For Business
|
Warnings
Data Suite
Forensics
Advertising
Superior Accuracy™

Severe weather outbreak to peak Friday with tornadoes. Click for the forecast.

Johnston, IA

Location

Location News Videos

Use Current Location

Recent

Johnston

Iowa

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

Johnston, IA 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

3 PM

73°

RealFeel® 72°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

48%

Intermittent clouds

Tornado Watch

12:40 PM Friday - 8:00 PM Friday

RealFeel Shade™69°

WindWSW 23 mph

Air QualityPoor

Max UV Index5.0 (Moderate)

Wind Gusts31 mph

Humidity67%

Indoor Humidity67% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover58%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

67°

RealFeel® 65°

Pleasant

RealFeel Guide

Pleasant

63° to 81°

Most consider this temperature range ideal.

49%

Intermittent clouds

Tornado Watch

12:40 PM Friday - 8:00 PM Friday

RealFeel Shade™62°

WindW 23 mph

Air QualityFair

Max UV Index3.5 (Moderate)

Wind Gusts37 mph

Humidity69%

Indoor Humidity67% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

61°

RealFeel® 49°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

65%

Mostly cloudy w/ t-storms

Tornado Watch

12:40 PM Friday - 8:00 PM Friday

RealFeel Shade™49°

WindWNW 23 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts37 mph

Humidity83%

Indoor Humidity64% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.20 in

Visibility3 mi

Cloud Ceiling2000 ft

6 PM

57°

RealFeel® 49°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

49%

Intermittent clouds

Tornado Watch

12:40 PM Friday - 8:00 PM Friday

RealFeel Shade™49°

WindNW 23 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts37 mph

Humidity79%

Indoor Humidity53% (Ideal Humidity)

Dew Point50° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

7 PM

54°

RealFeel® 44°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

38%

Intermittent clouds

Tornado Watch

12:40 PM Friday - 8:00 PM Friday

RealFeel Shade™44°

WindNW 23 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts38 mph

Humidity74%

Indoor Humidity44% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling7100 ft

8 PM

51°

RealFeel® 41°

Chilly

RealFeel Guide

Chilly

40° to 52°

Jacket or sweater is recommended.

16%

Cloudy

WindNNW 20 mph

Air QualityFair

Wind Gusts29 mph

Humidity64%

Indoor Humidity35% (Slightly Dry)

Dew Point39° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling7800 ft

9 PM

48°

RealFeel® 37°

Cold

RealFeel Guide

Cold

25° to 39°

Coats and hats are appropriate, consider gloves and a scarf.

16%

Cloudy

WindNNW 18 mph

Air QualityFair

Wind Gusts29 mph

Humidity65%

Indoor Humidity31% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling8600 ft

10 PM

45°

RealFeel® 34°

Cold

RealFeel Guide

Cold

25° to 39°

Coats and hats are appropriate, consider gloves and a scarf.

16%

Cloudy

WindNNW 17 mph

Air QualityFair

Wind Gusts28 mph

Humidity66%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling9300 ft

11 PM

44°

RealFeel® 33°

Cold

RealFeel Guide

Cold

25° to 39°

Coats and hats are appropriate, consider gloves and a scarf.

16%

Cloudy

WindNNW 15 mph

Air QualityFair

Wind Gusts23 mph

Humidity67%

Indoor Humidity42% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling11100 ft

Hourly Weather Forecast for Johnston

AccuWeather's hourly forecast for Johnston provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 73° with a RealFeel® of 72°, intermittent clouds with a 48% 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

Severe Weather

Severe weather outbreak to peak Friday with tornado risk in central US

2 hours ago

Winter Weather

Cars are emerging from a massive snow pile months after winter storms

1 day ago

Winter Weather

Grab the jackets again as cold air, freezes return to the Northeast

22 minutes ago

Severe Weather

1st lightning death of 2026 reported after Wisconsin storm

5 hours ago

Astronomy

Artemis II astronauts describe their historic mission

7 hours ago

Featured Stories

Astronomy

Lyrids 2026: How to see the 1st meteor shower since January

5 hours ago

Weather News

Evacuations, rescues underway as flooding continues in Wisconsin, Mich...

2 hours ago

Weather News

Falling ice chunk crashes through roof, lands on living room couch

23 hours ago

Weather News

7-month-old dies after being found in hot car in Tennessee

7 hours ago

Weather News

114 years later: How weather helped seal the Titanic’s fate

2 days ago

World North America United States Iowa Johnston

Weather Near Johnston:

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 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

...

...

...