Tyndall, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Tyndall weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Foggy——86°69°—
- SundayJul 5Clear——88°67°+2°
- MondayJul 6Overcast——96°69°+8°
- TuesdayJul 7Overcast25%—99°70°+3°
- WednesdayJul 8Light Showers52%—87°70°-12°
- ThursdayJul 9Showers27%0.31″91°64°+4°
- FridayJul 10Overcast20%—83°63°-8°
AQI 57 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 18.2 µg/m³ (AQI 68) with a 0.69 fine-to-coarse ratio and 4 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 49 now. With UV 7.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 48 around 1 PM.
- Present
- AQI 49
- UV peak
- 7.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 48
PM × Wind × Precip
PM2.5 at 18.2 µg/m³ (AQI 68) with a 0.69 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.69
- 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
- 11:31 PM
- Moonset
- 10:35 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Tyndall at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: May 4 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 57066
16-Day Forecast — Tyndall
- Sat86°69°9%
- Sun88°67°3%
- Mon96°69°7%
- Tue99°70°25%
- Wed87°70°52%
- Thu91°64°27%
- Fri83°63°20%
- Sat85°59°13%
- Sun85°63°9%
- Mon89°63°5%
- Tue93°68°6%
- Wed98°71°6%
- Thu93°73°10%
- Fri91°65°23%
- Sat84°61°21%
- Sun89°58°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 — Tyndall
SPC has placed Tyndall 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 Tyndall
- 57066