California Junction, Iowa Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
California Junction weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle48%0.01″83°70°—
- SundayJul 5Partly Cloudy——91°68°+8°
- MondayJul 6Overcast——93°70°+2°
- TuesdayJul 7Overcast——89°68°-4°
- WednesdayJul 8Light Drizzle44%—92°69°+3°
- ThursdayJul 9Light Drizzle44%—83°65°-9°
- FridayJul 10Mostly Clear22%—89°65°+6°
AQI 47 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 43 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 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 43 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 43
- UV peak
- 0.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 5.7 µg/m³ (AQI 32) with a 0.80 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.80
- 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
- 11:44 PM
- Moonset
- 11:37 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
California Junction at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: April 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — California Junction
- Sat83°70°48%
- Sun91°68°3%
- Mon93°70°1%
- Tue89°68°2%
- Wed92°69°44%
- Thu83°65°44%
- Fri89°65°22%
- Sat82°67°8%
- Sun82°62°5%
- Mon90°64°5%
- Tue96°69°4%
- Wed95°70°6%
- Thu98°75°11%
- Fri100°75°11%
- Sat98°75°23%
- Sun92°71°11%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — California Junction
SPC includes California Junction in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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 California Junction
- 51555