Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Hurricane Erin to grow, threatens US coast this week. Click for details. Chevron right

Ajax, SD

88°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Ajax

South Dakota

88°
No results found.
Try searching for a city, zip code or point of interest.
settings
Ajax, SD 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

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Monday, August 18

Day

8/18
92°Hi
RealFeel® 93°
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™ 88°
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
Partly sunny and very warm, becoming breezy in the afternoon with a thunderstorm; thunderstorms can bring hail and damaging winds

Max UV Index8.0 (Very High)

AccuLumen Brightness Index™9 (Very Bright)

WindE 12 mph

Wind Gusts28 mph

Probability of Precipitation55%

Probability of Thunderstorms33%

Precipitation0.05 in

Rain0.05 in

Hours of Precipitation0.5

Hours of Rain0.5

Cloud Cover29%

Morning

Afternoon

Night

8/18
62°Lo
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
A thunderstorm in parts of the area in the evening; otherwise, mainly clear; thunderstorms can bring hail and damaging winds

WindWNW 7 mph

Wind Gusts15 mph

Probability of Precipitation55%

Probability of Thunderstorms33%

Precipitation0.05 in

Rain0.05 in

Hours of Precipitation0.5

Hours of Rain0.5

Cloud Cover11%

Evening

Overnight

Sun & Moon

13 hrs 52 mins
Rise 6:00 AM
Set 7:52 PM
Waning Crescent
Rise 12:27 AM
Set 5:18 PM

Temperature History

8/18
High
Low
Forecast
92°
62°
Average
85°
56°
Last Year
95°
64°
Record
104°
1959
43°
2002

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Hurricane Erin to grow, will next threaten US coasts

3 hours ago

Weather Forecasts

Fall forecast 2025: Warmth to fuel fires, storms before chill hits US

3 hours ago

Hurricane

Hurricane safety: Explaining rapid intensification and how to prepare

2 days ago

Weather Forecasts

Cool sweep to erase heat, high humidity in Northeast

3 hours ago

Severe Weather

Flooding, severe weather to linger in north-central US

5 hours ago

 More Stories

Featured Stories

Weather News

Heavy rain in Indian Kashmir leaves dozens dead, more than 200 missing

2 days ago

Weather News

Pompeii’s remains reveal a hidden postscript

2 days ago

Astronomy

Goodbye long days: Where sunset is now happening before 8 pm

2 days ago

Weather News

US teen pilot accused of unauthorized Antarctic landing reaches deal

3 days ago

Weather News

New York skyscraper had 1-in-16 chance of collapse. Only one man knew

2 days ago
World North America United States South Dakota Ajax

Weather Near Ajax:

  • Rapid City, SD
  • Sheridan, WY
  • Spearfish, SD
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

...

...

...