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150 million in South, East face major snow and ice storm. Get the forecast. Chevron right

St. Marys, IA

40°F
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St. Marys, IA Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center
Today WinterCast Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Thursday, January 22

Day

1/22
34°Hi
RealFeel® 21°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
RealFeel Shade™ 21°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
Mostly cloudy and breezy

Max UV Index1.0 (Low)

AccuLumen Brightness Index™3 (Dull)

WindWNW 14 mph

Wind Gusts33 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover80%

Morning

Afternoon

Night

1/22
-12°Lo
RealFeel® -30°
Dangerous Cold
RealFeel Guide
Dangerous Cold
-43° to -25°
Significant caution advised. Frostbite to exposed skin within 2 minutes. Hypothermia likely without protective clothing.
LEARN MORE
Partly cloudy, windy and frigid; extreme cold can be dangerous for outdoor activities
alerts

Extreme Cold Watch

12:00 AM Friday - 12:00 PM Saturday

WindN 16 mph

Wind Gusts27 mph

Probability of Precipitation1%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover45%

Evening

Overnight

Sun & Moon

9 hrs 44 mins
Rise 7:35 AM
Set 5:19 PM
Waxing Crescent
Rise 9:37 AM
Set 9:39 PM

Temperature History

1/22
High
Low
Forecast
34°
-12°
Average
31°
13°
Last Year
31°
14°
Record
59°
2002
-23°
1883

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World North America United States Iowa St. Marys

Weather Near St. Marys:

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