Saint John, WA Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Saint John, WA in one place.
Mostly cloudy, with a high near 75. Southwest wind 2 to 9 mph.
Local Weather Overview
This forecast page for Saint John, 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 1, 2026 10:46 AM PDT.
The active forecast window currently covers Jun 3 to Jun 7, 2026 for Saint John, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 3 to Jun 7, 2026
- Latest sync
- Jun 1, 2026 10:46 AM PDT
- Forecast office
- PQR
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint John
Wednesday looks like the warmest upcoming period in Saint John at 75 degrees F.
Saturday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Thursday Night at about 1 to 14 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 1, 2026 10:46 AM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- PQR
- Radar station
- KRTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 52.
Mostly sunny, with a high near 72.
Mostly clear, with a low around 49.
A slight chance of rain after 5pm. Mostly sunny, with a high near 71.
A chance of rain. Mostly cloudy, with a low around 50.
A chance of rain before 11am, then showers and thunderstorms likely between 11am and 5pm, then a chance of rain. Partly sunny, with a high near 65.
A chance of rain before 5am. Partly cloudy, with a low around 47.
A chance of rain after 11am. Mostly sunny, with a high near 70.
A slight chance of rain before 11pm. Partly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 3
|
Mostly Cloudy
|
75°F |
2 to 9 mph
SW
|
|
Wednesday Night
Jun 3
|
Mostly Cloudy
|
52°F |
2 to 10 mph
WNW
|
|
Thursday
Jun 4
|
Mostly Sunny
|
72°F |
2 to 10 mph
WNW
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
49°F |
1 to 14 mph
NW
|
|
Friday
Jun 5
|
Mostly Sunny then Slight Chance Light Rain
|
71°F |
1 to 9 mph
W
|
|
Friday Night
Jun 5
|
Chance Light Rain
|
50°F |
5 to 10 mph
W
|
|
Saturday
Jun 6
|
Showers And Thunderstorms Likely
|
65°F |
6 to 10 mph
WSW
|
|
Saturday Night
Jun 6
|
Chance Light Rain
|
47°F |
2 to 10 mph
WSW
|
|
Sunday
Jun 7
|
Chance Light Rain
|
70°F |
2 to 7 mph
W
|
|
Sunday Night
Jun 7
|
Slight Chance Light Rain then Partly Cloudy
|
49°F |
2 to 7 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint John.