For Business
|
Warnings
Data Suite
Forensics
Advertising
Superior Accuracy™

A Southwest heat wave is coming. Find out who could see triple-digit temperatures.

El Niño to fuel Pacific hurricanes, increase risks to California, Hawaii. Get the details.

Sidney, MT

Location

Location News Videos

Use Current Location

Recent

Sidney

Montana

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.

Have an account already? Log In

settings

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

Hourly

10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

4 PM

65°

RealFeel® 62°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

51%

Showers

RealFeel Shade™60°

WindNNW 10 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts17 mph

Humidity17%

Indoor Humidity29% (Very Dry)

Dew Point18° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling10000 ft

5 PM

64°

RealFeel® 63°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

27%

Intermittent clouds

RealFeel Shade™60°

WindNNW 10 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts18 mph

Humidity19%

Indoor Humidity31% (Dry)

Dew Point20° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover66%

Visibility10 mi

Cloud Ceiling20000 ft

6 PM

62°

RealFeel® 62°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

22%

Partly sunny

RealFeel Shade™59°

WindNNW 10 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts18 mph

Humidity22%

Indoor Humidity33% (Dry)

Dew Point23° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover42%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

60°

RealFeel® 58°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

15%

Partly sunny

RealFeel Shade™57°

WindNNW 9 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts14 mph

Humidity26%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

56°

RealFeel® 53°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

2%

Cloudy

RealFeel Shade™53°

WindNE 8 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts10 mph

Humidity30%

Indoor Humidity34% (Dry)

Dew Point25° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling13000 ft

9 PM

52°

RealFeel® 49°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

2%

Cloudy

WindE 7 mph

Air QualityFair

Wind Gusts7 mph

Humidity37%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling14700 ft

10 PM

48°

RealFeel® 45°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

2%

Intermittent clouds

WindESE 7 mph

Air QualityFair

Wind Gusts7 mph

Humidity43%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover71%

Visibility10 mi

Cloud Ceiling19800 ft

11 PM

44°

RealFeel® 40°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

2%

Partly cloudy

WindSE 7 mph

Air QualityFair

Wind Gusts7 mph

Humidity50%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover46%

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 65° with a RealFeel® of 62°, showers with a 51% 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

Saturday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

17 injured, 300 homes damaged after tornado outbreak in Mississippi

2 hours ago

Severe Weather

Severe storms to persist through Mother’s Day weekend

45 minutes ago

Severe Weather

How one of the internet's most famous weather videos was captured

1 day ago

Hurricane

El Nino to fuel Pacific hurricane season, raise risks for California

1 day ago

Weather Forecasts

From 80s to frost: Temperature rollercoaster in Northeast, Midwest

1 hour ago

Featured Stories

Weather News

Meet the first bald eagle born in Chicago in over 100 years

7 hours ago

Severe Weather

This state leads the nation for tornado reports in 2026

3 days ago

Recreation

Bear attack injures 2 hikers in Yellowstone National Park

2 days ago

Weather News

Smoke, flames fill Arizona sky as Hazen Fire burns near Phoenix

1 day ago

Weather News

Tow truck driver goes viral after rescuing moose stuck in ice

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

...

...

...