Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Edouard moves across Texas, bringing heavy rain. Click for the latest. Chevron right

Mount Shasta, CA

50°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Mount Shasta

California

50°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Mount Shasta, CA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

September

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
30
84°
42°
31
82°
44°
1
67°
47°
2
A couple of afternoon showers
54°
48°
3
Cold with a couple of showers
55°
40°
4
A shower
65°
40°
5
Lots of sun, a shower; cool
68°
43°
6
A touch of afternoon rain
68°
44°
7
Partly sunny and cool
70°
45°
8
Times of clouds and sun
77°
46°
9
Sunny to partly cloudy
80°
48°
10
Periods of sun
82°
49°
11
Partly sunny
76°
48°
12
Partly sunny
75°
47°
13
Partly sunny
77°
45°
14
Plenty of sun
79°
46°
15
Warmer with plenty of sun
89°
48°
16
Partly sunny
75°
44°
17
Plenty of sunshine
73°
43°
18
Sunny
71°
40°
19
Partly sunny
71°
41°
20
Sunshine
73°
46°
21
Mostly sunny
77°
47°
22
Increasing clouds
78°
48°
23
Mostly cloudy
72°
45°
24
Plenty of sun
69°
39°
25
Plenty of sun
69°
41°
26
Plenty of sunshine
75°
44°
27
Warm with plenty of sunshine
77°
46°
28
Mostly sunny and warm
78°
47°
29
Warm with plenty of sunshine
77°
47°
30
Sunny and seasonably warm
76°
46°
1
Warm with plenty of sunshine
77°
47°
2
Mostly sunny and warm
77°
47°
3
Sunshine and remaining warm
75°
46°

Temperature Graph

°F
90° 78° 66° 54° 42° Sep
Today 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

September Weather in Mount Shasta

Mount Shasta's September 2026 forecast shows daily high temperatures ranging from 54° to 89°, with overnight lows between 39° and 49°. The average high for September is 74° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Mount Shasta. See also: October | November | December.

Further Ahead

October 2026

November 2026

December 2026

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Edouard brings flooding, power outages to Texas after making landfall

10 hours ago

Hurricane

Edouard moves inland across Texas, spreading flooding rain

3 hours ago

Weather Forecasts

Labor Day weekend: Showers, storms to surround central U.S. heat dome

3 hours ago

Astronomy

September nights bring planets, longer nights and the Harvest Moon

23 hours ago

Hurricane

Tropical moisture near Florida could raise storm threat by Labor Day

3 hours ago

More Stories

Featured Stories

Weather News

2 dead, 1 missing after Grand Canyon flash flood

10 hours ago

Travel

One of America’s famous landmarks is going dark to help migrating bird...

21 hours ago

Recreation

Missing canoeists found dead in California’s Tomales Bay

17 hours ago

Recreation

Wolf activity prompts tent camping ban at Isle Royale National Park

1 day ago

Weather News

Officer dies while helping residents evacuate Oklahoma wildfire

1 day ago

World North America United States California Mount Shasta

Weather Near Mount Shasta:

  • Grants Pass, OR
  • Klamath Falls, OR
  • Medford, OR
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...