Corona, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Corona weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Partly Cloudy31%—89°62°—
- SundayJul 5Overcast——88°63°-1°
- MondayJul 6Overcast41%—93°66°+5°
- TuesdayJul 7Light Showers48%—96°67°+3°
- WednesdayJul 8Heavy Drizzle75%0.01″80°63°-16°
- ThursdayJul 9Overcast19%—83°59°+3°
- FridayJul 10Light Drizzle14%—93°65°+10°
AQI 55 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.4 µg/m³ (AQI 53) with a 0.82 fine-to-coarse ratio and 2 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
Ozone × UV × Sky
Ozone at AQI 42 now. With UV 5.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 31 around 1 PM.
- Present
- AQI 42
- UV peak
- 5.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 31
PM × Wind × Precip
PM2.5 at 10.4 µg/m³ (AQI 53) with a 0.82 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.82
- Wind
- calm
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:31 PM
- Moonset
- 10:27 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Corona at a glance
- Today vs. normal: 21°F above the seasonal normal for this latitude
- Last frost: May 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 57227
16-Day Forecast — Corona
- Sat89°62°31%
- Sun88°63°1%
- Mon93°66°41%
- Tue96°67°48%
- Wed80°63°75%
- Thu83°59°19%
- Fri93°65°14%
- Sat79°61°20%
- Sun84°55°14%
- Mon92°58°7%
- Tue100°68°10%
- Wed88°64°12%
- Thu96°60°10%
- Fri97°69°19%
- Sat97°68°29%
- Sun106°74°20%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Corona
SPC has placed Corona in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal Risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 Corona
- 57227