Clear Lake, South Dakota Weather
Prairie lightning bugs rise. Day 78 of spring. Read this microseason across nine climate regions →
Clear Lake weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Heavy Rain82%1.5″79°61°—
- FridayJun 5Heavy Drizzle50%0.11″79°62°0°
- SaturdayJun 6Clear——84°59°+5°
- SundayJun 7Thunderstorm23%—88°63°+4°
- MondayJun 8Overcast37%—86°65°-2°
- TuesdayJun 9Thunderstorm28%—87°68°+1°
- WednesdayJun 10Thunderstorm20%—96°73°+9°
AQI 44 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM scrubbed by 4 hours of recent rain — PM2.5 down to 6.4 µg/m³, PM10 to 7.5 µg/m³.
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 30 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 5 by mid-afternoon.
- Present
- AQI 30
- UV peak
- 0.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 5
PM × Wind × Precip
PM scrubbed by 4 hours of recent rain — PM2.5 down to 6.4 µg/m³, PM10 to 7.5 µg/m³.
- PM2.5/PM10
- 0.85
- Wind
- calm
- Recent rain
- 4h in last 6h
- Pattern
- washed out
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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:42 AM
- Moonset
- 3:22 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Clear Lake at a glance
- Today vs. normal: 5°F below the seasonal normal for this latitude
- Last frost: May 15 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 5, 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 Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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.