St. Mary, MO Local Weather

Tuesday, April 21

Day

4/21

79°Hi

RealFeel® 81°

RealFeel Shade™ 75°

Breezy in the morning; otherwise, times of sun and clouds

Max UV Index9.0 (Very High)

AccuLumen Brightness Index™8 (Bright)

WindSSW 12 mph

Wind Gusts28 mph

Probability of Precipitation4%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover46%

Morning

Afternoon

Night

4/21

55°Lo

RealFeel® 53°

Clear

WindSW 7 mph

Wind Gusts17 mph

Probability of Precipitation6%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover0%

Evening

Overnight

Sun & Moon

13 hrs 25 mins

Rise 6:16 AM

Set 7:41 PM

Waxing Crescent

Rise 9:16 AM

Set 1:09 AM

Temperature History

4/21

High

Low

Forecast

79°

55°

Average

71°

47°

Last Year

71°

55°

Record

91°

1987

29°

1950

Further Ahead

Hourly

10-Day

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

Severe weather, tornado risk on Saturday from New York to Tennessee

41 minutes ago

Winter Weather

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

2 days ago

Winter Weather

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

1 hour ago

Severe Weather

1st lightning death of 2026 reported after Wisconsin storm

1 day ago

Astronomy

Artemis II astronauts describe their historic mission

1 day ago

Featured Stories

Astronomy

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

4 hours ago

Weather News

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

20 hours ago

Weather News

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

1 day ago

Weather News

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

1 day ago

Weather News

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

2 days ago

St. Mary, MO