Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Rounds of severe weather to affect Midwest, East. Click for more information. Chevron right
RealFeel® Temps over 110 F as heat dome shifts. See how hot it will get. Chevron right

Lewistown, MT

83°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Lewistown

Montana

83°
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
Lewistown, 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
Sunday, July 26

Day

7/26
93°Hi
RealFeel® 96°
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
RealFeel Shade™ 90°
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
Sunny to partly cloudy and very warm
alerts

Extreme Heat Warning

1:31 PM Friday - 9:00 PM Sunday
alerts

Extreme Heat Watch

12:00 PM Friday - 9:00 PM Sunday

Max UV Index9.0 (Very High)

AccuLumen Brightness Index™9 (Very Bright)

WindW 7 mph

Wind Gusts10 mph

Probability of Precipitation2%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover18%

Morning

Afternoon

Night

7/26
58°Lo
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
Mainly clear
alerts

Extreme Heat Warning

1:31 PM Friday - 9:00 PM Sunday
alerts

Extreme Heat Watch

12:00 PM Friday - 9:00 PM Sunday

WindSSW 7 mph

Wind Gusts8 mph

Probability of Precipitation25%

Probability of Thunderstorms6%

Precipitation0.00 in

Cloud Cover24%

Evening

Overnight

Sun & Moon

15 hrs 08 mins
Rise 5:50 AM
Set 8:58 PM
Waxing Gibbous
Rise 7:43 PM
Set 3:27 AM

Temperature History

7/26
High
Low
Forecast
93°
58°
Average
84°
52°
Last Year
81°
55°
Record
97°
1933
38°
2005

Further Ahead

Hourly

10-Day

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Bertha makes 2 Gulf Coast landfalls, causes flooding and beach erosion

1 day ago

Hurricane

Hurricane Fausto churns in the East Pacific: is Hawaii at risk?

10 hours ago

Severe Weather

Severe storms to target Midwest, East with damaging winds into Tuesday

8 hours ago

Weather Forecasts

Heat dome to build east, bringing hottest air of season to MS Valley

8 hours ago

Weather Forecasts

Wildfire smoke spreads as northwestern US fires multiply

10 hours ago

 More Stories

Featured Stories

Weather News

2 dead after historic flooding swamps West Virginia

1 day ago

Weather News

Flood rescuers work to reunite displaced Texas pets

3 days ago

Weather News

Hot car death near Fort Myers is Florida’s fifth this year

3 days ago

Weather News

5 dead after rescue attempts in fast-moving Ohio river

4 days ago

Weather News

Glimpse what life was like for survivors of the Pompeii disaster

4 days ago
World North America United States Montana Lewistown

Weather Near Lewistown:

  • Billings, MT
  • Great Falls, MT
  • Havre, MT
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

...

...

...