Barnum, Iowa Weather
Warm wind sweeps the tallgrass. Day 16 of summer. Read this microseason across nine climate regions →
Barnum weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 6Foggy——87°64°—
- TuesdayJul 7Overcast——89°69°+2°
- WednesdayJul 8Drizzle53%—86°67°-3°
- ThursdayJul 9Thunderstorm57%0.01″78°69°-8°
- FridayJul 10Overcast25%—82°65°+4°
- SaturdayJul 11Overcast——86°67°+4°
- SundayJul 12Clear——91°72°+5°
AQI 29 (Good), driven by PM2.5. AQI down 19 over the last 6 hours — air quality is improving sharply. PM2.5 at 7.7 µg/m³ (AQI 43) with a 0.86 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in stagnant 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
PM × Wind × Precip
PM2.5 at 7.7 µg/m³ (AQI 43) with a 0.86 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.86
- 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).
When the stars begin to huddle, the earth will soon become a puddle.
- Moonrise
- 11:58 PM
- Moonset
- 12:39 PM
- In sign
- ♓︎ Pisces
Warm wind sweeps the tallgrass
Barnum at a glance
- Today vs. normal: 67°F — typical for the season
- Last frost: May 1 (climatological average for this latitude)
- Microseason: Jul 6–10
- Planting window: Sow fall broccoli and cabbage indoors for transplant in 4 weeks.
ZIP code: 50518
15-Day Forecast — Barnum
- Mon87°65°1%
- Tue89°69°4%
- Wed86°67°53%
- Thu78°69°57%
- Fri82°65°25%
- Sat86°67°3%
- Sun91°72°5%
- Mon95°75°3%
- Tue97°75°11%
- Wed80°65°11%
- Thu76°65°16%
- Fri76°62°26%
- Sat78°59°15%
- Sun78°62°20%
- Mon76°55°29%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 6, 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 — Barnum
SPC has placed Barnum in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal 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 Barnum
- 50518