Roberts, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Roberts, a city in Jefferson County, Idaho.
Tonight
43°F
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers and thunderstorms likely before 9pm, then a chance of showers and thunderstorms between 9pm and 2am, then a chance of showers and thunderstorms. Mostly cloudy. Low around 43, with temperatures rising to around 46 overnight. South southeast wind around 7 mph. Chance of precipitation is 60%.
7-day forecast for Roberts
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 7 mph SSE | 61% |
| Saturday | 62°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 3 to 7 mph SSW | 58% |
| Saturday Night | 42°F | Mostly Cloudy | 3 mph S | 10% |
| Sunday | 68°F | Mostly Sunny | 2 mph SSE | 0% |
| Sunday Night | 41°F | Mostly Clear | 5 mph E | 0% |
| Monday | 73°F | Sunny | 5 mph NNE | 0% |
| Monday Night | 43°F | Mostly Clear | 5 mph ENE | 0% |
| Tuesday | 75°F | Mostly Sunny | 5 mph N | 1% |
| Tuesday Night | 43°F | Partly Cloudy | 3 mph SE | 5% |
| Wednesday | 76°F | Sunny | 5 mph SSE | 2% |
| Wednesday Night | 43°F | Mostly Clear | 3 mph ESE | 3% |
| Thursday | 78°F | Sunny | 5 mph N | 2% |
| Thursday Night | 45°F | Partly Cloudy | 3 mph ENE | 0% |
| Friday | 78°F | Mostly Sunny | 5 mph ENE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Roberts (43.720, -112.129). Updated through the day.
Growing snapshot for Roberts
Last spring frost
May 9
First fall frost
Oct 5
Growing season
148 days
Hardiness zone
5a
More local growing data for Roberts: nearby ZIP 83431 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Rigby, Id (6.1 mi from Roberts). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.