Grasmere, ID Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grasmere, ID in one place.
Sunny, with a high near 74. Northwest wind 5 to 8 mph.
Local Weather Overview
This forecast page for Grasmere, 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 9:01 PM MDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Grasmere, ID.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 14, 2026 9:01 PM MDT
- Forecast office
- BOI
- Source
- NOAA / NWS
Daily Outlook
This Week in Grasmere
Monday looks like the warmest upcoming period in Grasmere at 78 degrees F.
Friday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Thursday Night at about 9 to 16 mph W.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Sep 14, 2026 9:01 PM MDT
- Coverage
- 7 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 46. West northwest wind around 7 mph.
Sunny, with a high near 76. North northeast wind 6 to 12 mph, with gusts as high as 21 mph.
Partly cloudy, with a low around 50. North wind 7 to 13 mph.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76. Chance of precipitation is 20%.
Partly cloudy, with a low around 48.
Sunny, with a high near 71.
Mostly clear, with a low around 45.
Sunny, with a high near 73.
Mostly clear, with a low around 47.
Sunny, with a high near 77.
Mostly clear, with a low around 50.
Sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Sep 15
|
Sunny
|
74°F |
5 to 8 mph
NW
|
|
Tuesday Night
Sep 15
|
Mostly Clear
|
46°F |
7 mph
WNW
|
|
Wednesday
Sep 16
|
Sunny
|
76°F |
6 to 12 mph
NNE
|
|
Wednesday Night
Sep 16
|
Partly Cloudy
|
50°F |
7 to 13 mph
N
|
|
Thursday
Sep 17
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
76°F |
7 to 15 mph
SSW
|
|
Thursday Night
Sep 17
|
Partly Cloudy
|
48°F |
9 to 16 mph
W
|
|
Friday
Sep 18
|
Sunny
|
71°F |
8 to 12 mph
W
|
|
Friday Night
Sep 18
|
Mostly Clear
|
45°F |
6 to 13 mph
WNW
|
|
Saturday
Sep 19
|
Sunny
|
73°F |
9 mph
WNW
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
47°F |
5 to 12 mph
NW
|
|
Sunday
Sep 20
|
Sunny
|
77°F |
5 to 9 mph
NNE
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
50°F |
6 to 10 mph
WNW
|
|
Monday
Sep 21
|
Sunny
|
78°F |
6 to 9 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grasmere.