Summit, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Summit weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Partly Cloudy15%—86°60°—
- SundayJul 5Partly Cloudy——85°64°-1°
- MondayJul 6Drizzle43%0.04″90°65°+5°
- TuesdayJul 7T-storm w/ Hail52%0.71″87°62°-3°
- WednesdayJul 8Showers75%0.10″76°61°-11°
- ThursdayJul 9Light Drizzle19%—75°58°-1°
- FridayJul 10Light Drizzle16%—70°59°-5°
AQI 56 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.8 µg/m³, PM10 at 10.7 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 45 now. With UV 5.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 35 around 1 PM.
- Present
- AQI 45
- UV peak
- 5.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 35
PM × Wind × Precip
PM2.5 at 8.8 µg/m³, PM10 at 10.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.82
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:32 PM
- Moonset
- 10:28 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Summit at a glance
- Today vs. normal: 18°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: 57266
16-Day Forecast — Summit
- Sat86°60°15%
- Sun85°64°1%
- Mon90°65°43%
- Tue87°62°52%
- Wed76°61°75%
- Thu75°58°19%
- Fri70°59°16%
- Sat76°55°18%
- Sun81°57°15%
- Mon84°60°7%
- Tue89°63°9%
- Wed93°65°13%
- Thu86°69°10%
- Fri79°61°19%
- Sat73°58°29%
- Sun84°55°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 — Summit
SPC has placed Summit 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 Summit
- 57266