Sunnyside, WA Weather Forecast
Local 7-day forecast
Widespread Frost
Track current conditions, temperature changes, wind, and the full daily outlook for Sunnyside, WA in one place.
Widespread frost. Mostly clear. Low around 29, with temperatures rising to around 32 overnight. Wind around 0 mph.
Local Weather Overview
This forecast page for Sunnyside, 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: Oct 13, 2026 7:11 AM PDT.
The active forecast window currently covers Oct 13 to Oct 19, 2026 for Sunnyside, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 7:11 AM PDT
- Forecast office
- PDT
- Source
- NOAA / NWS
Daily Outlook
This Week in Sunnyside
Friday looks like the warmest upcoming period in Sunnyside at 74 degrees F.
Overnight is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Tuesday at about 2 mph E.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 7:11 AM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- PDT
- Radar station
- KPDT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Widespread frost before 11am. Mostly sunny, with a high near 66. East wind around 2 mph.
Patchy frost after 5am. Partly cloudy, with a low around 37. Northeast wind around 2 mph.
Patchy frost before 8am. Mostly sunny, with a high near 71. Southeast wind around 2 mph.
Mostly clear, with a low around 39. Northeast wind around 2 mph.
Sunny, with a high near 71.
Clear, with a low around 39.
Sunny, with a high near 74.
Partly cloudy, with a low around 41.
Mostly sunny, with a high near 72.
Mostly clear, with a low around 37.
Mostly sunny, with a high near 68.
A slight chance of rain showers after 5am. Partly cloudy, with a low around 39.
A slight chance of rain showers before 5pm. Partly sunny, with a high near 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 13
|
Widespread Frost
|
29°F |
0 mph
|
|
Tuesday
Oct 13
|
Widespread Frost then Mostly Sunny
|
66°F |
2 mph
E
|
|
Tuesday Night
Oct 13
|
Partly Cloudy then Patchy Frost
|
37°F |
2 mph
NE
|
|
Wednesday
Oct 14
|
Patchy Frost then Mostly Sunny
|
71°F |
2 mph
SE
|
|
Wednesday Night
Oct 14
|
Mostly Clear
|
39°F |
2 mph
NE
|
|
Thursday
Oct 15
|
Sunny
|
71°F |
2 mph
N
|
|
Thursday Night
Oct 15
|
Clear
|
39°F |
2 mph
NE
|
|
Friday
Oct 16
|
Sunny
|
74°F |
1 mph
E
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
41°F |
1 mph
NE
|
|
Saturday
Oct 17
|
Mostly Sunny
|
72°F |
2 mph
W
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
37°F |
2 mph
NW
|
|
Sunday
Oct 18
|
Mostly Sunny
|
68°F |
1 mph
E
|
|
Sunday Night
Oct 18
|
Partly Cloudy then Slight Chance Rain Showers
|
39°F |
1 mph
NE
|
|
Monday
Oct 19
|
Slight Chance Rain Showers
|
65°F |
2 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sunnyside.
