Stewartville, Minnesota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Stewartville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast15%—84°65°—
- SundayJul 5Overcast15%—81°65°-3°
- MondayJul 6Overcast——80°64°-1°
- TuesdayJul 7Overcast——82°64°+2°
- WednesdayJul 8Thunderstorm47%0.03″79°66°-3°
- ThursdayJul 9Foggy47%—77°57°-2°
- FridayJul 10Light Drizzle——76°61°-1°
AQI 43 (Good), driven by PM2.5. AQI up 11 over the last 6 hours (gradual rise). PM2.5 at 11.3 µg/m³, PM10 at 15.3 µg/m³ — typical background levels with no transport signature.
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 48 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 48
- UV peak
- 1.7 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 48
PM × Wind × Precip
PM2.5 at 11.3 µg/m³, PM10 at 15.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.74
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 10:11 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Stewartville at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: May 9 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 55976
16-Day Forecast — Stewartville
- Sat84°65°15%
- Sun81°65°15%
- Mon80°64°1%
- Tue82°64°8%
- Wed79°66°47%
- Thu77°57°47%
- Fri76°61°8%
- Sat75°55°8%
- Sun76°55°12%
- Mon78°57°8%
- Tue80°61°5%
- Wed79°63°16%
- Thu78°66°26%
- Fri78°62°32%
- Sat71°58°19%
- Sun77°58°16%
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 — Stewartville
SPC includes Stewartville 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 Stewartville
- 55976