Frederick, South Dakota Weather
Prairie lightning bugs rise. Day 76 of spring. Read this microseason across nine climate regions →
Frederick weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Drizzle74%0.06″78°63°—
- ThursdayJun 4Showers24%0.13″81°64°+3°
- FridayJun 5Light Showers43%0.23″76°60°-5°
- SaturdayJun 6Overcast——83°59°+7°
- SundayJun 7Overcast29%—85°64°+2°
- MondayJun 8Light Drizzle51%—81°60°-4°
- TuesdayJun 9Light Drizzle28%—85°60°+4°
Ozone at AQI 40 — peak already passed at 1 PM under partly cloudy skies. AQI flat over the last 6 hours (within ±3 points). Levels should ease through evening.
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 40 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 40
- UV peak
- 2.4 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 40
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
- 4:51 AM
- Moonset
- 1:10 PM
- In sign
- ♑︎ Capricorn
Prairie lightning bugs rise
Frederick at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: May 21 (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 3, 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 — Frederick
SPC has placed Frederick in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal Risk
- DAY 3MRGLMarginal 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.