St. John Weather Forecast 15 Days, Weather in St. John Today

Current weather conditions and 15 day weather forecast for St. John, Washington, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.

Current weather conditions at St. John

29 July 2025 Tuesday
33.9 ° C / 93°F
Sunny
Sunny
Feels Like : 31.9 ° C / 89.4°F
Humidity : % 15
Pressure : 1020 mb
Wind Speed : 11.9 kmph / 7.4 miles from NWNW
Visibility : 16 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 0

15 day weather forecast for St. John, WA, USA

Weather Forecast for next 15 Days for St. John including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.
Here is weather for the next 15 days in St. John, Washington state, US. To see the daily forecast, scroll to the table below.
Date
29 July 2025 Tuesday
Weather forecastSunny Sunny
Low temperature16.1 ° C
(61°F)
High temperature36.1 ° C
(97°F)
Avg. temperature26.8 ° C
(80.2°F)
Humidity% 28
Chance of rain0%
UV Index2.3
Sun PositionSunrise:05:27 AM
Sunset: 08:26 PM
Moon PositionMoonrise:10:58 AM
Moonset: 10:29 PM
Moon Phase
( Waxing Crescent )
30 July 2025 Wednesday
Weather forecastSunny Sunny
Low temperature16.4 ° C
(61.5°F)
High temperature36.2 ° C
(97.2°F)
Avg. temperature27.4 ° C
(81.3°F)
Humidity% 34
Chance of rain0%
UV Index2.3
Sun PositionSunrise:05:28 AM
Sunset: 08:25 PM
Moon PositionMoonrise:12:05 PM
Moonset: 10:44 PM
Moon Phase
( Waxing Crescent )
31 July 2025 Thursday
Weather forecastPatchy rain nearby Patchy rain nearby
Low temperature19.7 ° C
(67.5°F)
High temperature37.4 ° C
(99.3°F)
Avg. temperature29.2 ° C
(84.6°F)
Humidity% 37
Chance of rain80%
UV Index2.3
Sun PositionSunrise:05:29 AM
Sunset: 08:24 PM
Moon PositionMoonrise:01:12 PM
Moonset: 11:02 PM
Moon Phase
( Waxing Crescent )
01 August 2025 Friday
Weather forecastModerate rain Moderate rain
Low temperature19.1 ° C
(66.4°F)
High temperature29.2 ° C
(84.5°F)
Avg. temperature23.4 ° C
(74.1°F)
Humidity% 58
Chance of rain86%
UV Index2.3
Sun PositionSunrise:05:30 AM
Sunset: 08:22 PM
Moon PositionMoonrise:02:20 PM
Moonset: 11:22 PM
Moon Phase
( First Quarter )
02 August 2025 Saturday
Weather forecastSunny Sunny
Low temperature17.1 ° C
(62.7°F)
High temperature30.4 ° C
(86.6°F)
Avg. temperature23.9 ° C
(75.1°F)
Humidity% 35
Chance of rain0%
UV Index0
Sun PositionSunrise:05:32 AM
Sunset: 08:21 PM
Moon PositionMoonrise:03:29 PM
Moonset: 11:49 PM
Moon Phase
( Waxing Gibbous )
03 August 2025 Sunday
Weather forecastSunny Sunny
Low temperature17.1 ° C
(62.8°F)
High temperature28 ° C
(82.4°F)
Avg. temperature22.3 ° C
(72.2°F)
Humidity% 27
Chance of rain0%
UV Index6
Sun PositionSunrise:05:33 AM
Sunset: 08:19 PM
Moon PositionMoonrise:04:37 PM
Moonset: No moonset
Moon Phase
( Waxing Gibbous )
04 August 2025 Monday
Weather forecastPartly Cloudy  Partly Cloudy
