Clear Lake, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Clear Lake weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Mostly Clear11%—86°59°—
- SundayJul 5Clear——86°63°0°
- MondayJul 6Showers50%0.12″95°65°+9°
- TuesdayJul 7T-storm w/ Hail64%0.16″81°63°-14°
- WednesdayJul 8Heavy Drizzle74%0.01″77°61°-4°
- ThursdayJul 9Heavy Drizzle20%0.17″76°59°-1°
- FridayJul 10Light Drizzle17%—68°58°-8°
AQI 60 (Moderate), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 48 now. With UV 5.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 36 around 1 PM.
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 48 now. With UV 5.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 36 around 1 PM.
- Present
- AQI 48
- UV peak
- 5.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 36
PM × Wind × Precip
PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.81 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.81
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:34 PM
- Moonset
- 10:29 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Clear Lake at a glance
- Today vs. normal: 17°F above the seasonal normal for this latitude
- Last frost: May 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 57226
16-Day Forecast — Clear Lake
- Sat86°59°11%
- Sun86°63°1%
- Mon95°65°50%
- Tue81°63°64%
- Wed77°61°74%
- Thu76°59°20%
- Fri68°58°17%
- Sat77°54°19%
- Sun81°58°14%
- Mon87°61°7%
- Tue91°65°10%
- Wed96°68°11%
- Thu87°70°13%
- Fri77°61°20%
- Sat76°59°20%
- Sun86°57°18%
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 — Clear Lake
SPC has placed Clear Lake 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 Clear Lake
- 57247