Oldham, South Dakota Weather
Cicadas claim the afternoon. Day 13 of summer. Read this microseason across nine climate regions →
Oldham weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 3Overcast40%—80°63°—
- SaturdayJul 4Overcast14%—85°62°+5°
- SundayJul 5Overcast——86°60°+1°
- MondayJul 6Drizzle12%—89°62°+3°
- TuesdayJul 7Drizzle28%—93°68°+4°
- WednesdayJul 8Showers40%—77°66°-16°
- ThursdayJul 9Overcast27%—84°66°+7°
AQI 53 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 13.2 µg/m³ (AQI 59) with a 0.70 fine-to-coarse ratio and 6 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 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 47
- UV peak
- 2.5 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 47
PM × Wind × Precip
PM2.5 at 13.2 µg/m³ (AQI 59) with a 0.70 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.70
- 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
- 11:09 PM
- Moonset
- 9:22 AM
- In sign
- ♒︎ Aquarius
Cicadas claim the afternoon
Oldham at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: May 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 57051
16-Day Forecast — Oldham
- Fri79°63°40%
- Sat85°62°14%
- Sun86°60°4%
- Mon89°62°12%
- Tue93°68°28%
- Wed77°66°40%
- Thu84°66°27%
- Fri88°62°16%
- Sat89°66°16%
- Sun94°62°9%
- Mon94°66°10%
- Tue88°68°12%
- Wed92°62°13%
- Thu85°69°6%
- Fri73°58°17%
- Sat80°53°24%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 3, 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 — Oldham
SPC has placed Oldham in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 Oldham
- 57051