Tustin, Michigan Weather
Fireflies rise from the lawn. Day 78 of spring. Read this microseason across nine climate regions →
Tustin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Mostly Clear——83°50°—
- FridayJun 5Drizzle54%0.05″76°62°-7°
- SaturdayJun 6Foggy22%—79°59°+3°
- SundayJun 7Overcast——76°53°-3°
- MondayJun 8Overcast11%—77°51°+1°
- TuesdayJun 9Drizzle53%—76°62°-1°
- WednesdayJun 10Drizzle27%—79°65°+3°
AQI 116 (Unhealthy for Sensitive Groups), driven by Ozone. AQI up 29 in the last 6 hours — air quality is degrading. Ozone at AQI 93. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 93. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 93
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 11
PM × Wind × Precip
PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.92 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.92
- 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
- 4:53 AM
- Moonset
- 2:37 PM
- In sign
- ♒︎ Aquarius
Fireflies rise from the lawn
Tustin at a glance
- Today vs. normal: 69°F — typical for the season
- Last frost: May 11 (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 — Tustin
SPC has placed Tustin in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
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.