Low temperature16.3 ° C
(61.4°F)
High temperature27.2 ° C
(80.9°F)
Avg. temperature21.5 ° C
(70.7°F)
Humidity% 33
Chance of rain0%
UV Index6
Sun PositionSunrise:05:34 AM
Sunset: 08:18 PM
Moon PositionMoonrise:05:40 PM
Moonset: 12:23 AM
Moon Phase
( Waxing Gibbous )
05 August 2025 Tuesday
Weather forecastSunny Sunny
Low temperature16 ° C
(60.9°F)
High temperature28.2 ° C
(82.8°F)
Avg. temperature22 ° C
(71.6°F)
Humidity% 39
Chance of rain0%
UV Index6
Sun PositionSunrise:05:35 AM
Sunset: 08:17 PM
Moon PositionMoonrise:06:34 PM
Moonset: 01:09 AM
Moon Phase
( Waxing Gibbous )
06 August 2025 Wednesday
Weather forecastSunny Sunny
Low temperature17.7 ° C
(63.8°F)
High temperature30.3 ° C
(86.6°F)
Avg. temperature24.4 ° C
(76°F)
Humidity% 36
Chance of rain0%
UV Index6
Sun PositionSunrise:05:37 AM
Sunset: 08:15 PM
Moon PositionMoonrise:07:18 PM
Moonset: 02:06 AM
Moon Phase
( Waxing Gibbous )
07 August 2025 Thursday
Weather forecastSunny Sunny
Low temperature18.3 ° C
(64.9°F)
High temperature28.6 ° C
(83.6°F)
Avg. temperature23.4 ° C
(74.1°F)
Humidity% 39
Chance of rain0%
UV Index6
Sun PositionSunrise:05:38 AM
Sunset: 08:13 PM
Moon PositionMoonrise:07:53 PM
Moonset: 03:16 AM
Moon Phase
( Waxing Gibbous )
08 August 2025 Friday
Weather forecastSunny Sunny
Low temperature17 ° C
(62.6°F)
High temperature31 ° C
(87.8°F)
Avg. temperature23.8 ° C
(74.9°F)
Humidity% 32
Chance of rain0%
UV Index6
Sun PositionSunrise:05:39 AM
Sunset: 08:12 PM
Moon PositionMoonrise:08:19 PM
Moonset: 04:31 AM
Moon Phase
( Waxing Gibbous )
09 August 2025 Saturday
Weather forecastSunny Sunny
Low temperature18.5 ° C
(65.4°F)
High temperature34.5 ° C
(94.1°F)
Avg. temperature26.9 ° C
(80.4°F)
Humidity% 25
Chance of rain0%
UV Index7
Sun PositionSunrise:05:40 AM
Sunset: 08:10 PM
Moon PositionMoonrise:08:41 PM
Moonset: 05:50 AM
Moon Phase
( Full Moon )
10 August 2025 Sunday
Weather forecastSunny Sunny
Low temperature22.1 ° C
(71.9°F)
High temperature37.2 ° C
(98.9°F)
Avg. temperature29.6 ° C
(85.3°F)
Humidity% 20
Chance of rain0%
UV Index7
Sun PositionSunrise:05:42 AM
Sunset: 08:09 PM
Moon PositionMoonrise:08:59 PM
Moonset: 07:09 AM
Moon Phase
( Waning Gibbous )
11 August 2025 Monday
Weather forecastSunny Sunny
Low temperature22.5 ° C
(72.5°F)
High temperature37.3 ° C
(99.1°F)
Avg. temperature30 ° C
(86°F)
Humidity% 19
Chance of rain0%
UV Index8
Sun PositionSunrise:05:43 AM
Sunset: 08:07 PM
Moon PositionMoonrise:09:17 PM
Moonset: 08:28 AM
Moon Phase
( Waning Gibbous )
Date Weather forecast Low temperature High temperature Avg. temperature Humidity Chance of rain UV Index Sun Position Moon Position
29 July 2025 Tuesday Sunny Sunny 16.1 ° C
(61°F)
36.1 ° C
(97°F)
26.8 ° C
(80.2°F)
% 28 0% 2.3 Sunrise:05:27 AM
Sunset: 08:26 PM
Moonrise:10:58 AM
Moonset: 10:29 PM
Moon Phase
