Malta, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Malta, a city in Phillips County, Montana.
Today
77°F
Sunny
Sunny, with a high near 77. West northwest wind 6 to 12 mph, with gusts as high as 20 mph.
7-day forecast for Malta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Sunny | 6 to 12 mph WNW | 0% |
| Tonight | 49°F | Mostly Clear | 2 to 10 mph WSW | 1% |
| Wednesday | 87°F | Mostly Sunny | 3 to 14 mph W | 0% |
| Wednesday Night | 52°F | Partly Cloudy | 1 to 14 mph WNW | 0% |
| Thursday | 92°F | Sunny | 1 to 10 mph WNW | 0% |
| Thursday Night | 54°F | Mostly Clear | 5 to 15 mph NNE | 0% |
| Friday | 92°F | Sunny | 5 to 8 mph E | 0% |
| Friday Night | 56°F | Mostly Clear | 8 to 13 mph NE | 1% |
| Saturday | 91°F | Sunny | 12 mph NE | 0% |
| Saturday Night | 58°F | Partly Cloudy | 10 mph NE | 2% |
| Sunday | 89°F | Mostly Sunny | 12 mph NE | 2% |
| Sunday Night | 57°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 13 mph NE | 15% |
| Monday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 12 mph NE | 17% |
| Monday Night | 57°F | Partly Cloudy then Chance Rain Showers | 14 mph ENE | 27% |
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 Aug 4, 2026.