Alexandria, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Alexandria weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——86°66°—
- SundayJul 5Overcast——89°68°+3°
- MondayJul 6Overcast12%—93°67°+4°
- TuesdayJul 7Light Drizzle28%—97°71°+4°
- WednesdayJul 8Drizzle56%—80°69°-17°
- ThursdayJul 9Light Drizzle15%—81°62°+1°
- FridayJul 10Overcast12%—81°62°0°
AQI 50 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 12.3 µg/m³ (AQI 57) with a 0.73 fine-to-coarse ratio and 3 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 47 now. With UV 6.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 41 around 1 PM.
- Present
- AQI 47
- UV peak
- 6.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 41
PM × Wind × Precip
PM2.5 at 12.3 µg/m³ (AQI 57) with a 0.73 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.73
- 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
- 11:32 PM
- Moonset
- 10:34 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Alexandria at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: May 8 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 57311
16-Day Forecast — Alexandria
- Sat86°66°5%
- Sun89°68°6%
- Mon93°67°12%
- Tue97°71°28%
- Wed80°69°56%
- Thu81°62°15%
- Fri81°62°12%
- Sat82°58°12%
- Sun82°61°10%
- Mon88°63°5%
- Tue91°64°6%
- Wed97°70°9%
- Thu92°72°12%
- Fri85°63°16%
- Sat82°58°19%
- Sun87°57°25%
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 — Alexandria
SPC has placed Alexandria in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
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 Alexandria
- 57311