St. Ansgar, Iowa Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
St. Ansgar weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain14%1.0″82°68°—
- SundayJul 5Heavy Drizzle27%0.04″81°66°-1°
- MondayJul 6Overcast——81°64°0°
- TuesdayJul 7Overcast——83°63°+2°
- WednesdayJul 8T-storm w/ Hail49%0.07″79°66°-4°
- ThursdayJul 9Overcast49%—78°59°-1°
- FridayJul 10Light Drizzle——77°62°-1°
AQI 41 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 47 — 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 47 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 47
- UV peak
- 4.1 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 47
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 7.3 µg/m³, PM10 to 9.2 µg/m³.
- PM2.5/PM10
- 0.79
- Wind
- calm
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:11 PM
- Moonset
- 10:14 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
St. Ansgar at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: May 6 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — St. Ansgar
- Sat82°68°14%
- Sun81°66°27%
- Mon81°64°1%
- Tue83°63°4%
- Wed79°66°49%
- Thu78°59°49%
- Fri77°62°8%
- Sat75°56°8%
- Sun76°56°13%
- Mon78°57°8%
- Tue80°60°4%
- Wed79°60°16%
- Thu82°64°29%
- Fri80°63°29%
- Sat69°58°21%
- Sun76°60°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 — St. Ansgar
SPC includes St. Ansgar 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 St. Ansgar
- 50472
- 50481