Chester, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chester, a town in Liberty County, Montana.
Today
49°F
Patchy Fog then Sunny
Patchy fog before 11am. Sunny. High near 49, with temperatures falling to around 43 in the afternoon. South southeast wind 2 to 6 mph.
7-day forecast for Chester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 49°F | Patchy Fog then Sunny | 2 to 6 mph SSE | 0% |
| Tonight | 27°F | Mostly Cloudy then Patchy Fog | 2 mph N | 0% |
| Wednesday | 46°F | Patchy Fog | 3 mph WSW | 0% |
| Wednesday Night | 26°F | Patchy Fog | 2 mph WSW | 0% |
| Thursday | 51°F | Patchy Fog then Mostly Sunny | 1 to 9 mph WSW | 0% |
| Thursday Night | 30°F | Partly Cloudy | 6 to 13 mph WSW | 0% |
| Friday | 53°F | Mostly Sunny | 6 to 16 mph WSW | 3% |
| Friday Night | 34°F | Partly Cloudy | 13 to 18 mph W | 3% |
| Saturday | 53°F | Mostly Sunny | 6 to 13 mph W | 1% |
| Saturday Night | 33°F | Partly Cloudy | 6 mph SW | 0% |
| Sunday | 59°F | Partly Sunny | 5 to 14 mph WSW | 1% |
| Sunday Night | 35°F | Mostly Cloudy | 6 to 15 mph W | 3% |
| Monday | 53°F | Partly Sunny | 7 mph SW | 3% |
| Monday Night | 34°F | Mostly Cloudy | 7 mph S | 2% |
Forecast source: National Weather Service (api.weather.gov) for Chester (48.511, -110.966). Updated through the day.
Growing snapshot for Chester
Last spring frost
May 24
First fall frost
Sep 17
Growing season
115 days
Hardiness zone
4a
More local growing data for Chester: nearby ZIP 59522 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Chester, Mt (3.3 mi from Chester). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.