Malta, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Malta, a city in Phillips County, Montana.
Today
70°F
Mostly Cloudy
Mostly cloudy, with a high near 70. East northeast wind around 12 mph, with gusts as high as 20 mph.
7-day forecast for Malta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Mostly Cloudy | 12 mph ENE | 0% |
| Tonight | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 9 mph ENE | 17% |
| Sunday | 66°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 10 mph ESE | 16% |
| Sunday Night | 47°F | Partly Cloudy | 6 to 10 mph SE | 1% |
| Monday | 73°F | Mostly Sunny | 6 to 14 mph SE | 1% |
| Monday Night | 49°F | Mostly Clear | 6 to 13 mph SE | 0% |
| Tuesday | 79°F | Sunny | 5 mph SSE | 0% |
| Tuesday Night | 50°F | Mostly Clear | 1 to 5 mph SE | 2% |
| Wednesday | 81°F | Sunny | 1 to 7 mph SE | 3% |
| Wednesday Night | 51°F | Partly Cloudy | 5 mph SSE | 3% |
| Thursday | 82°F | Sunny | 3 to 7 mph S | 3% |
| Thursday Night | 52°F | Mostly Clear | 7 mph SE | 5% |
| Friday | 80°F | Mostly Sunny | 6 to 14 mph SE | 3% |
| Friday Night | 49°F | Partly Cloudy | 9 to 13 mph ESE | 14% |
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 Sep 19, 2026.