Humboldt, Iowa Weather
Toward the solstice glow. Day 88 of spring. Read this microseason across nine climate regions →
Humboldt weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——76°47°—
- TuesdayJun 16Drizzle—0.03″74°54°-2°
- WednesdayJun 17Thunderstorm64%0.03″83°57°+9°
- ThursdayJun 18Drizzle——70°53°-13°
- FridayJun 19Overcast——77°51°+7°
- SaturdayJun 20Drizzle36%0.14″71°58°-6°
- SundayJun 21Overcast47%—77°60°+6°
AQI 19 (Good), driven by Ozone. AQI down 10 over the last 6 hours (gradual decline). Ozone at AQI 38. Overcast through the UV peak window (cloud cover ~74%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 38. Overcast through the UV peak window (cloud cover ~74%) — afternoon ozone should stay flat.
- Present
- AQI 38
- UV peak
- 6.4 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 16
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:39 AM
- Moonset
- 9:16 PM
- In sign
- ♋︎ Cancer
Toward the solstice glow
Humboldt at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: May 2 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Humboldt
- Mon76°47°3%
- Tue74°54°9%
- Wed83°57°64%
- Thu70°53°3%
- Fri77°51°7%
- Sat71°58°36%
- Sun77°60°47%
- Mon73°54°29%
- Tue75°54°11%
- Wed76°57°19%
- Thu77°67°15%
- Fri89°66°32%
- Sat84°71°23%
- Sun78°61°40%
- Mon83°58°52%
- Tue84°66°32%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 — Humboldt
SPC has placed Humboldt in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- 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 Humboldt
- 50548