Malta, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Malta, a city in Cassia County, Idaho.
Tonight
39°F
Mostly Clear then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5am. Mostly clear. Low around 39, with temperatures rising to around 42 overnight. South southwest wind around 5 mph. Chance of precipitation is 20%.
7-day forecast for Malta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 mph SSW | 16% |
| Saturday | 65°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 mph WNW | 61% |
| Saturday Night | 39°F | Mostly Clear | 5 mph SW | 5% |
| Sunday | 72°F | Sunny | 5 mph ESE | 1% |
| Sunday Night | 43°F | Mostly Clear | 2 to 7 mph ESE | 0% |
| Monday | 77°F | Mostly Sunny | 6 mph SE | 0% |
| Monday Night | 47°F | Partly Cloudy | 6 mph SSE | 0% |
| Tuesday | 78°F | Mostly Sunny | 5 mph E | 5% |
| Tuesday Night | 46°F | Partly Cloudy | 3 to 7 mph SSW | 6% |
| Wednesday | 79°F | Sunny | 6 to 9 mph SSE | 4% |
| Wednesday Night | 46°F | Mostly Clear | 7 to 12 mph SSE | 2% |
| Thursday | 82°F | Sunny | 8 to 12 mph SSE | 3% |
| Thursday Night | 48°F | Partly Cloudy | 14 mph S | 1% |
| Friday | 82°F | Sunny | 15 mph S | 4% |
Forecast source: National Weather Service (api.weather.gov) for Malta (42.308, -113.370). Updated through the day.
Growing snapshot for Malta
Last spring frost
Jun 5
First fall frost
Sep 13
Growing season
96 days
Hardiness zone
6a
More local growing data for Malta: nearby ZIP 83323 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Malta, Id (12.4 mi from Malta). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.