Saint Marys, IA Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Clear -2°F
Feels Like -2°F  
Humidity 86% Dew Point -5°F Wind NW 1 MPH Gusts 3 Barometer 30.36 in.
Report from a personal weather station 5.4 mi. NE of central Saint Marys
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Point Forecast at a Glance

ThuDec 4
Thu Dec 4: Sunny, High 15F, Low 17F
15
17
FriDec 5
Fri Dec 5: Mostly Sunny, High 33F, Low 19F
33
19
SatDec 6
Sat Dec 6: Snow, High 29F, Low 9F
30%
29
9
SunDec 7
Sun Dec 7: Mostly Cloudy, High 19F, Low 2F
19
2
MonDec 8
Mon Dec 8: Partly Sunny, High 28F, Low 21F
28
21
TueDec 9
Tue Dec 9: Partly Sunny, High 36F, Low 26F
36
26
WedDec 10
Wed Dec 10: Mostly Cloudy, High 34F
34
 

7-Day Temperature Trend

Week Ahead Summary

High temperatures climb from 15°F to a high of 36°F by week's end. Mostly dry conditions with only one day showing snow chances.

Climate Context

This week's forecast shows temperatures running 8°F below the historical average for December. Normal highs for this period are around 36°F with lows around 18°F.

This Date in Weather History

1987 - A cold front crossing the Pacific Coast Region brought high winds and heavy rain to California. Thunderstorm winds gusted to 55 mph at Newport Beach CA, and Mount Wilson CA was drenched with 2.17 inches of rain in six hours. Gale force winds prevailed along the Northern Pacific Coast, and winds in the Tehachapis Mountains of southern California gusted to 60 mph.

More on this and other weather history

Saint Marys, IA 7 Day Weather Forecast Details

Thursday Dec 4

Sunny

Day: Sunny, with a high near 15. Wind chill values as low as -15. Calm wind becoming south 5 to 9 mph in the afternoon.

Mostly Clear

Night: Mostly clear, with a temperature rising to around 17 by 2am. Wind chill values as low as -5. South wind 9 to 14 mph, with gusts as high as 21 mph.

Friday Dec 5

Mostly Sunny

Day: Mostly sunny, with a high near 33. Wind chill values as low as 5. Southwest wind 9 to 11 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 19. West northwest wind 5 to 9 mph.

Saturday Dec 6

Snow

Day: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 29. Light and variable wind becoming east northeast 5 to 10 mph in the morning. Little or no snow accumulation expected.

Snow

Night: Snow likely, mainly before midnight. Cloudy, with a low around 9. Chance of precipitation is 60%.

Sunday Dec 7

Mostly Cloudy

Day: Mostly cloudy, with a high near 19.

Mostly Cloudy

Night: Mostly cloudy, with a low around 2.

Monday Dec 8

Partly Sunny

Day: Partly sunny, with a high near 28.

Mostly Cloudy

Night: Mostly cloudy, with a low around 21.

Tuesday Dec 9

Partly Sunny

Day: Partly sunny, with a high near 36.

Mostly Cloudy

Night: Mostly cloudy, with a low around 26.

Wednesday Dec 10

Mostly Cloudy

Day: Mostly cloudy, with a high near 34.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.