Brandon, South Dakota Weather
Prairie lightning bugs rise. Day 76 of spring. Read this microseason across nine climate regions →
Brandon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast23%—83°58°—
- ThursdayJun 4Light Drizzle63%—78°65°-5°
- FridayJun 5Heavy Drizzle35%0.03″79°62°+1°
- SaturdayJun 6Clear10%—85°62°+6°
- SundayJun 7Drizzle32%—83°64°-2°
- MondayJun 8Drizzle36%0.02″83°68°0°
- TuesdayJun 9Overcast21%—87°68°+4°
Ozone at AQI 95 — peak already passed at 1 PM under overcast skies. AQI up 43 in the last 6 hours — air quality is degrading. Levels should ease through evening.
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 95 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 95
- UV peak
- 1.1 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 95
PM × Wind × Precip
PM2.5 at 6.6 µg/m³, PM10 at 7.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.86
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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).
The higher the clouds, the finer the weather.
- Moonrise
- 4:34 AM
- Moonset
- 1:12 PM
- In sign
- ♑︎ Capricorn
Prairie lightning bugs rise
Brandon at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: May 8 (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 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 — Brandon
SPC has placed Brandon 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.