Fort Pierre, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Fort Pierre weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast24%—92°63°—
- SundayJul 5Clear——95°67°+3°
- MondayJul 6Showers49%0.22″106°69°+11°
- TuesdayJul 7Light Showers72%0.13″103°70°-3°
- WednesdayJul 8Light Drizzle72%—84°68°-19°
- ThursdayJul 9Light Drizzle17%—87°67°+3°
- FridayJul 10Clear17%—85°65°-2°
AQI 58 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 17.3 µg/m³, PM10 at 23.3 µg/m³ — typical background levels with no transport signature.
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 42 now. With UV 7.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 39 around 1 PM.
- Present
- AQI 42
- UV peak
- 7.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 39
PM × Wind × Precip
PM2.5 at 17.3 µg/m³, PM10 at 23.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.74
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:44 PM
- Moonset
- 10:44 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Fort Pierre at a glance
- Today vs. normal: 18°F above the seasonal normal for this latitude
- Last frost: May 12 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 57532
16-Day Forecast — Fort Pierre
- Sat92°63°24%
- Sun95°67°1%
- Mon106°69°49%
- Tue103°70°72%
- Wed84°68°72%
- Thu87°67°17%
- Fri85°65°17%
- Sat86°61°14%
- Sun94°66°6%
- Mon94°71°8%
- Tue103°71°14%
- Wed111°76°14%
- Thu95°77°23%
- Fri89°71°16%
- Sat88°64°24%
- Sun91°65°32%
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 — Fort Pierre
SPC includes Fort Pierre in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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 Fort Pierre
- 57532