Marble Rock, Iowa Weather
Prairie lightning bugs rise. Day 78 of spring. Read this microseason across nine climate regions →
Marble Rock weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Heavy Rain86%0.37″84°62°—
- FridayJun 5Thunderstorm30%—81°63°-3°
- SaturdayJun 6Overcast21%—86°63°+5°
- SundayJun 7Drizzle52%0.02″84°68°-2°
- MondayJun 8Light Showers65%0.02″80°67°-4°
- TuesdayJun 9Showers43%0.13″79°67°-1°
- WednesdayJun 10Thunderstorm14%—92°73°+13°
Ozone at AQI 39. AQI up 13 over the last 6 hours (gradual rise). Overcast through the UV peak window (cloud cover ~77%) — afternoon ozone should stay flat.
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 39. Overcast through the UV peak window (cloud cover ~77%) — afternoon ozone should stay flat.
- Present
- AQI 39
- UV peak
- 0.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 6.7 µg/m³, PM10 to 7.0 µg/m³.
- PM2.5/PM10
- 0.96
- Wind
- light
- Recent rain
- 2h in last 6h
- Pattern
- washed out
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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:20 AM
- Moonset
- 3:11 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Marble Rock at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: May 4 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Marble Rock
SPC has placed Marble Rock in the Slight Risk category for severe thunderstorms tomorrow.
- TODAYMRGLMarginal Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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.