Crow Agency, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Crow Agency, a community in Big Horn County, Montana.
Tonight
55°F
Showers And Thunderstorms
Showers and thunderstorms before midnight, then patchy fog and showers and thunderstorms likely between midnight and 3am, then patchy fog and showers and thunderstorms. Cloudy. Low around 55, with temperatures rising to around 57 overnight. North northwest wind around 5 mph. Chance of precipitation is 90%.
7-day forecast for Crow Agency
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Showers And Thunderstorms | 5 mph NNW | 88% |
| Saturday | 64°F | Patchy Fog | 5 to 10 mph N | 95% |
| Saturday Night | 48°F | Patchy Fog | 8 to 13 mph N | 91% |
| Sunday | 64°F | Rain Showers | 12 mph NW | 76% |
| Sunday Night | 46°F | Chance Rain Showers then Mostly Cloudy | 2 to 6 mph ESE | 31% |
| Monday | 73°F | Mostly Sunny | 3 mph SE | 0% |
| Monday Night | 46°F | Mostly Clear | 6 mph SE | 0% |
| Tuesday | 80°F | Sunny | 3 mph SSW | 0% |
| Tuesday Night | 49°F | Partly Cloudy | 5 mph ESE | 9% |
| Wednesday | 81°F | Mostly Sunny | 5 mph WSW | 4% |
| Wednesday Night | 48°F | Mostly Clear | 5 mph ESE | 4% |
| Thursday | 82°F | Sunny | 5 mph SSW | 1% |
| Thursday Night | 50°F | Partly Cloudy | 6 mph ESE | 2% |
| Friday | 83°F | Mostly Sunny | 5 mph S | 4% |
Forecast source: National Weather Service (api.weather.gov) for Crow Agency (45.603, -107.459). Updated through the day.
Growing snapshot for Crow Agency
Last spring frost
May 13
First fall frost
Sep 29
Growing season
135 days
Hardiness zone
4b
More local growing data for Crow Agency: nearby ZIP 59031 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hardin, Mt (19.7 mi from Crow Agency). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.