Klein, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Klein, a community in Musselshell County, Montana.
Overnight
53°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. Low around 53, with temperatures rising to around 56 overnight. North wind 8 to 12 mph. Chance of precipitation is 90%.
7-day forecast for Klein
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Showers And Thunderstorms | 8 to 12 mph N | 93% |
| Saturday | 60°F | Patchy Fog | 14 mph N | 100% |
| Saturday Night | 49°F | Patchy Fog | 12 mph NNE | 92% |
| Sunday | 62°F | Rain Showers | 8 mph NNE | 86% |
| Sunday Night | 47°F | Slight Chance Rain Showers then Patchy Fog | 1 to 6 mph ESE | 15% |
| Monday | 74°F | Mostly Sunny | 2 to 7 mph S | 0% |
| Monday Night | 48°F | Mostly Clear | 1 to 7 mph SSW | 0% |
| Tuesday | 80°F | Sunny | 3 to 7 mph SW | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 3 mph S | 1% |
| Wednesday | 81°F | Sunny | 5 mph SW | 4% |
| Wednesday Night | 51°F | Mostly Clear | 5 mph S | 2% |
| Thursday | 81°F | Sunny | 9 mph SSW | 0% |
| Thursday Night | 51°F | Mostly Clear | 2 to 6 mph SSE | 2% |
| Friday | 81°F | Mostly Sunny | 5 to 9 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Klein (46.398, -108.553). Updated through the day.
Growing snapshot for Klein
Last spring frost
May 20
First fall frost
Sep 21
Growing season
124 days
Hardiness zone
4b
More local growing data for Klein: nearby ZIP 59072 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Roundup, Mt (6.2 mi from Klein). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.