St. John Weather Forecast 15 Days, Weather in St. John Today
Current weather conditions and 15 day weather forecast for St. John, Kansas, 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
| 21 August 2026 Friday 33.3 ° C / 91.9°F  Sunny |
Feels Like : 32 ° C / 89.6°F Humidity : % 34 Pressure : 1011 mb Wind Speed : 16.2 kmph / 10.1 miles from ESE  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for St. John, KS, 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, Kansas state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 20 August 2026 Thursday | Sunny |
20.2 ° C (68.4°F) |
37.3 ° C (99.1°F) |
28.7 ° C (83.7°F) |
% 57 | 3% | 8.8 | Sunrise:06:54 AM Sunset: 08:22 PM |
Moonrise:03:41 PM Moonset: 12:05 AM Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Sunny |
23.5 ° C (74.4°F) |
37.2 ° C (98.9°F) |
30.3 ° C (86.5°F) |
% 39 | 17% | 9.1 | Sunrise:06:55 AM Sunset: 08:20 PM |
Moonrise:04:39 PM Moonset: 12:49 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday | Sunny |
24.6 ° C (76.3°F) |
39.3 ° C (102.7°F) |
32.5 ° C (90.6°F) |
% 31 | 3% | 9.2 | Sunrise:06:56 AM Sunset: 08:19 PM |
Moonrise:05:29 PM Moonset: 01:39 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday |  Overcast |
23 ° C (73.4°F) |
39.5 ° C (103°F) |
30.4 ° C (86.8°F) |
% 40 | 17% | 7.7 | Sunrise:06:57 AM Sunset: 08:18 PM |
Moonrise:06:12 PM Moonset: 02:35 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 August 2026 Monday | Overcast |
19.1 ° C (66.3°F) |
40.3 ° C (104.6°F) |
30.6 ° C (87.1°F) |
% 43 | 6% | 10 | Sunrise:06:58 AM Sunset: 08:16 PM |
Moonrise:06:48 PM Moonset: 03:35 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 August 2026 Tuesday | Sunny |
20.4 ° C (68.7°F) |
35.4 ° C (95.6°F) |
29.6 ° C (85.2°F) |
% 51 | 57% | 9 | Sunrise:06:58 AM Sunset: 08:15 PM |
Moonrise:07:18 PM Moonset: 04:36 AM Moon Phase ( Full Moon ) |
|
| 26 August 2026 Wednesday | Sunny |
20 ° C (68°F) |
32.7 ° C (90.9°F) |
27.2 ° C (80.9°F) |
% 59 | 68% | 8 | Sunrise:06:59 AM Sunset: 08:13 PM |
Moonrise:07:44 PM Moonset: 05:37 AM Moon Phase ( Full Moon ) |
|
| 27 August 2026 Thursday | Sunny |
25 ° C (77°F) |
34.7 ° C (94.5°F) |
29.5 ° C (85.2°F) |
% 46 | 36% | 8 | Sunrise:07:00 AM Sunset: 08:12 PM |
Moonrise:08:07 PM Moonset: 06:37 AM Moon Phase ( Full Moon ) |
|
| 28 August 2026 Friday | Sunny |
25.9 ° C (78.6°F) |
36.9 ° C (98.5°F) |
30.6 ° C (87.1°F) |
% 34 | 57% | 9 | Sunrise:07:01 AM Sunset: 08:10 PM |
Moonrise:08:29 PM Moonset: 07:36 AM Moon Phase ( Full Moon ) |
|
| 29 August 2026 Saturday | Sunny |
26.8 ° C (80.3°F) |
40.3 ° C (104.5°F) |
33.2 ° C (91.8°F) |
% 35 | 57% | 10 | Sunrise:07:02 AM Sunset: 08:09 PM |
Moonrise:08:50 PM Moonset: 08:35 AM Moon Phase ( Waning Gibbous ) |
|
| 30 August 2026 Sunday | Sunny |
30.9 ° C (87.6°F) |
42 ° C (107.7°F) |
36.3 ° C (97.3°F) |
% 21 | 2% | 10 | Sunrise:07:03 AM Sunset: 08:08 PM |
Moonrise:09:13 PM Moonset: 09:35 AM Moon Phase ( Waning Gibbous ) |
|
| 31 August 2026 Monday |  Partly Cloudy |
29.9 ° C (85.8°F) |
42.8 ° C (109.1°F) |
36.5 ° C (97.7°F) |
% 20 | 57% | 10 | Sunrise:07:04 AM Sunset: 08:06 PM |
Moonrise:09:37 PM Moonset: 10:37 AM Moon Phase ( Waning Gibbous ) |
|
| 01 September 2026 Tuesday | Sunny |
27.5 ° C (81.5°F) |
38.7 ° C (101.7°F) |
33.4 ° C (92.1°F) |
% 32 | 36% | 9 | Sunrise:07:05 AM Sunset: 08:05 PM |
Moonrise:10:05 PM Moonset: 11:41 AM Moon Phase ( Waning Gibbous ) |
|
| 02 September 2026 Wednesday | Sunny |
28 ° C (82.4°F) |
38.6 ° C (101.6°F) |
32.7 ° C (90.9°F) |
% 38 | 36% | 9 | Sunrise:07:05 AM Sunset: 08:03 PM |
Moonrise:10:39 PM Moonset: 12:47 PM Moon Phase ( Last Quarter ) |
|
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