Portsmouth, IA Weather Forecast and Current Conditions

Current Conditions From Nearby Station

Sunny 16°F
Feels Like 2°F  
Humidity 52% Dew Point 1°F Wind S 13 MPH Barometer 30.19 in.
Solar Rad 277 w/m2 Visibility 10 mi.
Report from a NOAA weather station 10.6 mi. ESE of central Portsmouth
at

Point Forecast at a Glance

ThuDec 4
Thu Dec 4: Mostly Sunny, High 14F
14
 
FriDec 5
Fri Dec 5: Mostly Sunny, High 34F, Low 16F
34
16
SatDec 6
Sat Dec 6: Snow, High 29F, Low 9F
50%
29
9
SunDec 7
Sun Dec 7: Mostly Cloudy, High 15F, Low -1F
15
-1
MonDec 8
Mon Dec 8: Partly Sunny, High 28F, Low 19F
28
19
TueDec 9
Tue Dec 9: Partly Sunny, High 37F, Low 25F
37
25
WedDec 10
Wed Dec 10: Mostly Cloudy, High 32F
32
 

7-Day Temperature Trend

Week Ahead Summary

High temperatures climb from 14°F to a high of 37°F by week's end. Some precipitation possible with wintry mix on at least one day.

Climate Context

This week's forecast shows temperatures running 8°F below the historical average for December. Normal highs for this period are around 35°F with lows around 17°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

Portsmouth, IA 7 Day Weather Forecast Details

Thursday Dec 4

Mostly Sunny

Day: Mostly sunny, with a steady temperature around 14. South wind around 14 mph, with gusts as high as 21 mph.

Mostly Clear

Night: Mostly clear, with a temperature falling to near 13 by 8pm, then rising to around 17 during the remainder of the night. South southwest wind 8 to 13 mph, with gusts as high as 21 mph.

Friday Dec 5

Mostly Sunny

Day: Mostly sunny, with a high near 34. South southwest wind 6 to 9 mph becoming west in the afternoon.

Mostly Cloudy

Night: Mostly cloudy, with a low around 16. West northwest wind 5 to 7 mph becoming calm in the evening.

Saturday Dec 6

Snow

Day: A 50 percent chance of snow after noon. Cloudy, with a high near 29. Light east wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

Snow

Night: Snow likely, mainly before midnight. Cloudy, with a low around 9. East wind around 10 mph becoming north northeast after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 60%.

Sunday Dec 7

Mostly Cloudy

Day: Mostly cloudy, with a high near 15. North northeast wind 5 to 8 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around -1. Light and variable wind becoming south around 6 mph after midnight.

Monday Dec 8

Partly Sunny

Day: Partly sunny, with a high near 28. South wind 6 to 10 mph, with gusts as high as 16 mph.

Partly Cloudy

Night: Partly cloudy, with a low around 19. South southwest wind 6 to 8 mph becoming west after midnight.

Tuesday Dec 9

Partly Sunny

Day: Partly sunny, with a high near 37. West wind 6 to 8 mph becoming south in the afternoon.

Rain And Snow

Night: A slight chance of rain and snow. Mostly cloudy, with a low around 25. South wind 7 to 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.

Wednesday Dec 10

Mostly Cloudy

Day: Mostly cloudy, with a high near 32. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.


About Portsmouth, IA

Portsmouth is a city in Shelby County, Iowa, United States. The population was 182 at the time of 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.