
- Fri88°69°20%
- Sat87°63°12%
- Sun90°60°18%
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