Stewartville, Minnesota Weather
Lesser ripening, greater heat. Day 90 of spring. Read this microseason across nine climate regions →
Stewartville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 17Rain78%0.31″69°55°—
- ThursdayJun 18Light Drizzle15%0.01″68°55°-1°
- FridayJun 19Drizzle42%0.02″68°48°0°
- SaturdayJun 20Overcast11%—69°50°+1°
- SundayJun 21Overcast48%—68°48°-1°
- MondayJun 22Overcast16%—72°47°+4°
- TuesdayJun 23Light Drizzle13%0.05″60°56°-12°
AQI 30 (Good), driven by Ozone. AQI up 6 over the last 6 hours (gradual rise). Ozone at AQI 38. Overcast through the UV peak window (cloud cover ~85%) — 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 ~85%) — afternoon ozone should stay flat.
- Present
- AQI 38
- UV peak
- 5.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 14
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
- 7:56 AM
- Moonset
- 11:03 PM
- In sign
- ♌︎ Leo
Lesser ripening, greater heat
Stewartville at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: May 9 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Stewartville
- Wed69°55°78%
- Thu68°55°15%
- Fri68°48°42%
- Sat69°50°11%
- Sun68°48°48%
- Mon72°47°16%
- Tue60°56°13%
- Wed78°52°13%
- Thu77°58°26%
- Fri81°59°21%
- Sat84°65°20%
- Sun73°60°36%
- Mon68°54°39%
- Tue70°50°34%
- Wed64°54°39%
- Thu72°51°29%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 17, 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 has placed Stewartville in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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