Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Arctic cold to be reinforced in northern U.S.; A reality check farther south. Click for details. Chevron right
Bomb cyclone to bring blizzard conditions, icy travel, strong winds. See the forecast. Chevron right

Alton, CA

48°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Alton

California

48°
No results found.
Try searching for a city, zip code or point of interest.
settings
Alton, CA Weather
Today WinterCast Local {stormName} Tracker Hourly Daily 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

 Daily Radar MinuteCast® Monthly Air Quality Health & Activities

4 PM

47°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 7%
Chevron down
Mostly sunny

RealFeel Shade™43°

WindNNW 9 mph

Air QualityExcellent

Max UV Index0.4 (Low)

Wind Gusts22 mph

Humidity74%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover21%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

46°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 7%
Chevron down
Mostly clear

WindNNW 7 mph

Air QualityFair

Wind Gusts18 mph

Humidity77%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover16%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

45°
RealFeel® 42°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 5%
Chevron down
Mostly clear

WindN 6 mph

Air QualityFair

Wind Gusts15 mph

Humidity81%

Indoor Humidity35% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover11%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

44°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindN 6 mph

Air QualityFair

Wind Gusts13 mph

Humidity83%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

42°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy

WindN 5 mph

Air QualityFair

Wind Gusts9 mph

Humidity86%

Indoor Humidity34% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover31%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

41°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy

WindN 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity87%

Indoor Humidity33% (Slightly Dry)

Dew Point38° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

38°
RealFeel® 38°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy

WindNNE 4 mph

Air QualityFair

Wind Gusts5 mph

Humidity95%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

41°
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy

WindNE 5 mph

Air QualityFair

Wind Gusts5 mph

Humidity86%

Indoor Humidity32% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

Further Ahead

Tomorrow

Monday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Bomb storm to bring blizzard conditions, ice to Great Lakes, Northeast

2 hours ago

Weather News

Flight cancellations pile up as snowstorm jams post-Christmas travel

7 hours ago

Winter Weather

Arctic cold to surge in waves behind Monday's bomb cyclone

2 hours ago

Weather News

Top 10 weather events of 2025 that smashed records

1 day ago

Weather Forecasts

New Year's forecast: Snow for Great Lakes, Northeast; Drier in Cali

2 hours ago

 More Stories

Featured Stories

Health

CDC links raw oysters to 64 salmonella cases in 22 states

1 day ago

Recreation

Hiker’s body recovered from California's tallest mountain after storms

3 days ago

Astronomy

The upsidedown moon: Why the moon looks odd on the other side of the w...

1 day ago

Health

Traveler might have exposed many to measles in Massachusetts

2 days ago

Recreation

Big Bend National Park asks visitors to stop treating it like a ‘trash...

3 days ago
World North America United States California Alton

Weather Near Alton:

  • Arcata, CA
  • Eureka, CA
  • McKinleyville, CA
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ 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 RealFeel® and RealFeel Shade™ 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
© 2025 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

...

...

...