Saint John, WA Weather Forecast
Local 7-day forecast
Light Rain Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Saint John, WA in one place.
Rain likely. Mostly cloudy, with a high near 59.
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: Apr 14, 2026 12:57 PM PDT.
The active forecast window currently covers Apr 19 to Apr 20, 2026 for Saint John, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 19 to Apr 20, 2026
- Latest sync
- Apr 14, 2026 12:57 PM PDT
- Forecast office
- PQR
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint John
Monday looks like the warmest upcoming period in Saint John at 61 degrees F.
Sunday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Sunday at about 8 mph SSW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 14, 2026 12:57 PM PDT
- Coverage
- 3 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
A chance of rain. Mostly cloudy, with a low around 44.
A chance of rain. Partly sunny, with a high near 61.
A chance of rain. Mostly cloudy, with a low around 44.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 19
|
Light Rain Likely
|
59°F |
8 mph
SSW
|
|
Sunday Night
Apr 19
|
Chance Light Rain
|
44°F |
5 to 8 mph
WSW
|
|
Monday
Apr 20
|
Chance Light Rain
|
61°F |
5 to 8 mph
WSW
|
|
Monday Night
Apr 20
|
Chance Light Rain
|
44°F |
3 to 8 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint John.