For Business
|
Warnings
Data Suite
Forensics
Advertising
Superior Accuracy™

LIVE: Gulf Coast bracing for Hurricane Isaias. See the latest reports.

Hurricane Isaias strengthens to a Category 3. Click for the track map.

DeKalb, IL

Location

Location News Videos

Use Current Location

Recent

DeKalb

Illinois

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

DeKalb, IL 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

67°

RealFeel® 67°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

43%

Mostly cloudy

RealFeel Shade™64°

WindSE 9 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts15 mph

Humidity75%

Indoor Humidity74% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover79%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

68°

RealFeel® 67°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

34%

Mostly cloudy

RealFeel Shade™65°

WindESE 9 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts15 mph

Humidity70%

Indoor Humidity70% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

66°

RealFeel® 63°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

34%

Mostly cloudy

RealFeel Shade™63°

WindESE 9 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts15 mph

Humidity72%

Indoor Humidity67% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

64°

RealFeel® 61°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

22%

Mostly cloudy

WindESE 9 mph

Air QualityFair

Wind Gusts15 mph

Humidity74%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

62°

RealFeel® 58°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

0%

Mostly clear

WindESE 9 mph

Air QualityFair

Wind Gusts15 mph

Humidity78%

Indoor Humidity62% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

60°

RealFeel® 56°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

0%

Mostly clear

WindSE 9 mph

Air QualityFair

Wind Gusts16 mph

Humidity81%

Indoor Humidity61% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

58°

RealFeel® 55°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

0%

Mostly clear

WindSE 9 mph

Air QualityFair

Wind Gusts15 mph

Humidity85%

Indoor Humidity60% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

56°

RealFeel® 53°

Cool

RealFeel Guide

Cool

53° to 62°

Light jacket or sweater may be appropriate.

0%

Mostly clear

WindSE 9 mph

Air QualityFair

Wind Gusts14 mph

Humidity90%

Indoor Humidity60% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for DeKalb

AccuWeather's hourly forecast for DeKalb provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 67° with a RealFeel® of 67°, mostly cloudy with a 43% 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

Sunday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

LIVE: Hurricane Isaias path, landfall timing and evacuation updates

LATEST ENTRY

Saildrone faces waves over 32 feet, captures video inside Isaias’ eye

23 minutes ago

Hurricane

Hurricane Isaias to move swiftly onshore along central Gulf Coast

13 minutes ago

Weather News

Magnitude 7.7 earthquake rocks Panama creating tsunami threat

1 hour ago

Hurricane

Simon could become Category 4 hurricane amid triple tropical threat

3 hours ago

Severe Weather

Isaias may spin up tornadoes as it tracks across the Southeast

3 hours ago

Featured Stories

Hurricane

Isaias to sweep from central to northeastern US this weekend

11 minutes ago

Winter Weather

Winter forecast 2026-2027: El Niño to reshape snow, cold across US

1 day ago

Hurricane

Isaias breaks 121-year record as the Atlantic's latest first hurricane

7 hours ago

Weather News

Saturday brings prime fall foliage viewing in the East ahead of Isaias

2 days ago

Astronomy

Jupiter disappeared behind the moon in an eclipse-like event

3 days ago

World North America United States Illinois DeKalb

Weather Near DeKalb:

Chicago, IL
Joliet, IL
Naperville, IL

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

...

...

...