( Waxing Crescent )
30 July 2025 Wednesday Sunny Sunny 16.4 ° C
(61.5°F)
36.2 ° C
(97.2°F)
27.4 ° C
(81.3°F)
% 34 0% 2.3 Sunrise:05:28 AM
Sunset: 08:25 PM
Moonrise:12:05 PM
Moonset: 10:44 PM
Moon Phase
( Waxing Crescent )
31 July 2025 Thursday Patchy rain nearby Patchy rain nearby 19.7 ° C
(67.5°F)
37.4 ° C
(99.3°F)
29.2 ° C
(84.6°F)
% 37 80% 2.3 Sunrise:05:29 AM
Sunset: 08:24 PM
Moonrise:01:12 PM
Moonset: 11:02 PM
Moon Phase
( Waxing Crescent )
01 August 2025 Friday Moderate rain Moderate rain 19.1 ° C
(66.4°F)
29.2 ° C
(84.5°F)
23.4 ° C
(74.1°F)
% 58 86% 2.3 Sunrise:05:30 AM
Sunset: 08:22 PM
Moonrise:02:20 PM
Moonset: 11:22 PM
Moon Phase
( First Quarter )
02 August 2025 Saturday Sunny Sunny 17.1 ° C
(62.7°F)
30.4 ° C
(86.6°F)
23.9 ° C
(75.1°F)
% 35 0% 0 Sunrise:05:32 AM
Sunset: 08:21 PM
Moonrise:03:29 PM
Moonset: 11:49 PM
Moon Phase
( Waxing Gibbous )
03 August 2025 Sunday Sunny Sunny 17.1 ° C
(62.8°F)
28 ° C
(82.4°F)
22.3 ° C
(72.2°F)
% 27 0% 6 Sunrise:05:33 AM
Sunset: 08:19 PM
Moonrise:04:37 PM
Moonset: No moonset
Moon Phase
( Waxing Gibbous )
04 August 2025 Monday Partly Cloudy  Partly Cloudy 16.3 ° C
(61.4°F)
27.2 ° C
(80.9°F)
21.5 ° C
(70.7°F)
% 33 0% 6 Sunrise:05:34 AM
Sunset: 08:18 PM
Moonrise:05:40 PM
Moonset: 12:23 AM
Moon Phase
( Waxing Gibbous )
05 August 2025 Tuesday Sunny Sunny 16 ° C
(60.9°F)
28.2 ° C
(82.8°F)
22 ° C
(71.6°F)
% 39 0% 6 Sunrise:05:35 AM
Sunset: 08:17 PM
Moonrise:06:34 PM
Moonset: 01:09 AM
Moon Phase
( Waxing Gibbous )
06 August 2025 Wednesday Sunny Sunny 17.7 ° C
(63.8°F)
30.3 ° C
(86.6°F)
24.4 ° C
(76°F)
% 36 0% 6 Sunrise:05:37 AM
Sunset: 08:15 PM
Moonrise:07:18 PM
Moonset: 02:06 AM
Moon Phase
( Waxing Gibbous )
07 August 2025 Thursday Sunny Sunny 18.3 ° C
(64.9°F)
28.6 ° C
(83.6°F)
23.4 ° C
(74.1°F)
% 39 0% 6 Sunrise:05:38 AM
Sunset: 08:13 PM
Moonrise:07:53 PM
Moonset: 03:16 AM
Moon Phase
( Waxing Gibbous )
08 August 2025 Friday Sunny Sunny 17 ° C
(62.6°F)
31 ° C
(87.8°F)
23.8 ° C
(74.9°F)
% 32 0% 6 Sunrise:05:39 AM
Sunset: 08:12 PM
Moonrise:08:19 PM
Moonset: 04:31 AM
Moon Phase
( Waxing Gibbous )
09 August 2025 Saturday Sunny Sunny 18.5 ° C
(65.4°F)
34.5 ° C
(94.1°F)
26.9 ° C
(80.4°F)
% 25 0% 7 Sunrise:05:40 AM
Sunset: 08:10 PM
Moonrise:08:41 PM
Moonset: 05:50 AM
Moon Phase
( Full Moon )
10 August 2025 Sunday Sunny Sunny 22.1 ° C
(71.9°F)
37.2 ° C
(98.9°F)
29.6 ° C
(85.3°F)
% 20 0% 7 Sunrise:05:42 AM
Sunset: 08:09 PM
Moonrise:08:59 PM
Moonset: 07:09 AM
Moon Phase
( Waning Gibbous )
11 August 2025 Monday Sunny Sunny 22.5 ° C
(72.5°F)
37.3 ° C
(99.1°F)
30 ° C
(86°F)
% 19 0% 8 Sunrise:05:43 AM
Sunset: 08:07 PM
Moonrise:09:17 PM
Moonset: 08:28 AM
Moon Phase
( Waning Gibbous )
St. John Weather forecasts are usually fully updated every 4 hours.
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