Pontiac, MI Weather & Growing Conditions
This Afternoon
65°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. High near 65, with temperatures falling to around 63 in the afternoon. East wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Chance Showers And Thunderstorms | 8 mph E | 32% |
| Tonight | 58°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 3 to 8 mph ENE | 92% |
| Sunday | 67°F | Patchy Fog | 5 to 12 mph NE | 78% |
| Sunday Night | 52°F | Mostly Cloudy | 8 to 12 mph NE | 1% |
| Monday | 62°F | Partly Sunny | 12 mph NE | 2% |
| Monday Night | 49°F | Mostly Cloudy | 10 mph NE | 3% |
| Tuesday | 62°F | Partly Sunny | 10 to 14 mph NE | 10% |
| Tuesday Night | 51°F | Chance Rain Showers | 14 mph ENE | 40% |
| Wednesday | 61°F | Chance Rain Showers | 15 mph ENE | 50% |
| Wednesday Night | 52°F | Chance Rain Showers | 8 to 13 mph E | 50% |
| Thursday | 64°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph E | 16% |
| Thursday Night | 50°F | Mostly Cloudy | 3 to 8 mph ENE | 13% |
| Friday | 68°F | Mostly Sunny | 5 to 8 mph NE | 11% |
| Friday Night | 50°F | Partly Cloudy | 3 to 7 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Pontiac, MI
Last spring frost
Apr 26
First fall frost
Oct 22
Growing season
177 days
Hardiness zone
6a
Explore more for Pontiac, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Pontiac Wwtp, Mi (2.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.