Rexburg, ID Weather & Growing Conditions
Today
82°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 82. South southwest wind 3 to 9 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Patchy Smoke | 3 to 9 mph SSW | 0% |
| Tonight | 48°F | Patchy Smoke | 5 to 9 mph SE | 1% |
| Wednesday | 85°F | Areas Of Smoke | 3 to 9 mph S | 0% |
| Wednesday Night | 52°F | Mostly Clear | 7 mph SSE | 0% |
| Thursday | 92°F | Sunny | 3 to 9 mph S | 0% |
| Thursday Night | 56°F | Clear | 5 to 8 mph SE | 0% |
| Friday | 96°F | Sunny | 3 to 9 mph ESE | 0% |
| Friday Night | 58°F | Mostly Clear | 6 to 12 mph S | 0% |
| Saturday | 94°F | Sunny | 5 to 13 mph SW | 0% |
| Saturday Night | 60°F | Mostly Clear | 6 to 12 mph S | 0% |
| Sunday | 94°F | Sunny | 5 to 16 mph S | 0% |
| Sunday Night | 60°F | Mostly Clear | 7 to 21 mph S | 1% |
| Monday | 92°F | Sunny | 5 to 14 mph S | 1% |
| Monday Night | 58°F | Mostly Clear | 8 to 16 mph S | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rexburg, ID
Last spring frost
May 12
First fall frost
Sep 24
Growing season
132 days
Hardiness zone
5a
Explore more for Rexburg, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Rexburg Byu Idaho, Id (1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.