Hourly Weather Forecast - Portsmouth, IA

9 AM
10°F
0%
5mph
SSE
Partly Cloudy
Humidity
72%
Feels like
1°F
Dew Point
2°F
10 AM
12°F
0%
7mph
SSE
Mostly Cloudy
Humidity
67%
Feels like
1°F
Dew Point
4°F
11 AM
15°F
10%
9mph
SSE
Cloudy
Humidity
64%
Feels like
3°F
Dew Point
5°F
12 PM
18°F
10%
12mph
SSE
Cloudy
Humidity
62%
Feels like
6°F
Dew Point
8°F
1 PM
21°F
20%
13mph
SSE
Cloudy
Humidity
62%
Feels like
8°F
Dew Point
10°F
2 PM
23°F
30%
15mph
S
30% Chance of Flurries
Humidity
63%
Feels like
10°F
Dew Point
12°F
3 PM
24°F
30%
16mph
S
30% Chance of Flurries
Humidity
66%
Feels like
11°F
Dew Point
14°F
4 PM
25°F
20%
16mph
S
Cloudy
Humidity
68%
Feels like
13°F
Dew Point
16°F
5 PM
27°F
10%
16mph
S
Cloudy
Humidity
66%
Feels like
15°F
Dew Point
17°F
6 PM
28°F
10%
14mph
S
Cloudy
Humidity
64%
Feels like
17°F
Dew Point
18°F
7 PM
29°F
10%
13mph
S
Mostly Cloudy
Humidity
63%
Feels like
19°F
Dew Point
18°F
7:30 PM
8 PM
29°F
0%
12mph
S
Cloudy
Humidity
65%
Feels like
19°F
Dew Point
19°F
9 PM
29°F
30%
11mph
S
30 % Chance of Heavy Snow
Humidity
69%
Feels like
19°F
Dew Point
20°F
10 PM
28°F
30%
10mph
S
30 % Chance of Heavy Snow
Humidity
73%
Feels like
19°F
Dew Point
21°F
11 PM
28°F
0%
9mph
S
Partly Cloudy
Humidity
76%
Feels like
20°F
Dew Point
22°F

Tuesday's Weather Outlook

Today's Weather Outlook

Unsettled weather begins to fizzle out today as dry weather spreads throughout more regions of the country.

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

The 2011 St. Patrick's Day Parade in Hornell, New York. (Marduk via Wikimedia Commons)

The History of St. Patrick's Day

Weekly Drought Map for March 12, 2026

Widespread Drought Improvement For The South, Midwest

Blizzard: Its True Definition

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide