Colfax, Iowa Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Colfax weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain75%0.98″84°68°—
- SundayJul 5Overcast18%—83°68°-1°
- MondayJul 6Light Drizzle10%—81°67°-2°
- TuesdayJul 7Light Drizzle——83°64°+2°
- WednesdayJul 8T-storm w/ Hail30%—87°66°+4°
- ThursdayJul 9Light Drizzle47%—81°68°-6°
- FridayJul 10Light Drizzle21%—81°67°0°
AQI 32 (Good), driven by Ozone. AQI up 5 over the last 6 hours (gradual rise). Ozone at AQI 43 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
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 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 43
- UV peak
- 3.4 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 43
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
- 11:10 PM
- Moonset
- 10:17 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Colfax at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 50054
16-Day Forecast — Colfax
- Sat84°68°75%
- Sun83°68°18%
- Mon81°67°10%
- Tue83°64°2%
- Wed87°66°30%
- Thu81°68°47%
- Fri81°67°21%
- Sat76°59°8%
- Sun78°59°8%
- Mon79°58°9%
- Tue80°61°9%
- Wed80°57°26%
- Thu84°65°20%
- Fri86°67°20%
- Sat77°62°20%
- Sun73°61°26%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Colfax
SPC includes Colfax 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 Colfax
- 50054