Custer, Michigan Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Custer weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Foggy25%—81°67°—
- SundayJul 5Overcast18%—84°68°+3°
- MondayJul 6Overcast——80°56°-4°
- TuesdayJul 7Overcast——79°58°-1°
- WednesdayJul 8Light Showers16%—80°64°+1°
- ThursdayJul 9Overcast29%—78°60°-2°
- FridayJul 10Overcast26%—79°56°+1°
AQI 45 (Good), driven by Ozone. AQI down 6 over the last 6 hours (gradual decline). Ozone at AQI 45 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 14 around 1 PM.
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 45 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 14 around 1 PM.
- Present
- AQI 45
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 14
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
- 11:46 PM
- Moonset
- 10:45 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Custer at a glance
- Today vs. normal: 67°F — typical for the season
- Last frost: May 10 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 49405
15-Day Forecast — Custer
- Sat80°66°25%
- Sun84°68°18%
- Mon80°56°3%
- Tue79°58°1%
- Wed80°64°16%
- Thu78°60°29%
- Fri79°56°26%
- Sat77°59°15%
- Sun71°61°15%
- Mon79°61°15%
- Tue71°59°15%
- Wed77°58°16%
- Thu78°62°23%
- Fri76°65°26%
- Sat78°55°19%
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 — Custer
SPC includes Custer 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 Custer
- 49454
- 49405