What is today's weather forecast for Saint John, WA?

Today's forecast for Saint John shows a high of 53 degrees and a low of 38 degrees Fahrenheit. A chance of rain before 1pm, then a chance of rain after 4pm.

What is the 7-day weather forecast for Saint John, WA?

The 7-day forecast for Saint John shows highs from 41 to 53 degrees and lows from 29 to 38 degrees Fahrenheit. Expect precipitation on 7 days with chances of 20% or higher.

Will it rain in Saint John, WA this week?

Yes, rain is possible in Saint John this week. Precipitation chances: Tuesday (100% chance), Wednesday (60% chance), Thursday (90% chance), Friday (60% chance), Saturday (40% chance), Sunday (50% chance), Monday (60% chance).

How accurate is the Saint John weather forecast?

WeatherForYou provides highly accurate Saint John forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Saint John, WA Weather Forecast and Current Conditions

WEATHER ALERTS - High Wind Warning

Current Conditions

Switch to Metric Units

46°F
Feels Like 45°F

Humidity 82% Dew Point 41°F Wind SSW 3 MPH Gusts 9 Barometer 30.04 in.

Report from a MADIS/MESONET weather station 16.5 mi. ESE of central Saint John
at 4:36 AM Tue, Dec 16, 2025

Point Forecast at a Glance

TueDec 16

50%

WedDec 17

60%

ThuDec 18

90%

FriDec 19

60%

SatDec 20

40%

SunDec 21

40%

MonDec 22

60%

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 41°F to 53°F. Unsettled weather expected with wintry mix likely on at least 7 days.

Climate Context

This week's forecast shows temperatures running 9°F above the historical average for December. Normal highs for this period are around 36°F with lows around 25°F.

This Date in Weather History

1811 - An estimated Magnitude 7.5 earthquake struck the Mississippi Valley near the town of New Madrid in Missouri at 2:15 am local time. People were awakened by the shaking in New York City, Washington D.C., and Charleston, South Carolina. The ground motions were described as most alarming and frightening in places like Nashville, Tennessee, and Louisville, Kentucky. In the epicentral area, the ground surface was described as in great convulsion with sand and water ejected tens of feet into the air.

Saint John, WA 7 Day Weather Forecast Details

Tuesday Dec 16

Day: A chance of rain before 1pm, then a chance of rain after 4pm. Mostly cloudy, with a high near 53. Southwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Night: Rain before 1am, then showers and possibly a thunderstorm, mainly after 1am. Low around 38. Windy, with a southwest wind 16 to 21 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday Dec 17

Day: Rain and snow likely before 1pm, then a slight chance of rain. Some thunder is also possible. Partly sunny, with a high near 48. Windy, with a southwest wind 24 to 31 mph, with gusts as high as 47 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Night: A chance of rain and snow after 4am. Increasing clouds, with a low around 34. South wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Thursday Dec 18

Day: Rain, possibly mixed with snow, becoming all rain after 1pm. High near 47. Southeast wind 10 to 14 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Night: Rain before 1am, then rain likely, possibly mixed with snow. Low around 36. Breezy. Chance of precipitation is 90%. Little or no snow accumulation expected.

Friday Dec 19

Day: Snow likely, possibly mixed with rain. Mostly cloudy, with a high near 43. Chance of precipitation is 60%. Little or no snow accumulation expected.

Night: A chance of rain and snow before 10pm, then a chance of snow. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

Saturday Dec 20

Day: A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 40%.

Night: A chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

Sunday Dec 21

Day: A chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 40%.

Night: A chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 50%.

Monday Dec 22

Day: Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 45. Chance of precipitation is 60%.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

Your favorites: