Pontiac, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pontiac, a city in Oakland County, Michigan.
This Afternoon
74°F
Mostly Sunny
Mostly sunny. High near 74, with temperatures falling to around 72 in the afternoon. South wind around 13 mph, with gusts as high as 24 mph.
7-day forecast for Pontiac
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 13 mph S | 2% |
| Tonight | 60°F | Mostly Cloudy | 10 mph SSE | 6% |
| Wednesday | 67°F | Light Rain | 10 to 15 mph S | 93% |
| Wednesday Night | 50°F | Chance Light Rain then Mostly Cloudy | 8 to 13 mph SSW | 54% |
| Thursday | 60°F | Mostly Cloudy then Chance Light Rain | 9 to 14 mph SW | 26% |
| Thursday Night | 45°F | Chance Light Rain | 3 to 8 mph W | 31% |
| Friday | 54°F | Chance Light Rain | 3 to 9 mph NW | 53% |
| Friday Night | 38°F | Chance Light Rain | 9 mph NNW | 53% |
| Saturday | 51°F | Slight Chance Light Rain then Partly Sunny | 7 to 10 mph NW | 22% |
| Saturday Night | 34°F | Partly Cloudy | 6 mph W | 6% |
| Sunday | 55°F | Mostly Sunny | 5 to 10 mph W | 14% |
| Sunday Night | 35°F | Partly Cloudy | 9 mph WNW | 14% |
| Monday | 56°F | Mostly Sunny | 7 to 10 mph W | 11% |
| Monday Night | 39°F | Partly Cloudy | 9 mph WSW | 11% |
Forecast source: National Weather Service (api.weather.gov) for Pontiac (42.649, -83.287). Updated through the day.
Growing snapshot for Pontiac
Last spring frost
Apr 26
First fall frost
Oct 22
Growing season
177 days
Hardiness zone
6a
More local growing data for Pontiac: nearby ZIP 48342 weather · frost dates · planting calendar · Michigan frost dates
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Climate data from the nearest NOAA station, Pontiac Wwtp, Mi (1 mi from Pontiac). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.