Frontenac, Minnesota Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Frontenac weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast44%—85°67°—
- MondayJul 6Overcast——86°69°+1°
- TuesdayJul 7Thunderstorm32%0.06″85°69°-1°
- WednesdayJul 8T-storm w/ Hail65%0.06″84°69°-1°
- ThursdayJul 9Overcast54%—79°62°-5°
- FridayJul 10Overcast——79°63°0°
- SaturdayJul 11Overcast10%—82°59°+3°
AQI 42 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 10.7 µg/m³ (AQI 54) with a 0.87 fine-to-coarse ratio and 4 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 44 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 44
- UV peak
- 4.6 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 44
PM × Wind × Precip
PM2.5 at 10.7 µg/m³ (AQI 54) with a 0.87 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- 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
- 11:31 PM
- Moonset
- 11:20 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Frontenac at a glance
- Today vs. normal: 18°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
- Sun85°67°44%
- Mon86°69°4%
- Tue85°69°32%
- Wed84°69°65%
- Thu79°62°54%
- Fri79°63°4%
- Sat82°59°10%
- Sun90°66°8%
- Mon77°60°11%
- Tue78°58°7%
- Wed81°60°13%
- Thu84°63°13%
- Fri88°66°23%
- Sat91°68°23%
- Sun91°71°20%
- Mon97°71°25%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 has placed Frontenac in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal Risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
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