Grandjean, ID Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grandjean, ID in one place.
Mostly sunny, with a high near 51. South wind 1 to 5 mph.
Local Weather Overview
This forecast page for Grandjean, ID is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Nov 5, 2026 4:21 PM MST.
The active forecast window currently covers Nov 7 to Nov 11, 2026 for Grandjean, ID.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 7 to Nov 11, 2026
- Latest sync
- Nov 5, 2026 4:21 PM MST
- Forecast office
- BOI
- Source
- NOAA / NWS
Daily Outlook
This Week in Grandjean
Saturday looks like the warmest upcoming period in Grandjean at 51 degrees F.
Sunday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Saturday Night at about 3 to 12 mph SSE.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Nov 5, 2026 4:21 PM MST
- Coverage
- 6 days
- Time zone
- America/Boise
- Forecast office
- BOI
- Radar station
- KCBX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 37.
Mostly sunny, with a high near 49.
Mostly cloudy, with a low around 34.
Mostly sunny, with a high near 50.
Partly cloudy, with a low around 35.
Mostly sunny, with a high near 48.
Partly cloudy, with a low around 36.
Mostly sunny, with a high near 51.
A slight chance of rain showers after 11pm. Partly cloudy, with a low around 36.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Nov 7
|
Mostly Sunny
|
51°F |
1 to 5 mph
S
|
|
Saturday Night
Nov 7
|
Mostly Clear
|
37°F |
3 to 12 mph
SSE
|
|
Sunday
Nov 8
|
Mostly Sunny
|
49°F |
2 to 7 mph
S
|
|
Sunday Night
Nov 8
|
Mostly Cloudy
|
34°F |
3 mph
SSE
|
|
Monday
Nov 9
|
Mostly Sunny
|
50°F |
1 to 6 mph
S
|
|
Monday Night
Nov 9
|
Partly Cloudy
|
35°F |
1 to 7 mph
SSE
|
|
Tuesday
Nov 10
|
Mostly Sunny
|
48°F |
1 to 5 mph
S
|
|
Tuesday Night
Nov 10
|
Partly Cloudy
|
36°F |
3 mph
SE
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
51°F |
3 mph
SSE
|
|
Wednesday Night
Nov 11
|
Slight Chance Rain Showers
|
36°F |
2 to 7 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grandjean.