Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Newsletters
  • Advertising
  • Superior Accuracy™
Sweltering 90-100 F heat to expand, affect 170 million in central and eastern US. Details here Chevron right
Severe storms sweep Northeast, teen struck by lightning in Central Park. Read more Chevron right

Jefferson, IA

85°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Jefferson

Iowa

85°
No results found.
Try searching for a city, zip code or point of interest.
settings
Jefferson, IA 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

Newsletters

Advertising

Superior Accuracy™

Video

Winter Center
Today

Hourly

 Daily Radar MinuteCast Monthly Air Quality Health & Activities

3 PM

93°
RealFeel® 100°
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 6%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Friday - 9:00 PM Sunday

RealFeel Shade™95°

WindSSW 20 mph

Air QualityFair

Max UV Index7 (High)

Wind Gusts33 mph

Humidity52%

Indoor Humidity52% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

97°
RealFeel® 102°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 6%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Friday - 9:00 PM Sunday

RealFeel Shade™98°

WindSSW 20 mph

Air QualityFair

Max UV Index5 (Moderate)

Wind Gusts35 mph

Humidity46%

Indoor Humidity46% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

96°
RealFeel® 99°
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 6%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Friday - 9:00 PM Sunday

RealFeel Shade™97°

WindSSW 20 mph

Air QualityFair

Max UV Index3 (Moderate)

Wind Gusts36 mph

Humidity46%

Indoor Humidity46% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

93°
RealFeel® 95°
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 6%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Friday - 9:00 PM Sunday

RealFeel Shade™94°

WindSSW 20 mph

Air QualityFair

Max UV Index2 (Low)

Wind Gusts37 mph

Humidity48%

Indoor Humidity48% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

91°
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 4%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Friday - 9:00 PM Sunday

RealFeel Shade™91°

WindSSW 20 mph

Air QualityFair

Max UV Index1 (Low)

Wind Gusts37 mph

Humidity50%

Indoor Humidity50% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

93°
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
Sunny
alerts

Extreme Heat Warning

12:00 PM Friday - 9:00 PM Sunday

RealFeel Shade™92°

WindSSW 20 mph

Air QualityFair

Max UV Index0 (Low)

Wind Gusts31 mph

Humidity46%

Indoor Humidity46% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

90°
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
Clear
alerts

Extreme Heat Warning

12:00 PM Friday - 9:00 PM Sunday

WindSSW 18 mph

Air QualityFair

Wind Gusts32 mph

Humidity51%

Indoor Humidity51% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

87°
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
Clear
alerts

Extreme Heat Warning

12:00 PM Friday - 9:00 PM Sunday

WindSSW 17 mph

Air QualityFair

Wind Gusts33 mph

Humidity56%

Indoor Humidity56% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

84°
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
Clear
alerts

Extreme Heat Warning

12:00 PM Friday - 9:00 PM Sunday

WindSSW 17 mph

Air QualityFair

Wind Gusts33 mph

Humidity61%

Indoor Humidity61% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

Further Ahead

Tomorrow

Sunday

Daily

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Sweltering 90-100 F heat to expand, affect 170 million in US

1 hour ago

Severe Weather

Storms sweep Northeast, teen struck by lightning in Central Park

7 hours ago

Severe Weather

‘Ring of fire’ storms to erupt on rim of building heat dome in US

2 hours ago

Astronomy

Meteorological summer vs. astronomical summer explained

4 days ago

Astronomy

NASA raises chance for asteroid to hit moon

8 hours ago

 More Stories

Featured Stories

Astronomy

Summer solstice: Everything to know about the year's longest day

8 hours ago

Health

‘Nimbus’ COVID-19 variant arrives in U.S. after China surge

9 hours ago

Severe Weather

Rare high-elevation tornado confirmed at Pikes Peak

1 day ago

Weather News

First methane-powered sea spiders found crawling on the ocean floor

2 days ago

Weather News

‘Dragon Man’ DNA revelation puts a face to group of ancient humans

5 hours ago
World North America United States Iowa Jefferson

Weather Near Jefferson:

  • Ames, IA
  • Des Moines, IA
  • West Des Moines, IA
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

...

...

...