Kilby Butte Colony, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kilby Butte Colony, a community in Musselshell County, Montana.
Tonight
48°F
Patchy Fog
Patchy fog and showers and thunderstorms. Cloudy. Low around 48, with temperatures rising to around 50 overnight. North wind 8 to 12 mph. Chance of precipitation is 100%.
7-day forecast for Kilby Butte Colony
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 48°F | Patchy Fog | 8 to 12 mph N | 95% |
| Sunday | 62°F | Rain Showers | 8 mph NNE | 84% |
| Sunday Night | 48°F | Areas Of Fog | 3 mph SE | 11% |
| Monday | 70°F | Patchy Fog then Partly Sunny | 2 to 7 mph S | 0% |
| Monday Night | 47°F | Mostly Clear then Patchy Fog | 2 to 7 mph S | 0% |
| Tuesday | 79°F | Patchy Fog then Sunny | 3 to 7 mph SSW | 0% |
| Tuesday Night | 51°F | Partly Cloudy | 0 to 5 mph SSE | 2% |
| Wednesday | 80°F | Mostly Sunny | 5 mph SW | 4% |
| Wednesday Night | 51°F | Mostly Clear | 2 to 6 mph SSW | 4% |
| Thursday | 81°F | Sunny | 8 mph SSW | 1% |
| Thursday Night | 52°F | Mostly Clear | 6 mph SE | 1% |
| Friday | 79°F | Mostly Sunny | 8 mph SSW | 1% |
| Friday Night | 50°F | Partly Cloudy | 5 to 9 mph S | 9% |
| Saturday | 71°F | Partly Sunny | 10 mph NNW | 14% |
Forecast source: National Weather Service (api.weather.gov) for Kilby Butte Colony (46.476, -108.360). Updated through the day.
Growing snapshot for Kilby Butte Colony
Last spring frost
May 20
First fall frost
Sep 21
Growing season
124 days
Hardiness zone
4b
More local growing data for Kilby Butte Colony: 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 Kilby Butte Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.