Westport, South Dakota Weather
Prairie lightning bugs rise. Day 77 of spring. Read this microseason across nine climate regions →
Westport weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Light Drizzle18%0.03″75°59°—
- FridayJun 5Overcast25%—79°61°+4°
- SaturdayJun 6Overcast——83°59°+4°
- SundayJun 7Thunderstorm20%—88°64°+5°
- MondayJun 8Light Showers41%—79°61°-9°
- TuesdayJun 9Overcast31%—88°62°+9°
- WednesdayJun 10Thunderstorm31%—97°75°+9°
AQI 25 (Good), driven by Ozone. AQI down 7 over the last 6 hours (steady decline since this morning).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 8 AM.
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:24 AM
- Moonset
- 2:17 PM
- In sign
- ♑︎ Capricorn
Prairie lightning bugs rise
Westport at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: May 20 (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 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 — Westport
SPC has placed Westport in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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.