Parkman, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Parkman, a community in Big Horn County, Wyoming.
Overnight
55°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms between 2am and 3am, then patchy fog and a chance of showers and thunderstorms. Mostly cloudy, with a low around 55. West wind around 3 mph. Chance of precipitation is 40%.
7-day forecast for Parkman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Chance Showers And Thunderstorms | 3 mph W | 44% |
| Saturday | 61°F | Patchy Fog | 3 to 7 mph NW | 87% |
| Saturday Night | 48°F | Patchy Fog | 5 to 8 mph NW | 91% |
| Sunday | 60°F | Rain Showers Likely | 5 to 8 mph NW | 72% |
| Sunday Night | 46°F | Chance Rain Showers then Mostly Cloudy | 1 to 6 mph W | 31% |
| Monday | 68°F | Mostly Sunny | 1 to 6 mph SE | 8% |
| Monday Night | 47°F | Mostly Clear | 7 mph S | 1% |
| Tuesday | 75°F | Sunny | 5 mph S | 2% |
| Tuesday Night | 52°F | Mostly Clear then Slight Chance Rain Showers | 5 mph S | 15% |
| Wednesday | 77°F | Mostly Sunny | 5 mph ENE | 13% |
| Wednesday Night | 51°F | Mostly Clear | 2 to 6 mph S | 6% |
| Thursday | 80°F | Sunny | 6 mph S | 2% |
| Thursday Night | 53°F | Mostly Clear | 7 mph SSE | 1% |
| Friday | 80°F | Mostly Sunny | 6 mph SSE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Parkman (44.957, -107.313). Updated through the day.
Growing snapshot for Parkman
Last spring frost
May 21
First fall frost
Sep 17
Growing season
117 days
Hardiness zone
4b
More local growing data for Parkman: nearby ZIP 59089 weather · frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Wyola 1 Sw, Mt (4.9 mi from Parkman). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.