South Des Moines, IA Weather Forecast and Current Conditions

WEATHER ALERTS - Wind Advisory

Current Conditions From Nearby Local Station

Cloudy 49°F
Feels Like 43°F  
Humidity 80% Dew Point 43°F Wind S 16 MPH Gusts 26 Barometer 29.45 in.
Visibility 10 mi.
Report from a NOAA weather station 1.6 mi. W of central South Des Moines
at

Point Forecast at a Glance

WedDec 17
Wed Dec 17: Rain, Low 37F
100%
 
37
ThuDec 18
Thu Dec 18: Snow, High 21F, Low 15F
40%
21
15
FriDec 19
Fri Dec 19: Mostly Sunny, High 36F, Low 30F
36
30
SatDec 20
Sat Dec 20: Partly Sunny, High 41F, Low 21F
41
21
SunDec 21
Sun Dec 21: Mostly Sunny, High 39F, Low 29F
39
29
MonDec 22
Mon Dec 22: Partly Sunny, High 46F, Low 34F
46
34
TueDec 23
Tue Dec 23: Partly Sunny, High 47F, Low 28F
47
28

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Warming trend through the week with high temperatures climbing from 36°F to 47°F. Some precipitation possible, including both rain and snow.

Climate Context

This week's forecast shows temperatures running 7°F above the historical average for December. Normal highs for this period are around 35°F with lows around 17°F.

This Date in Weather History

1929 - An icestorm in western New York State resulted in much damage and hardship. A Buffalo report stated, "one was kept awake by the breaking limbs, which snapped off with a report much louder than a rifle shot."

More on this and other weather history

South Des Moines, IA 7 Day Weather Forecast Details

Wednesday Dec 17

Rain

Night: Rain, mainly after 3am. Low around 37. South wind 13 to 15 mph becoming west. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Dec 18

Snow

Day: A chance of rain before noon, then a slight chance of snow between noon and 1pm. Cloudy through mid morning, then becoming mostly sunny, with a temperature falling to around 21 by 5pm. Wind chill values as low as 5. Windy, with a west wind 16 to 21 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 49 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Mostly Clear

Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 15. Wind chill values as low as zero. Windy, with a northwest wind 18 to 28 mph decreasing to 7 to 17 mph after midnight. Winds could gust as high as 47 mph.

Friday Dec 19

Mostly Sunny

Day: Mostly sunny, with a high near 36. Wind chill values as low as 5. West northwest wind 5 to 14 mph becoming south southeast in the afternoon. Winds could gust as high as 22 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 30. South wind 10 to 14 mph, with gusts as high as 22 mph.

Saturday Dec 20

Partly Sunny

Day: Partly sunny, with a high near 41.

Mostly Clear

Night: Mostly clear, with a low around 21.

Sunday Dec 21

Mostly Sunny

Day: Mostly sunny, with a high near 39.

Mostly Cloudy

Night: Mostly cloudy, with a low around 29.

Monday Dec 22

Partly Sunny

Day: Partly sunny, with a high near 46.

Mostly Cloudy

Night: Mostly cloudy, with a low around 34.

Tuesday Dec 23

Partly Sunny

Day: Partly sunny, with a high near 47.

Mostly Cloudy

Night: Mostly cloudy, with a low around 28.

Wednesday Dec 24

Mostly Cloudy

Day: Mostly cloudy, with a high near 43.

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.