Big Stone City, South Dakota Weather
Prairie lightning bugs rise. Day 77 of spring. Read this microseason across nine climate regions →
Big Stone City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Light Drizzle72%0.02″85°66°—
- ThursdayJun 4Heavy Rain55%1.8″80°63°-5°
- FridayJun 5Overcast29%—79°62°-1°
- SaturdayJun 6Overcast——84°61°+5°
- SundayJun 7Overcast16%—90°64°+6°
- MondayJun 8Drizzle49%0.02″83°68°-7°
- TuesdayJun 9Mostly Clear19%—92°65°+9°
Ozone at AQI 48. AQI up 18 in the last 6 hours — air quality is degrading. Overcast through the UV peak window (cloud cover ~61%) — afternoon ozone should stay flat.
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. Overcast through the UV peak window (cloud cover ~61%) — afternoon ozone should stay flat.
- Present
- AQI 48
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 5.6 µg/m³, PM10 to 6.4 µg/m³.
- PM2.5/PM10
- 0.87
- Wind
- breezy
- Recent rain
- 3h in last 6h
- Pattern
- washed out
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:14 AM
- Moonset
- 2:10 PM
- In sign
- ♑︎ Capricorn
Prairie lightning bugs rise
Big Stone City at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: May 18 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Big Stone City
SPC has placed Big Stone City in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight Risk
- DAY 3MRGLMarginal Risk
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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.