Sparta, Michigan Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Sparta weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle37%0.01″84°68°—
- SundayJul 5Overcast16%—84°69°0°
- MondayJul 6Overcast——80°58°-4°
- TuesdayJul 7Overcast——83°58°+3°
- WednesdayJul 8Light Drizzle15%—80°62°-3°
- ThursdayJul 9Overcast24%—80°64°0°
- FridayJul 10Overcast24%—83°59°+3°
AQI 38 (Good), driven by PM2.5. AQI down 35 over the last 6 hours — air quality is improving sharply. PM2.5 at 7.6 µg/m³ (AQI 42) with a 0.95 fine-to-coarse ratio and 3 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
Ozone × UV × Sky
Ozone at AQI 37 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 12 around 1 PM.
- Present
- AQI 37
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 12
PM × Wind × Precip
PM2.5 at 7.6 µg/m³ (AQI 42) with a 0.95 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.95
- 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
- 11:42 PM
- Moonset
- 10:44 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Sparta at a glance
- Today vs. normal: 68°F — typical for the season
- Last frost: May 5 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 49345
15-Day Forecast — Sparta
- Sat84°69°37%
- Sun84°69°16%
- Mon80°58°5%
- Tue83°58°2%
- Wed80°62°15%
- Thu80°64°24%
- Fri83°59°24%
- Sat79°62°14%
- Sun75°60°11%
- Mon86°60°13%
- Tue70°60°14%
- Wed82°56°16%
- Thu81°60°29%
- Fri80°67°39%
- Sat81°57°14%
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 — Sparta
SPC includes Sparta in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- 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 Sparta
- 49345