Mountain Plains, South Dakota Weather
Toward the solstice glow. Day 86 of spring. Read this microseason across nine climate regions →
Mountain Plains weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 13Light Rain66%0.12″56°46°—
- SundayJun 14Overcast——66°46°+10°
- MondayJun 15Overcast——70°48°+4°
- TuesdayJun 16Light Drizzle—0.01″74°55°+4°
- WednesdayJun 17Light Drizzle26%0.01″69°47°-5°
- ThursdayJun 18Overcast——70°46°+1°
- FridayJun 19Overcast——85°53°+15°
AQI 34 (Good), driven by Ozone. AQI down 8 over the last 6 hours (gradual decline). Ozone at AQI 31. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
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 31. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 31
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
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).








































Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 3:22 AM
- Moonset
- 6:34 PM
- In sign
- ♉︎ Taurus
Toward the solstice glow
Mountain Plains at a glance
- Today vs. normal: 19°F below the seasonal normal for this latitude
- Last frost: May 13 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Prune spring-blooming shrubs after flowers fade.
15-Day Forecast — Mountain Plains
- Sat55°46°66%
- Sun66°46°1%
- Mon70°48°4%
- Tue74°55°7%
- Wed69°47°26%
- Thu70°46°9%
- Fri85°53°6%
- Sat82°58°44%
- Sun71°50°51%
- Mon66°49°48%
- Tue76°54°34%
- Wed80°56°30%
- Thu77°57°26%
- Fri83°55°26%
- Sat87°62°19%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 13, 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.
ZIP codes in Mountain Plains
- 57783