Castalia, IA Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Sunny with Light Snow 10°F
Feels Like -7°F  
Humidity 50% Dew Point -5°F Wind S 15 MPH Gusts 17 Barometer N/A
Solar Rad 301 w/m2
Report from a MADIS/MESONET weather station 9.3 mi. N of central Castalia
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Point Forecast at a Glance

ThuDec 4
Thu Dec 4: Sunny, High 10F, Low 14F
10
14
FriDec 5
Fri Dec 5: Snow, High 28F, Low 13F
30%
28
13
SatDec 6
Sat Dec 6: Partly Sunny, High 21F, Low 9F
21
9
SunDec 7
Sun Dec 7: Mostly Sunny, High 14F, Low -6F
14
-6
MonDec 8
Mon Dec 8: Snow, High 22F, Low 12F
20%
22
12
TueDec 9
Tue Dec 9: Mostly Cloudy, High 27F, Low 17F
27
17
WedDec 10
Wed Dec 10: Snow, High 26F
30%
26
 

7-Day Temperature Trend

Week Ahead Summary

Significant warming trend with high temperatures climbing from 10°F to 26°F, reaching a high of 28°F. Unsettled weather expected with snow likely on at least 5 days.

Climate Context

This week's forecast shows temperatures running 10°F below the historical average for December. Normal highs for this period are around 31°F with lows around 15°F.

This Date in Weather History

1786 - The first of two great early December storms began. The storm produced 18 inches of snow at Morristown NJ, and twenty inches of snow at New Haven CT. It also resulted in high tides at Nantucket which did great damage.

More on this and other weather history

Castalia, IA 7 Day Weather Forecast Details

Thursday Dec 4

Sunny

Day: Sunny, with a high near 10. Wind chill values as low as -7. South wind around 10 mph, with gusts as high as 21 mph.

Mostly Cloudy

Night: Mostly cloudy, with a temperature rising to around 14 by 3am. Wind chill values as low as -8. South wind 10 to 14 mph, with gusts as high as 22 mph.

Friday Dec 5

Snow

Day: A 30 percent chance of snow, mainly before 1pm. Increasing clouds, with a high near 28. Southwest wind 7 to 10 mph, with gusts as high as 18 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 13. West wind 6 to 8 mph becoming northwest after midnight.

Saturday Dec 6

Partly Sunny

Day: Partly sunny, with a high near 21. Northwest wind around 6 mph becoming light and variable.

Snow

Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 9. Northeast wind 5 to 8 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Sunday Dec 7

Mostly Sunny

Day: Mostly sunny, with a high near 14. North wind around 8 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around -6. North wind around 6 mph becoming calm.

Monday Dec 8

Snow

Day: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 22. South wind 5 to 10 mph, with gusts as high as 20 mph.

Snow

Night: A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 12. South wind around 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

Tuesday Dec 9

Mostly Cloudy

Day: Mostly cloudy, with a high near 27. West wind 7 to 10 mph.

Snow

Night: Snow likely. Cloudy, with a low around 17. South wind 7 to 11 mph becoming northwest after midnight. Chance of precipitation is 60%.

Wednesday Dec 10

Snow

Day: A 30 percent chance of snow. Mostly cloudy, with a high near 26. Northwest wind 11 to 14 mph, with gusts as high as 22 mph.


About Castalia, IA

Castalia is a city in Winneshiek County, Iowa, United States. The population was 145 at the 2020 census.

Content from Wikipedia, licensed under CC BY-SA 3.0.

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.