Java, South Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Java weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 3Overcast30%—82°65°—
- SaturdayJul 4Overcast20%—87°65°+5°
- SundayJul 5Clear——91°65°+4°
- MondayJul 6Drizzle24%—100°68°+9°
- TuesdayJul 7Heavy Drizzle52%—80°63°-20°
- WednesdayJul 8Light Drizzle52%—75°60°-5°
- ThursdayJul 9Overcast23%—84°59°+9°
AQI 46 (Good), driven by PM2.5. AQI down 7 over the last 6 hours (gradual decline). PM2.5 at 14.9 µg/m³, PM10 at 17.9 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 45 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 45
- UV peak
- 0.7 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 45
PM × Wind × Precip
PM2.5 at 14.9 µg/m³, PM10 at 17.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.83
- Wind
- breezy
- 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
- 11:23 PM
- Moonset
- 9:30 AM
- In sign
- ♒︎ Aquarius
Cicadas claim the afternoon
Java at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: May 19 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 57452
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 — Java
SPC has placed Java in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe 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 Java
- 57452