Martin, South Dakota Weather
Prairie lightning bugs rise. Day 76 of spring. Read this microseason across nine climate regions →
Martin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Heavy Rain58%0.52″78°57°—
- ThursdayJun 4Overcast11%—88°59°+10°
- FridayJun 5Overcast26%—81°60°-7°
- SaturdayJun 6Clear——93°63°+12°
- SundayJun 7Partly Cloudy35%—92°68°-1°
- MondayJun 8Overcast35%—78°64°-14°
- TuesdayJun 9Overcast22%—97°63°+19°
Ozone at AQI 42 — 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 42 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 42
- UV peak
- 2.3 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 42
PM × Wind × Precip
PM2.5/PM10 ratio 0.64 with 9 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.64
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
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
- 4:52 AM
- Moonset
- 1:35 PM
- In sign
- ♑︎ Capricorn
Prairie lightning bugs rise
Martin at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: May 5 (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 — Martin
SPC has placed Martin in the Slight Risk category for severe thunderstorms tomorrow.
- TODAYMRGLMarginal Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
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.