Malta, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Malta, a city in Phillips County, Montana.
Tonight
29°F
Patchy Fog
Patchy fog. Partly cloudy, with a low around 29. East northeast wind around 1 mph.
7-day forecast for Malta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 29°F | Patchy Fog | 1 mph ENE | 0% |
| Wednesday | 47°F | Patchy Fog then Mostly Sunny | 0 to 3 mph WNW | 0% |
| Wednesday Night | 28°F | Mostly Cloudy | 2 mph SSW | 0% |
| Thursday | 50°F | Mostly Sunny | 3 mph SSW | 0% |
| Thursday Night | 32°F | Partly Cloudy | 3 to 7 mph WSW | 1% |
| Friday | 54°F | Sunny | 5 to 12 mph WSW | 4% |
| Friday Night | 36°F | Partly Cloudy | 9 to 15 mph WSW | 6% |
| Saturday | 57°F | Sunny | 5 to 15 mph WSW | 1% |
| Saturday Night | 33°F | Partly Cloudy | 5 mph SSW | 0% |
| Sunday | 63°F | Partly Sunny | 2 to 12 mph SW | 1% |
| Sunday Night | 37°F | Partly Cloudy | 12 to 21 mph W | 0% |
| Monday | 54°F | Mostly Sunny | 5 to 12 mph W | 0% |
| Monday Night | 34°F | Mostly Cloudy | 5 mph SSW | 0% |
| Tuesday | 58°F | Mostly Sunny | 3 to 9 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Malta (48.355, -107.870). Updated through the day.
Growing snapshot for Malta
Last spring frost
May 16
First fall frost
Sep 23
Growing season
128 days
Hardiness zone
4a
More local growing data for Malta: nearby ZIP 59538 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Malta 35 S, Mt (13.8 mi from Malta). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.