Carthage, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Carthage weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——87°63°—
- SundayJul 5Partly Cloudy——89°66°+2°
- MondayJul 6Light Showers27%—93°67°+4°
- TuesdayJul 7Thunderstorm32%—98°68°+5°
- WednesdayJul 8Showers65%0.06″83°68°-15°
- ThursdayJul 9Light Drizzle16%0.04″81°61°-2°
- FridayJul 10Partly Cloudy20%—79°61°-2°
AQI 50 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 12.2 µg/m³ (AQI 57) with a 0.74 fine-to-coarse ratio and 4 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 49 now. With UV 6.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 42 around 1 PM.
- Present
- AQI 49
- UV peak
- 6.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 42
PM × Wind × Precip
PM2.5 at 12.2 µg/m³ (AQI 57) with a 0.74 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.74
- Wind
- calm
- 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
- 11:33 PM
- Moonset
- 10:33 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Carthage at a glance
- Today vs. normal: 17°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: 57323
16-Day Forecast — Carthage
- Sat87°63°9%
- Sun89°66°4%
- Mon93°67°27%
- Tue98°68°32%
- Wed83°68°65%
- Thu81°61°16%
- Fri79°61°20%
- Sat83°58°20%
- Sun88°61°12%
- Mon87°63°6%
- Tue93°64°10%
- Wed99°69°12%
- Thu92°73°11%
- Fri83°63°13%
- Sat80°58°11%
- Sun89°56°19%
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 — Carthage
SPC has placed Carthage in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
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 Carthage
- 57323