Grimes Pass, ID Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grimes Pass, ID in one place.
Sunny, with a high near 84. North wind 0 to 3 mph.
Local Weather Overview
This forecast page for Grimes Pass, 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: Sep 14, 2026 9:02 PM MDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Grimes Pass, ID.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 14, 2026 9:02 PM MDT
- Forecast office
- BOI
- Source
- NOAA / NWS
Daily Outlook
This Week in Grimes Pass
Wednesday looks like the warmest upcoming period in Grimes Pass at 84 degrees F.
Friday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Wednesday at about 0 to 3 mph N.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 9:02 PM MDT
- 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
A chance of rain showers after midnight. Partly cloudy, with a low around 50. North northeast wind around 3 mph. Chance of precipitation is 30%.
A slight chance of rain showers before noon, then a chance of showers and thunderstorms. Mostly sunny, with a high near 82. Chance of precipitation is 40%.
A chance of rain showers. Partly cloudy, with a low around 46. Chance of precipitation is 30%.
A chance of rain showers. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Mostly clear, with a low around 44.
Sunny, with a high near 79.
Mostly clear, with a low around 45.
Sunny, with a high near 83.
Mostly clear, with a low around 46.
Sunny, with a high near 83.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Sunny
|
84°F |
0 to 3 mph
N
|
|
Wednesday Night
Sep 16
|
Partly Cloudy then Chance Rain Showers
|
50°F |
3 mph
NNE
|
|
Thursday
Sep 17
|
Chance Showers And Thunderstorms
|
82°F |
3 mph
S
|
|
Thursday Night
Sep 17
|
Chance Rain Showers
|
46°F |
0 to 3 mph
WNW
|
|
Friday
Sep 18
|
Chance Rain Showers
|
75°F |
2 mph
NW
|
|
Friday Night
Sep 18
|
Mostly Clear
|
44°F |
0 to 3 mph
N
|
|
Saturday
Sep 19
|
Sunny
|
79°F |
2 mph
NNW
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
45°F |
0 to 3 mph
NNE
|
|
Sunday
Sep 20
|
Sunny
|
83°F |
1 mph
NNE
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
46°F |
2 mph
N
|
|
Monday
Sep 21
|
Sunny
|
83°F |
2 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grimes Pass.
Nearby forecast pages are not available for this location yet.