Sylvan Lake, Michigan Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Sylvan Lake weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——86°54°—
- FridayJun 5Heavy Drizzle52%0.06″84°61°-2°
- SaturdayJun 6Light Rain88%0.19″77°66°-7°
- SundayJun 7Overcast——79°61°+2°
- MondayJun 8Overcast——77°59°-2°
- TuesdayJun 9Overcast25%—86°62°+9°
- WednesdayJun 10Overcast25%—85°68°-1°
Ozone at AQI 108 now. AQI flat over the last 6 hours (within ±3 points). With UV 8.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 82 by mid-afternoon.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 108 now. With UV 8.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 82 by mid-afternoon.
- Present
- AQI 108
- UV peak
- 8.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 82
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
- 4:10 AM
- Moonset
- 1:25 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Sylvan Lake at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: May 2 (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 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 — Sylvan Lake
SPC has placed Sylvan Lake in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- 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.