Henry, South Dakota Weather
Prairie lightning bugs rise. Day 78 of spring. Read this microseason across nine climate regions →
Henry weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Rain58%0.20″81°61°—
- SaturdayJun 6Clear——89°59°+8°
- SundayJun 7Thunderstorm15%—86°64°-3°
- MondayJun 8Drizzle29%—77°63°-9°
- TuesdayJun 9Thunderstorm25%—92°66°+15°
- WednesdayJun 10Thunderstorm23%—90°71°-2°
- ThursdayJun 11Light Drizzle20%0.04″69°56°-21°
AQI 33 (Good), driven by PM2.5. AQI down 11 over the last 6 hours (steady decline since this morning). PM scrubbed by 4 hours of recent rain — PM2.5 down to 5.4 µg/m³, PM10 to 6.3 µg/m³.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM scrubbed by 4 hours of recent rain — PM2.5 down to 5.4 µg/m³, PM10 to 6.3 µg/m³.
- PM2.5/PM10
- 0.86
- Wind
- breezy
- Recent rain
- 4h 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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:45 AM
- Moonset
- 3:25 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Henry at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: May 15 (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 5, 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 — Henry
SPC has placed Henry in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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.