Brandon, Iowa Weather
Prairie lightning bugs rise. Day 78 of spring. Read this microseason across nine climate regions →
Brandon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Rain87%0.21″84°57°—
- FridayJun 5Thunderstorm78%0.23″80°66°-4°
- SaturdayJun 6Light Drizzle52%—82°67°+2°
- SundayJun 7Showers57%—81°67°-1°
- MondayJun 8Light Showers69%0.01″79°68°-2°
- TuesdayJun 9Thunderstorm44%0.07″83°68°+4°
- WednesdayJun 10Thunderstorm16%—90°75°+7°
Ozone at AQI 42. AQI up 8 over the last 6 hours (gradual rise). Overcast through the UV peak window (cloud cover ~83%) — 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 42. Overcast through the UV peak window (cloud cover ~83%) — afternoon ozone should stay flat.
- Present
- AQI 42
- UV peak
- 0.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM scrubbed by 4 hours of recent rain — PM2.5 down to 6.9 µg/m³, PM10 to 7.7 µg/m³.
- PM2.5/PM10
- 0.90
- Wind
- light
- Recent rain
- 4h 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
- 5:15 AM
- Moonset
- 3:10 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Brandon at a glance
- Today vs. normal: 75°F — typical for the season
- Last frost: April 30 (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 — Brandon
SPC has placed Brandon 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.