Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Tropical threat is emerging just as the Atlantic hurricane season begins. Get the details. Chevron right
Flood in a drought: Heavy rain to drench southern US into the weekend. See the forecast. Chevron right

Sidney, MT

93°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Sidney

Montana

93°
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

1 PM

92°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Red Flag Warning

12:00 PM Wednesday - 10:00 PM Wednesday
alerts

Heat Advisory

12:00 PM Wednesday - 10:00 PM Thursday

RealFeel Shade™88°

Heat Index89°

WindSSE 23 mph

Air QualityPoor

Max UV Index8.7 (Very High)

Wind Gusts36 mph

Humidity18%

Indoor Humidity18% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover17%

Visibility10 mi

Cloud Ceiling34000 ft

2 PM

94°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Red Flag Warning

12:00 PM Wednesday - 10:00 PM Wednesday
alerts

Heat Advisory

12:00 PM Wednesday - 10:00 PM Thursday

RealFeel Shade™89°

Heat Index90°

WindSSE 23 mph

Air QualityPoor

Max UV Index8.0 (Very High)

Wind Gusts38 mph

Humidity19%

Indoor Humidity19% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

95°
RealFeel® 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Red Flag Warning

12:00 PM Wednesday - 10:00 PM Wednesday
alerts

Heat Advisory

12:00 PM Wednesday - 10:00 PM Thursday

RealFeel Shade™90°

Heat Index90°

WindSSE 23 mph

Air QualityPoor

Max UV Index6.3 (High)

Wind Gusts39 mph

Humidity17%

Indoor Humidity17% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

95°
RealFeel® 94°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Red Flag Warning

12:00 PM Wednesday - 10:00 PM Wednesday
alerts

Heat Advisory

12:00 PM Wednesday - 10:00 PM Thursday

RealFeel Shade™91°

Heat Index91°

WindSSE 23 mph

Air QualityPoor

Max UV Index4.6 (Moderate)

Wind Gusts38 mph

Humidity16%

Indoor Humidity16% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

94°
RealFeel® 92°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Red Flag Warning

12:00 PM Wednesday - 10:00 PM Wednesday
alerts

Heat Advisory

12:00 PM Wednesday - 10:00 PM Thursday

RealFeel Shade™89°

Heat Index90°

WindSSE 22 mph

Air QualityPoor

Max UV Index3.3 (Moderate)

Wind Gusts36 mph

Humidity17%

Indoor Humidity17% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

92°
RealFeel® 89°
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 0%
Chevron down
Mostly sunny
alerts

Red Flag Warning

12:00 PM Wednesday - 10:00 PM Wednesday
alerts

Heat Advisory

12:00 PM Wednesday - 10:00 PM Thursday

RealFeel Shade™87°

Heat Index88°

WindSSE 21 mph

Air QualityPoor

Max UV Index2.2 (Low)

Wind Gusts32 mph

Humidity19%

Indoor Humidity19% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

90°
RealFeel® 86°
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 0%
Chevron down
Mostly sunny
alerts

Red Flag Warning

12:00 PM Wednesday - 10:00 PM Wednesday
alerts

Heat Advisory

12:00 PM Wednesday - 10:00 PM Thursday

RealFeel Shade™85°

Heat Index86°

WindSSE 18 mph

Air QualityPoor

Max UV Index1.4 (Low)

Wind Gusts27 mph

Humidity21%

Indoor Humidity21% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

88°
RealFeel® 84°
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 0%
Chevron down
Mostly sunny
alerts

Red Flag Warning

12:00 PM Wednesday - 10:00 PM Wednesday
alerts

Heat Advisory

12:00 PM Wednesday - 10:00 PM Thursday

RealFeel Shade™84°

Heat Index85°

WindSSE 16 mph

Air QualityPoor

Max UV Index0.5 (Low)

Wind Gusts21 mph

Humidity24%

Indoor Humidity24% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

84°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Red Flag Warning

12:00 PM Wednesday - 10:00 PM Wednesday
alerts

Heat Advisory

12:00 PM Wednesday - 10:00 PM Thursday

Heat Index82°

WindSSE 14 mph

Air QualityPoor

Wind Gusts16 mph

Humidity27%

Indoor Humidity27% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

81°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Heat Advisory

12:00 PM Wednesday - 10:00 PM Thursday

Heat Index80°

WindSSE 14 mph

Air QualityPoor

Wind Gusts15 mph

Humidity30%

Indoor Humidity30% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

78°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear
alerts

Heat Advisory

12:00 PM Wednesday - 10:00 PM Thursday

WindSSE 13 mph

Air QualityPoor

Wind Gusts14 mph

Humidity34%

Indoor Humidity34% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

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 92° with a RealFeel® of 93°, mostly sunny with a 0% 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

Friday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Summerlike midweek surge in Northeast to be chased by more chill

22 minutes ago

Severe Weather

Woman dies after vehicle is swept away in Mississippi flash flooding

1 day ago

Weather Forecasts

Downpours bring heightened flood risk, drought relieve to southern US

2 hours ago

Hurricane

Tropical threat emerging from central Gulf to Florida waters

26 minutes ago

Weather News

Europe’s deadly, early heatwave is smashing records

4 hours ago

 More Stories

Featured Stories

Recreation

Spring snow closes Tioga Road into Yosemite National Park

3 hours ago

Weather News

2 humpback whales traveled over 9,000 miles between Australia and Braz...

1 day ago

Astronomy

What happened when an astronaut suddenly couldn’t speak in space

5 hours ago

Health

Tick bite ER visits are climbing as peak season approaches

3 hours ago

Climate

What is the Great Pacific Garbage Patch?

1 day 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

...

...

...