Hysham, MT Weather & Growing Conditions
This Afternoon
61°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy. High near 61, with temperatures falling to around 59 in the afternoon. Northeast wind around 15 mph. Chance of precipitation is 100%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 61°F | Showers And Thunderstorms | 15 mph NE | 98% |
| Tonight | 51°F | Showers And Thunderstorms | 10 to 14 mph NE | 94% |
| Sunday | 60°F | Rain Showers | 10 mph ENE | 88% |
| Sunday Night | 48°F | Slight Chance Rain Showers then Patchy Fog | 8 mph E | 15% |
| Monday | 67°F | Patchy Fog then Mostly Cloudy | 6 to 10 mph SE | 5% |
| Monday Night | 48°F | Mostly Clear then Patchy Fog | 7 to 12 mph ESE | 0% |
| Tuesday | 75°F | Patchy Fog then Sunny | 8 mph SE | 0% |
| Tuesday Night | 52°F | Mostly Clear | 6 mph ESE | 2% |
| Wednesday | 77°F | Partly Sunny | 2 to 6 mph SSE | 5% |
| Wednesday Night | 52°F | Partly Cloudy | 3 mph SSE | 4% |
| Thursday | 79°F | Sunny | 3 to 8 mph SW | 3% |
| Thursday Night | 53°F | Mostly Clear | 7 mph E | 2% |
| Friday | 79°F | Mostly Sunny | 5 to 10 mph SE | 1% |
| Friday Night | 52°F | Partly Cloudy | 8 mph E | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hysham, MT
Last spring frost
May 21
First fall frost
Sep 19
Growing season
120 days
Hardiness zone
4b
Explore more for Hysham, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Ingomar 9 E, Mt (9.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.