Frontenac, Minnesota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Frontenac weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast22%—86°68°—
- SundayJul 5Heavy Rain25%2.0″81°68°-5°
- MondayJul 6Partly Cloudy——82°66°+1°
- TuesdayJul 7T-storm w/ Hail11%—85°65°+3°
- WednesdayJul 8T-storm w/ Hail53%0.24″77°64°-8°
- ThursdayJul 9Overcast53%—79°57°+2°
- FridayJul 10Light Drizzle——76°62°-3°
AQI 35 (Good), driven by PM2.5. AQI up 6 over the last 6 hours (gradual rise). PM2.5 at 13.1 µg/m³ (AQI 58) with a 0.72 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
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 46 now. With UV 6.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 39 around 1 PM.
- Present
- AQI 46
- UV peak
- 6.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 39
PM × Wind × Precip
PM2.5 at 13.1 µg/m³ (AQI 58) with a 0.72 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.72
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 10:10 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Frontenac at a glance
- Today vs. normal: 17°F above the seasonal normal for this latitude
- Last frost: May 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 55026
16-Day Forecast — Frontenac
- Sat86°68°22%
- Sun81°67°25%
- Mon82°66°4%
- Tue85°65°11%
- Wed77°64°53%
- Thu79°57°53%
- Fri76°62°7%
- Sat77°55°10%
- Sun78°56°14%
- Mon79°58°7%
- Tue82°62°8%
- Wed82°66°17%
- Thu80°67°13%
- Fri78°63°35%
- Sat70°59°23%
- Sun79°57°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 — Frontenac
SPC includes Frontenac 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 Frontenac
- 55026
- 55066
- 55041