Brown City, Michigan Weather
Fireflies rise from the lawn. Day 78 of spring. Read this microseason across nine climate regions →
Brown City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Rain73%0.19″85°59°—
- SaturdayJun 6Light Drizzle55%0.02″82°64°-3°
- SundayJun 7Foggy——71°54°-11°
- MondayJun 8Overcast——77°55°+6°
- TuesdayJun 9Light Drizzle41%—73°62°-4°
- WednesdayJun 10Light Drizzle34%—84°67°+11°
- ThursdayJun 11Light Drizzle17%—90°68°+6°
AQI 46 (Good), driven by PM2.5. AQI down 48 over the last 6 hours — air quality is improving sharply. PM2.5 at 11.2 µg/m³ (AQI 55) with a 0.91 fine-to-coarse ratio and 5 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
PM × Wind × Precip
PM2.5 at 11.2 µg/m³ (AQI 55) with a 0.91 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.91
- Wind
- light
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 4:41 AM
- Moonset
- 2:29 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Brown City at a glance
- Today vs. normal: 10°F below the seasonal normal for this latitude
- Last frost: May 5 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Brown City
SPC has placed Brown City in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWMRGLMarginal 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.