Wallace, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Wallace weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Partly Cloudy——85°60°—
- SundayJul 5Clear——88°64°+3°
- MondayJul 6Showers39%0.73″92°65°+4°
- TuesdayJul 7Thunderstorm55%0.85″90°64°-2°
- WednesdayJul 8Light Showers74%0.01″79°63°-11°
- ThursdayJul 9Drizzle18%0.13″74°59°-5°
- FridayJul 10Light Drizzle18%—71°60°-3°
AQI 55 (Moderate), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 46 now. With UV 6.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 37 around 1 PM.
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 6.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 37 around 1 PM.
- Present
- AQI 46
- UV peak
- 6.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 37
PM × Wind × Precip
PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.81 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.81
- Wind
- light
- 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
- 11:33 PM
- Moonset
- 10:31 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Wallace at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: May 17 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 57272
16-Day Forecast — Wallace
- Sat85°60°8%
- Sun88°64°2%
- Mon92°65°39%
- Tue90°64°55%
- Wed79°63°74%
- Thu74°59°18%
- Fri71°60°18%
- Sat78°58°18%
- Sun81°58°11%
- Mon84°60°8%
- Tue89°63°9%
- Wed94°64°11%
- Thu85°70°10%
- Fri81°62°19%
- Sat77°57°20%
- Sun86°56°19%
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 — Wallace
SPC has placed Wallace in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- 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 Wallace
- 57272