Grassmere, WA Weather Forecast
Local 7-day forecast
Rain then Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Grassmere, WA in one place.
Rain before 2pm, then showers and thunderstorms between 2pm and 5pm, then rain. Cloudy, with a high near 57. West southwest wind 3 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Grassmere, WA 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: Jun 8, 2026 12:57 AM PDT.
The active forecast window currently covers Jun 9 to Jun 14, 2026 for Grassmere, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 12:57 AM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Grassmere
Sunday looks like the warmest upcoming period in Grassmere at 86 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Tuesday Night at about 2 to 9 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 12:57 AM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- SEW
- Radar station
- KATX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Rain. Cloudy, with a low around 46. Southwest wind 2 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain likely before 5pm. Mostly cloudy, with a high near 61. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 45.
Mostly sunny, with a high near 68.
Mostly clear, with a low around 48.
Sunny, with a high near 75.
Mostly clear, with a low around 53.
Sunny, with a high near 83.
Mostly clear, with a low around 57.
Sunny, with a high near 86.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Rain then Showers And Thunderstorms
|
57°F |
3 to 8 mph
WSW
|
|
Tuesday Night
Jun 9
|
Light Rain
|
46°F |
2 to 9 mph
SW
|
|
Wednesday
Jun 10
|
Light Rain Likely
|
61°F |
2 to 6 mph
WSW
|
|
Wednesday Night
Jun 10
|
Partly Cloudy
|
45°F |
0 to 6 mph
N
|
|
Thursday
Jun 11
|
Mostly Sunny
|
68°F |
0 to 8 mph
SW
|
|
Thursday Night
Jun 11
|
Mostly Clear
|
48°F |
1 to 8 mph
N
|
|
Friday
Jun 12
|
Sunny
|
75°F |
0 to 8 mph
NW
|
|
Friday Night
Jun 12
|
Mostly Clear
|
53°F |
1 to 8 mph
N
|
|
Saturday
Jun 13
|
Sunny
|
83°F |
1 to 7 mph
NW
|
|
Saturday Night
Jun 13
|
Mostly Clear
|
57°F |
2 to 7 mph
NNW
|
|
Sunday
Jun 14
|
Sunny
|
86°F |
2 to 7 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grassmere.