McLaughlin, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
McLaughlin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——87°61°—
- SundayJul 5Clear——95°62°+8°
- MondayJul 6Overcast23%—93°70°-2°
- TuesdayJul 7Thunderstorm75%—80°64°-13°
- WednesdayJul 8Overcast75%—82°60°+2°
- ThursdayJul 9Drizzle18%0.02″77°62°-5°
- FridayJul 10Mostly Clear18%—74°59°-3°
AQI 32 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.3 µg/m³ (AQI 53) with a 0.81 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
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 46 now. With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 48 around 1 PM.
- Present
- AQI 46
- UV peak
- 7.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 48
PM × Wind × Precip
PM2.5 at 10.3 µg/m³ (AQI 53) with a 0.81 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.81
- Wind
- calm
- 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
- 10:48 PM
- Moonset
- 9:44 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
McLaughlin at a glance
- Today vs. normal: 18°F above the seasonal normal for this latitude
- Last frost: May 21 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 57642
16-Day Forecast — McLaughlin
- Sat87°61°3%
- Sun95°62°0%
- Mon93°70°23%
- Tue80°64°75%
- Wed82°60°75%
- Thu77°62°18%
- Fri74°59°18%
- Sat82°56°16%
- Sun89°60°6%
- Mon91°65°7%
- Tue99°68°13%
- Wed102°72°15%
- Thu91°68°16%
- Fri78°63°18%
- Sat84°58°19%
- Sun89°61°29%
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 — McLaughlin
SPC has placed McLaughlin in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYTSTMGeneral Thunderstorms
- 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 McLaughlin
- 57642