Mount Shasta Weather Forecast 15 Days, Weather in Mount Shasta Today
Current weather conditions and 15 day weather forecast for Mount Shasta, California, 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 Mount Shasta
| 05 December 2025 Friday 5.3 ° C / 41.5°F  Clear |
Feels Like : 3.2 ° C / 37.8°F Humidity : % 70 Pressure : 1025 mb Wind Speed : 9 kmph / 5.6 miles from NNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Mount Shasta, CA, USA
Weather Forecast for next 15 Days for Mount Shasta 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 Mount Shasta, California 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 December 2025 Friday |  Partly Cloudy |
2.7 ° C (36.9°F) |
11.4 ° C (52.5°F) |
6.3 ° C (43.4°F) |
% 85 | 0% | 0.3 | Sunrise:07:20 AM Sunset: 04:40 PM |
Moonrise:05:15 PM Moonset: 08:35 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday |  Moderate rain |
2.9 ° C (37.3°F) |
9.3 ° C (48.7°F) |
5.5 ° C (41.8°F) |
% 96 | 89% | 0.3 | Sunrise:07:21 AM Sunset: 04:40 PM |
Moonrise:06:28 PM Moonset: 09:39 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday | Partly Cloudy |
1.2 ° C (34.2°F) |
10.7 ° C (51.3°F) |
3.8 ° C (38.9°F) |
% 81 | 0% | 0.3 | Sunrise:07:22 AM Sunset: 04:40 PM |
Moonrise:07:46 PM Moonset: 10:27 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday | Sunny |
1.6 ° C (34.8°F) |
10 ° C (50.1°F) |
4.7 ° C (40.5°F) |
% 72 | 0% | 0.3 | Sunrise:07:23 AM Sunset: 04:40 PM |
Moonrise:09:03 PM Moonset: 11:05 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday |  Patchy rain nearby |
6 ° C (42.7°F) |
7.5 ° C (45.6°F) |
6.7 ° C (44.1°F) |
% 88 | 65% | 0 | Sunrise:07:24 AM Sunset: 04:40 PM |
Moonrise:10:15 PM Moonset: 11:35 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday | Patchy rain nearby |
6.1 ° C (43°F) |
9.8 ° C (49.6°F) |
7.6 ° C (45.8°F) |
% 88 | 0% | 2 | Sunrise:07:25 AM Sunset: 04:40 PM |
Moonrise:11:23 PM Moonset: 11:58 AM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday | Sunny |
3.5 ° C (38.3°F) |
11.1 ° C (52°F) |
6.5 ° C (43.6°F) |
% 74 | 0% | 3 | Sunrise:07:26 AM Sunset: 04:40 PM |
Moonrise:No moonrise Moonset: 12:19 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Sunny |
0.6 ° C (33.1°F) |
10.5 ° C (51°F) |
4.6 ° C (40.3°F) |
% 62 | 0% | 2 | Sunrise:07:26 AM Sunset: 04:40 PM |
Moonrise:12:27 AM Moonset: 12:38 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday | Patchy rain nearby |
-1.5 ° C (29.3°F) |
2.8 ° C (37°F) |
1.4 ° C (34.4°F) |
% 89 | 85% | 1 | Sunrise:07:27 AM Sunset: 04:40 PM |
Moonrise:01:29 AM Moonset: 12:58 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday |  Mist |
-2.3 ° C (27.9°F) |
0.5 ° C (32.8°F) |
-0.2 ° C (31.7°F) |
% 95 | 69% | 1 | Sunrise:07:28 AM Sunset: 04:40 PM |
Moonrise:02:31 AM Moonset: 01:19 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday |  Light sleet |
-0.2 ° C (31.6°F) |
2.5 ° C (36.5°F) |
0.6 ° C (33.1°F) |
% 99 | 85% | 1 | Sunrise:07:29 AM Sunset: 04:41 PM |
Moonrise:03:33 AM Moonset: 01:42 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Light drizzle |
-1.1 ° C (30.1°F) |
0.3 ° C (32.6°F) |
-0.2 ° C (31.7°F) |
% 98 | 68% | 1 | Sunrise:07:29 AM Sunset: 04:41 PM |
Moonrise:04:36 AM Moonset: 02:08 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Heavy snow |
-1.8 ° C (28.7°F) |
1.6 ° C (34.9°F) |
0.7 ° C (33.3°F) |
% 98 | 87% | 1 | Sunrise:07:30 AM Sunset: 04:41 PM |
Moonrise:05:40 AM Moonset: 02:41 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Heavy snow |
-1.4 ° C (29.5°F) |
-0.5 ° C (31.1°F) |
-0.4 ° C (31.2°F) |
% 100 | 73% | 1 | Sunrise:07:30 AM Sunset: 04:42 PM |
Moonrise:06:41 AM Moonset: 03:21 PM Moon Phase ( Waning Crescent ) |
|
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