Hartford, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Hartford weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast11%—86°65°—
- SundayJul 5Partly Cloudy——88°66°+2°
- MondayJul 6Overcast——88°65°0°
- TuesdayJul 7Light Drizzle24%—90°67°+2°
- WednesdayJul 8Light Showers44%—84°69°-6°
- ThursdayJul 9Overcast23%—81°62°-3°
- FridayJul 10Drizzle11%0.01″87°65°+6°
AQI 44 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 11.3 µg/m³ (AQI 55) with a 0.77 fine-to-coarse ratio and 3 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 36 now. With UV 2.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 12 around 1 PM.
- Present
- AQI 36
- UV peak
- 2.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 12
PM × Wind × Precip
PM2.5 at 11.3 µg/m³ (AQI 55) with a 0.77 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.77
- 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
- 11:29 PM
- Moonset
- 10:30 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Hartford at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: May 8 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 57033
16-Day Forecast — Hartford
- Sat86°65°11%
- Sun88°66°7%
- Mon88°65°5%
- Tue90°67°24%
- Wed84°69°44%
- Thu81°62°23%
- Fri87°65°11%
- Sat83°59°11%
- Sun78°54°10%
- Mon87°56°6%
- Tue95°66°5%
- Wed83°63°9%
- Thu90°61°9%
- Fri94°67°16%
- Sat94°67°17%
- Sun99°71°25%
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 — Hartford
SPC has placed Hartford 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 Hartford
- 57033