St. Maries, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Maries, a city in Benewah County, Idaho.
Overnight
47°F
Patchy Smoke
Patchy smoke. Clear, with a low around 47. East wind around 1 mph.
7-day forecast for St. Maries
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Patchy Smoke | 1 mph E | 0% |
| Tuesday | 82°F | Patchy Smoke | 0 to 3 mph N | 0% |
| Tuesday Night | 50°F | Haze | 2 mph E | 0% |
| Wednesday | 88°F | Sunny then Patchy Smoke | 2 mph SW | 0% |
| Wednesday Night | 53°F | Patchy Smoke then Clear | 2 mph N | 0% |
| Thursday | 93°F | Sunny | 3 mph S | 0% |
| Thursday Night | 55°F | Mostly Clear | 3 mph SW | 0% |
| Friday | 91°F | Sunny | 2 to 7 mph S | 0% |
| Friday Night | 55°F | Clear | 3 to 7 mph SW | 0% |
| Saturday | 88°F | Sunny | 2 to 6 mph SW | 0% |
| Saturday Night | 54°F | Mostly Clear | 2 to 6 mph S | 0% |
| Sunday | 84°F | Sunny | 5 mph SW | 0% |
| Sunday Night | 52°F | Mostly Clear | 1 to 5 mph S | 0% |
| Monday | 84°F | Sunny | 1 to 5 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for St. Maries (47.315, -116.572). Updated through the day.
Growing snapshot for St. Maries
Last spring frost
May 3
First fall frost
Oct 4
Growing season
152 days
Hardiness zone
6b
More local growing data for St. Maries: nearby ZIP 83861 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Saint Maries, Id (4.7 mi from St. Maries). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.