Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Large earthquake felt in Florida, Cuba and Mexico. Tap for details. Chevron right
Boris makes landfall as Tropical Storm Cristina nears Central America. Click for details. Chevron right

Sidney, MT

57°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Sidney

Montana

57°
No results found.
Try searching for a city, zip code or point of interest.
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
Sidney, MT 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

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

6 AM

58°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 45%
Chevron down
Showers

RealFeel Shade™56°

WindESE 6 mph

Air QualityExcellent

Max UV Index0.2 (Low)

Wind Gusts6 mph

Humidity73%

Indoor Humidity51% (Ideal Humidity)

Dew Point49° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling6000 ft

7 AM

60°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 40%
Chevron down
Cloudy

RealFeel Shade™56°

WindESE 10 mph

Air QualityExcellent

Max UV Index0.6 (Low)

Wind Gusts12 mph

Humidity73%

Indoor Humidity55% (Ideal Humidity)

Dew Point51° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling20000 ft

8 AM

64°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Mostly cloudy

RealFeel Shade™60°

WindSE 14 mph

Air QualityExcellent

Max UV Index1.2 (Low)

Wind Gusts16 mph

Humidity76%

Indoor Humidity66% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover87%

Visibility10 mi

Cloud Ceiling19200 ft

9 AM

68°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™64°

WindSSE 15 mph

Air QualityExcellent

Max UV Index1.4 (Low)

Wind Gusts17 mph

Humidity74%

Indoor Humidity74% (Slightly Humid)

Dew Point60° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling18800 ft

10 AM

73°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™69°

WindSSE 15 mph

Air QualityExcellent

Max UV Index1.9 (Low)

Wind Gusts18 mph

Humidity67%

Indoor Humidity67% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling20600 ft

11 AM

76°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™73°

WindS 15 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts18 mph

Humidity60%

Indoor Humidity60% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling22400 ft

12 PM

79°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™76°

Heat Index80°

WindS 15 mph

Air QualityFair

Max UV Index4.5 (Moderate)

Wind Gusts20 mph

Humidity55%

Indoor Humidity55% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling24200 ft

1 PM

81°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 18%
Chevron down
Mostly cloudy

RealFeel Shade™77°

Heat Index82°

WindSSW 14 mph

Air QualityFair

Max UV Index5.2 (Moderate)

Wind Gusts17 mph

Humidity50%

Indoor Humidity50% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling26100 ft

2 PM

82°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 14%
Chevron down
Mostly cloudy

RealFeel Shade™79°

Heat Index82°

WindSW 13 mph

Air QualityFair

Max UV Index5.0 (Moderate)

Wind Gusts15 mph

Humidity45%

Indoor Humidity45% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover89%

Visibility10 mi

Cloud Ceiling28100 ft

3 PM

81°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 14%
Chevron down
Cloudy

RealFeel Shade™78°

Heat Index81°

WindWSW 12 mph

Air QualityFair

Max UV Index4.0 (Moderate)

Wind Gusts18 mph

Humidity44%

Indoor Humidity44% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

81°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 18%
Chevron down
Mostly cloudy

RealFeel Shade™77°

Heat Index81°

WindW 14 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts20 mph

Humidity43%

Indoor Humidity43% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover86%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

77°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms

RealFeel Shade™70°

WindW 17 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts21 mph

Humidity62%

Indoor Humidity62% (Humid)

Dew Point63° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover78%

Rain0.21 in

Visibility3 mi

Cloud Ceiling2000 ft

6 PM

75°
RealFeel® 73°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Intermittent clouds

RealFeel Shade™71°

WindW 20 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts24 mph

Humidity61%

Indoor Humidity61% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

73°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 29%
Chevron down
Partly sunny

RealFeel Shade™69°

WindW 17 mph

Air QualityFair

Max UV Index1.5 (Low)

Wind Gusts21 mph

Humidity56%

Indoor Humidity56% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

71°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny

RealFeel Shade™68°

WindW 14 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts21 mph

Humidity50%

Indoor Humidity50% (Ideal Humidity)

Dew Point52° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover29%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

68°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindW 10 mph

Air QualityFair

Wind Gusts21 mph

Humidity53%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

65°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy

WindW 10 mph

Air QualityFair

Wind Gusts16 mph

Humidity58%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover37%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

62°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 0%
Chevron down
Partly cloudy

WindW 10 mph

Air QualityExcellent

Wind Gusts14 mph

Humidity64%

Indoor Humidity52% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Sidney

AccuWeather's hourly forecast for Sidney provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 58° with a RealFeel® of 56°, showers with a 45% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

Further Ahead

Tomorrow

Thursday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Boris makes landfall in Mexico; Tropical Storm Cristina may head in

51 minutes ago

Weather News

Florida rattled by 6.1 earthquake near Cuba; no significant tsunami th...

16 hours ago

Weather Forecasts

Heat, humidity to spur summery conditions, storms in eastern U.S.

1 hour ago

Astronomy

Venus, Jupiter to shine incredibly close for 2 nights this week

23 hours ago

Severe Weather

Active stretch of severe weather to unfold across the Plains, Midwest

55 minutes ago

More Stories

Featured Stories

Health

Why Google wants to release 32 million mosquitoes in 2 states

3 days ago

Weather News

These trees can 'hold their breath' when volcanoes erupt in Hawaii

3 days ago

Astronomy

Sunset after 9pm: Why the sun, clock don't align around the solstice

3 days ago

Weather News

Record sargassum seaweed swamps Caribbean, U.S. beaches

5 days ago

Weather News

Fossil reveals creature that hunted birds 120 million years ago

3 days ago

World North America United States Montana Sidney

Weather Near Sidney:

  • Bismarck, ND
  • Mandan, ND
  • Minot, ND
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

...

...

...