Ferney, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Ferney weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Partly Cloudy——86°61°—
- SundayJul 5Clear——89°65°+3°
- MondayJul 6Thunderstorm46%1.2″97°66°+8°
- TuesdayJul 7Thunderstorm63%2.0″90°65°-7°
- WednesdayJul 8Showers73%—79°63°-11°
- ThursdayJul 9Light Drizzle13%0.05″73°61°-6°
- FridayJul 10Overcast19%—71°59°-2°
AQI 53 (Moderate), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 48 now. With UV 6.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 38 around 1 PM.
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 48 now. With UV 6.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 38 around 1 PM.
- Present
- AQI 48
- UV peak
- 6.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 38
PM × Wind × Precip
PM2.5 at 7.8 µg/m³ (AQI 43) with a 0.80 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.80
- 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
- 11:36 PM
- Moonset
- 10:33 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Ferney at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: May 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 57439
16-Day Forecast — Ferney
- Sat86°61°6%
- Sun89°65°2%
- Mon97°66°46%
- Tue90°65°63%
- Wed79°63°73%
- Thu73°61°13%
- Fri71°59°19%
- Sat80°56°19%
- Sun84°60°11%
- Mon87°64°7%
- Tue91°64°10%
- Wed95°69°10%
- Thu89°71°17%
- Fri84°62°23%
- Sat80°60°17%
- Sun87°57°17%
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 — Ferney
SPC has placed Ferney in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal 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 Ferney
- 57434
- 57439