Flint, Michigan Weather
Fireflies rise from the lawn. Day 77 of spring. Read this microseason across nine climate regions →
Flint weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——87°53°—
- FridayJun 5Light Rain82%0.13″86°64°-1°
- SaturdayJun 6Showers82%0.28″78°65°-8°
- SundayJun 7Overcast——76°56°-2°
- MondayJun 8Overcast——77°54°+1°
- TuesdayJun 9Overcast25%—83°57°+6°
- WednesdayJun 10Light Drizzle29%—82°65°-1°
PM2.5 at 6.9 µg/m³ (AQI 38) with a 0.99 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust. AQI down 9 over the last 6 hours (steady decline since this morning).
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 6.9 µg/m³ (AQI 38) with a 0.99 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.99
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:13 AM
- Moonset
- 1:25 PM
- In sign
- ♑︎ Capricorn
Fireflies rise from the lawn
Flint at a glance
- Today vs. normal: 19°F below the seasonal normal for this latitude
- Last frost: May 4 (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 — Flint
SPC has placed Flint 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.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
July brings Flint's warmest temperatures (~71°F mean) while January delivers the coldest (~23°F). Rainfall reaches its peak in May (3.7 inches) and drops to its lowest point in February (1.7 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 23° | 2.1″ | 6 |
| February | 25° | 1.7″ | 4 |
| March | 33° | 1.9″ | 5 |
| April | 46° | 3.4″ | 7 |
| May | 57° | 3.7″ | 7 |
| June | 67° | 3.1″ | 6 |
| July | 71° | 3.4″ | 6 |
| August | 69° | 3.3″ | 6 |
| September | 62° | 2.9″ | 6 |
| October | 50° | 3.0″ | 7 |
| November | 39° | 2.4″ | 6 |
| December | 29° | 2.1″ | 6 |
Regional context
Located within a warm-summer humid continental climate region, Flint shares similar temperature ranges, seasonal patterns, and growing conditions with nearby cities in this climate zone.
Similar climates: Detroit, MI, Grand Rapids, MI, Lansing, MI, Ann Arbor, MI, Kalamazoo, MI.
Naturalist notes
Red-winged blackbirds return to Flint's wetlands in late March, their distinctive calls marking the shift toward spring.
Sugar maples begin leafing out in early May when soil temperatures warm sufficiently after the final winter freeze.
Frequently asked
- When does it freeze in Flint?
- Spring's last frost in Flint typically occurs around mid-May, while the first fall frost arrives around mid-October.
- What is the rainy season in Flint?
- May brings the most rainfall with about 3.7 inches on average; Flint receives roughly 33 inches annually.
- What is the warmest month in Flint?
- July typically brings the warmest weather, averaging about 71°F.
- What is the coldest month in Flint?
- January typically brings the coldest temperatures, averaging about 23°F.
- When can I start a vegetable garden in Flint?
- Cool-season crops (peas, lettuce) can be planted around the last spring frost (mid-May); warm-season crops (tomatoes, peppers) should wait until 1–2 weeks after.
- How many rainy days does Flint get?
- Flint experiences about 71 rainy days per year on average.
- What hardiness zone is Flint?
- Check the USDA's online lookup with the city ZIP for Flint's current hardiness zone designation, which is based on the lowest average winter temperature.
Climate
Flint, Michigan experiences a warm-summer humid continental climate zone. January temperatures hover near 23°F while July averages 71°F — a 48°F seasonal swing.
Throughout the year, Flint receives about 33 inches of precipitation spread over roughly 71 rainy days.
Geography shapes the local weather patterns through latitude (43.0°N), proximity to large water bodies, and elevation. These factors determine what grows here, when frost strikes, and the daily weather patterns.