Armour, South Dakota Weather
Lesser ripening, greater heat. Day 89 of spring. Read this microseason across nine climate regions →
Armour weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 16Overcast——80°49°—
- WednesdayJun 17Light Drizzle22%0.02″74°59°-6°
- ThursdayJun 18Light Drizzle——73°53°-1°
- FridayJun 19Overcast13%—84°55°+11°
- SaturdayJun 20Light Showers63%0.02″78°56°-6°
- SundayJun 21Drizzle65%—66°59°-12°
- MondayJun 22Light Drizzle26%0.06″65°57°-1°
AQI 27 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.7 µg/m³, PM10 at 8.5 µg/m³ — typical background levels with no transport signature.
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 42. Overcast through the UV peak window (cloud cover ~91%) — afternoon ozone should stay flat.
- Present
- AQI 42
- UV peak
- 6.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 17
PM × Wind × Precip
PM2.5 at 7.7 µg/m³, PM10 at 8.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.91
- Wind
- light
- 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).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 7:04 AM
- Moonset
- 10:37 PM
- In sign
- ♋︎ Cancer
Lesser ripening, greater heat
Armour at a glance
- Today vs. normal: 71°F — typical for the season
- Last frost: May 6 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Armour
- Tue80°49°8%
- Wed74°59°22%
- Thu73°53°3%
- Fri84°55°13%
- Sat78°56°63%
- Sun66°59°65%
- Mon65°57°26%
- Tue81°58°22%
- Wed85°61°31%
- Thu95°65°31%
- Fri88°64°24%
- Sat99°68°27%
- Sun92°78°30%
- Mon96°72°29%
- Tue98°70°33%
- Wed99°70°29%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 16, 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 — Armour
SPC has placed Armour in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
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.
ZIP codes in Armour
- 57313