Caspian, Michigan Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Caspian weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast11%—79°63°—
- SundayJul 5Overcast——81°56°+2°
- MondayJul 6Overcast——88°55°+7°
- TuesdayJul 7Thunderstorm42%—79°64°-9°
- WednesdayJul 8Light Showers57%0.66″69°55°-10°
- ThursdayJul 9Overcast57%—79°52°+10°
- FridayJul 10Overcast13%—81°52°+2°
AQI 46 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.7 µg/m³ (AQI 37) with a 0.91 fine-to-coarse ratio and 2 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 6.7 µg/m³ (AQI 37) with a 0.91 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.91
- 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
- 10:58 PM
- Moonset
- 9:53 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Caspian at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: May 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 49915
15-Day Forecast — Caspian
- Sat78°62°11%
- Sun81°56°5%
- Mon88°55°2%
- Tue79°64°42%
- Wed69°55°57%
- Thu79°52°57%
- Fri81°52°13%
- Sat81°59°22%
- Sun74°58°13%
- Mon75°59°8%
- Tue68°55°14%
- Wed84°54°18%
- Thu78°61°29%
- Fri83°54°24%
- Sat82°49°24%
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 — Caspian
SPC includes Caspian in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- 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 Caspian
- 49915
- 49935