St Clair County International Airport Weather Forecast 15 Days, Weather in PHN Today
Current weather conditions and 15 day weather forecast for St Clair County International Airport, Michigan, 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 Clair County International Airport
| 17 May 2026 Sunday 18.2 ° C / 64.8°F  Partly cloudy |
Feels Like : 18.2 ° C / 64.8°F Humidity : % 73 Pressure : 1010 mb Wind Speed : 23.8 kmph / 14.8 miles from WSW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
15 day weather forecast for St Clair County International Airport, MI, USA
Weather Forecast for next 15 Days for St Clair County International Airport 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 Clair County International Airport, Michigan 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 16 May 2026 Saturday |  Patchy rain nearby |
10.7 ° C (51.3°F) |
30 ° C (86°F) |
19.7 ° C (67.4°F) |
% 56 | 85% | 6.9 | Sunrise:06:06 AM Sunset: 08:48 PM |
Moonrise:05:27 AM Moonset: 09:16 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday |  Moderate rain |
12.3 ° C (54.2°F) |
19 ° C (66.1°F) |
14.7 ° C (58.4°F) |
% 83 | 89% | 7.8 | Sunrise:06:05 AM Sunset: 08:49 PM |
Moonrise:06:10 AM Moonset: 10:36 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Patchy rain nearby |
16.3 ° C (61.3°F) |
27.4 ° C (81.2°F) |
21.1 ° C (69.9°F) |
% 79 | 86% | 8.4 | Sunrise:06:04 AM Sunset: 08:50 PM |
Moonrise:07:06 AM Moonset: 11:46 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Moderate rain |
17.7 ° C (63.9°F) |
27.6 ° C (81.6°F) |
22 ° C (71.6°F) |
% 82 | 87% | 8.3 | Sunrise:06:03 AM Sunset: 08:51 PM |
Moonrise:08:15 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Moderate rain |
6 ° C (42.8°F) |
11.4 ° C (52.5°F) |
10.5 ° C (50.9°F) |
% 85 | 88% | 0.1 | Sunrise:06:02 AM Sunset: 08:52 PM |
Moonrise:09:33 AM Moonset: 12:40 AM Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday |  Sunny |
5.7 ° C (42.3°F) |
12.1 ° C (53.8°F) |
7.9 ° C (46.3°F) |
% 75 | 0% | 3 | Sunrise:06:01 AM Sunset: 08:53 PM |
Moonrise:10:52 AM Moonset: 01:22 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Patchy rain nearby |
6.9 ° C (44.5°F) |
13.8 ° C (56.9°F) |
9.2 ° C (48.5°F) |
% 77 | 73% | 2 | Sunrise:06:01 AM Sunset: 08:54 PM |
Moonrise:12:08 PM Moonset: 01:54 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Patchy rain nearby |
7.4 ° C (45.3°F) |
12.5 ° C (54.4°F) |
9.5 ° C (49.1°F) |
% 89 | 89% | 2 | Sunrise:06:00 AM Sunset: 08:55 PM |
Moonrise:01:21 PM Moonset: 02:19 AM Moon Phase ( First Quarter ) |
|
| 24 May 2026 Sunday |  Cloudy |
5.5 ° C (41.8°F) |
16.3 ° C (61.4°F) |
11.1 ° C (52°F) |
% 78 | 0% | 3 | Sunrise:05:59 AM Sunset: 08:56 PM |
Moonrise:02:29 PM Moonset: 02:40 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 May 2026 Monday | Partly Cloudy |
9.5 ° C (49.1°F) |
20.5 ° C (68.9°F) |
14.3 ° C (57.8°F) |
% 81 | 0% | 4 | Sunrise:05:58 AM Sunset: 08:56 PM |
Moonrise:03:35 PM Moonset: 03:00 AM Moon Phase ( Waxing Gibbous ) |
|
| 26 May 2026 Tuesday | Partly Cloudy |
8.8 ° C (47.9°F) |
25.9 ° C (78.7°F) |
14.1 ° C (57.4°F) |
% 78 | 0% | 4 | Sunrise:05:58 AM Sunset: 08:57 PM |
Moonrise:04:40 PM Moonset: 03:19 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 May 2026 Wednesday | Sunny |
10.2 ° C (50.3°F) |
21.4 ° C (70.6°F) |
15.3 ° C (59.5°F) |
% 66 | 0% | 5 | Sunrise:05:57 AM Sunset: 08:58 PM |
Moonrise:05:45 PM Moonset: 03:39 AM Moon Phase ( Waxing Gibbous ) |
|
| 28 May 2026 Thursday | Patchy rain nearby |
12.8 ° C (55°F) |
17.3 ° C (63.1°F) |
14.7 ° C (58.5°F) |
% 81 | 81% | 3 | Sunrise:05:56 AM Sunset: 08:59 PM |
Moonrise:06:50 PM Moonset: 04:00 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 May 2026 Friday | Patchy rain nearby |
11.8 ° C (53.3°F) |
17.5 ° C (63.5°F) |
13.8 ° C (56.9°F) |
% 78 | 0% | 3 | Sunrise:05:56 AM Sunset: 09:00 PM |
Moonrise:07:56 PM Moonset: 04:25 AM Moon Phase ( Waxing Gibbous ) |
|
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