Mount Shasta Weather Forecast
Mount Shasta weather: 23°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Mount Shasta is a mountain in California. Mount Shasta is a mountain known as a volcano in northern California. It sits at 14.180 ft above sea level.
Right now it is 23°F (-5°C) in Mount Shasta with overcast. It feels like 15°F. Today runs from 15°F to 25°F. Chance of precipitation is 23%. Sightseeing conditions score 6.5/10 - fair - plan around the weather.
The best time to visit Mount Shasta is June, July and August. The climate is polar. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 50°F, while February is the coldest with lows near -5°F.
The closest major airport is San Francisco International Airport (SFO), about 262 mi away. Nearby highlights include Lassen Volcanic National Park, Redwood National and State Parks, Crater Lake National Park and Crater Lake.
In plain terms. Today is cooler than average for September. The forecast high of 25°F is 11.9°F below the 37°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. driving is the strongest bet in Mount Shasta today at 8.7/10. Overnight lows near 15°F mean ice is possible on bridges before dawn.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for Mount Shasta
Derived from the forecast. No official alert feed is wired for this country yet.
Weather in Mount Shasta right now
Source: Open-Meteo. Updated 5:45 PM, Sep 16 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Mount Shasta
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Wed, Sep 16 | 🌨️ Snow | 25° / 15° | 23% · 0,0 in | 16 mph | 6 |
| Thu, Sep 17 | 🌨️ Snow | 22° / 14° | 32% · 0,1 in | 12 mph | 6 |
| Fri, Sep 18 | 🌥️ Fog | 38° / 18° | 4% | 12 mph | 6 |
| Sat, Sep 19 | ⛅ Partly cloudy | 47° / 17° | 0% | 5 mph | 6 |
| Sun, Sep 20 | ☁️ Overcast | 47° / 22° | 0% | 4 mph | 6 |
| Mon, Sep 21 | ☁️ Overcast | 48° / 22° | 0% | 8 mph | 6 |
| Tue, Sep 22 | ☁️ Overcast | 46° / 22° | 1% | 7 mph | 6 |
| Wed, Sep 23 | ☁️ Overcast | 46° / 23° | 1% | 10 mph | 6 |
| Thu, Sep 24 | ☁️ Overcast | 43° / 24° | 2% | 13 mph | 6 |
| Fri, Sep 25 | ☁️ Overcast | 41° / 25° | 6% | 16 mph | 6 |
| Sat, Sep 26 | ☁️ Overcast | 39° / 22° | 10% | 13 mph | 4 |
| Sun, Sep 27 | ☁️ Overcast | 35° / 14° | 10% | 14 mph | 6 |
| Mon, Sep 28 | 🌦️ Light drizzle | 29° / 10° | 14% · 0,0 in | 6 mph | 4 |
| Tue, Sep 29 | 🌥️ Fog | 40° / 7° | 12% | 5 mph | 6 |
| Wed, Sep 30 | ☁️ Overcast | 46° / 17° | 11% | 5 mph | 6 |
| Thu, Oct 1 | ☁️ Overcast | 32° / 23° | 6% | 9 mph | 2 |
Climate in Mount Shasta month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 10° | -3° | 9,5 in | ★☆☆☆☆ |
| February | 6° | -5° | 13,4 in | ★☆☆☆☆ |
| March | 11° | -2° | 9,6 in | ★☆☆☆☆ |
| April | 16° | -0° | 4,6 in | ★☆☆☆☆ |
| May | 26° | 6° | 2,1 in | ★★☆☆☆ |
| June | 38° | 16° | 0,6 in | ★★★☆☆ |
| July | 50° | 28° | 0,6 in | ★★★☆☆ |
| August | 46° | 26° | 0,7 in | ★★★☆☆ |
| September | 37° | 19° | 2,0 in | ★★☆☆☆ |
| October | 26° | 10° | 3,0 in | ★★☆☆☆ |
| November | 13° | 0° | 10,4 in | ★☆☆☆☆ |
| December | 11° | -0° | 14,4 in | ★☆☆☆☆ |
Climate type: Polar. Source: Open-Meteo archive (ERA5).
Weather map for Mount Shasta
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Mount Shasta
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Mount Shasta
Go in June, July and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
Explore Mount Shasta
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Mount Shasta?
Mount Shasta is a mountain in California. Its coordinates are 41.4092, -122.1949. It lies in North America.
What is the weather like in Mount Shasta right now?
It is currently 23°F (-5°C) with overcast. Humidity is 74% and wind is 7 mph.
When is the best time to visit Mount Shasta?
June, July and August offer the most comfortable conditions in Mount Shasta, which has a polar climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Mount Shasta in?
Mount Shasta observes America/Los_Angeles (UTC-07:00). The local time is 5:45 PM.
What is the nearest airport to Mount Shasta?
The closest airports are San Francisco International Airport (SFO), 262 mi away and Portland International Airport (PDX), 290 mi away.
What are the top things to do in Mount Shasta?
Popular options include Lassen Volcanic National Park, Redwood National and State Parks, Crater Lake National Park, Crater Lake, Emerald Bay State Park and Smith Rock State Park.
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| Place data | USPOTUS Atlas dataset (mountains) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated September 16, 2026 at 5:45 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
