Spencer, South Dakota Weather
Toward the solstice glow. Day 86 of spring. Read this microseason across nine climate regions →
Spencer weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 13Foggy——70°56°—
- SundayJun 14Overcast——71°50°+1°
- MondayJun 15Overcast——77°51°+6°
- TuesdayJun 16Light Drizzle—0.01″80°53°+3°
- WednesdayJun 17Light Showers28%0.18″66°52°-14°
- ThursdayJun 18Overcast——72°50°+6°
- FridayJun 19Overcast22%—83°51°+11°
AQI 31 (Good), driven by PM2.5. AQI down 12 over the last 6 hours (gradual decline). PM2.5 at 8.0 µg/m³ (AQI 44) with a 0.86 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 8.0 µg/m³ (AQI 44) with a 0.86 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.86
- Wind
- light
- 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).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 3:58 AM
- Moonset
- 7:05 PM
- In sign
- ♉︎ Taurus
Toward the solstice glow
Spencer at a glance
- Today vs. normal: 13°F below the seasonal normal for this latitude
- Last frost: May 8 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Prune spring-blooming shrubs after flowers fade.
15-Day Forecast — Spencer
- Sat71°56°8%
- Sun71°50°1%
- Mon77°51°6%
- Tue80°53°8%
- Wed66°52°28%
- Thu72°50°8%
- Fri83°51°22%
- Sat81°63°30%
- Sun67°57°30%
- Mon76°59°17%
- Tue72°63°22%
- Wed85°64°42%
- Thu82°63°29%
- Fri78°54°27%
- Sat79°57°27%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 13, 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 — Spencer
SPC has placed Spencer 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 Spencer
- 57374