Rapid Valley, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Rapid Valley weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——88°61°—
- SundayJul 5Clear——97°63°+9°
- MondayJul 6Overcast23%—97°70°0°
- TuesdayJul 7Light Showers68%0.02″95°66°-2°
- WednesdayJul 8Showers68%0.18″83°64°-12°
- ThursdayJul 9Overcast36%—89°65°+6°
- FridayJul 10Clear19%—85°62°-4°
AQI 71 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 19.1 µg/m³ (AQI 70) with a 0.77 fine-to-coarse ratio and 4 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 56 now. With UV 7.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 56 around 1 PM.
- Present
- AQI 56
- UV peak
- 7.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 56
PM × Wind × Precip
PM2.5 at 19.1 µg/m³ (AQI 70) with a 0.77 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.77
- 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
- 10:54 PM
- Moonset
- 9:56 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Rapid Valley at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: May 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Rapid Valley
- Sat88°61°4%
- Sun97°63°1%
- Mon97°70°23%
- Tue95°66°68%
- Wed83°64°68%
- Thu89°65°36%
- Fri85°62°19%
- Sat89°58°8%
- Sun97°66°3%
- Mon100°71°9%
- Tue106°73°17%
- Wed108°78°22%
- Thu92°71°28%
- Fri89°68°29%
- Sat86°59°27%
- Sun92°63°26%
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 — Rapid Valley
SPC has placed Rapid Valley in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
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 Rapid Valley
- 57703