Hourly Weather Forecast - Portsmouth, IA

7 AM
44°F
0%
18mph
NNE
Mostly Cloudy
Humidity
82%
Feels like
37°F
Dew Point
39°F
7:22 AM
8 AM
43°F
0%
19mph
NNE
Mostly Cloudy
Humidity
82%
Feels like
35°F
Dew Point
38°F
9 AM
43°F
0%
20mph
NNE
Cloudy
Humidity
80%
Feels like
34°F
Dew Point
37°F
10 AM
43°F
0%
21mph
N
Windy
Humidity
78%
Feels like
34°F
Dew Point
37°F
11 AM
44°F
0%
21mph
N
Windy
Humidity
73%
Feels like
35°F
Dew Point
36°F
12 PM
45°F
0%
21mph
N
Windy
Humidity
66%
Feels like
37°F
Dew Point
35°F
1 PM
47°F
0%
21mph
N
Windy
Humidity
60%
Feels like
39°F
Dew Point
34°F
2 PM
48°F
0%
21mph
N
Windy
Humidity
55%
Feels like
41°F
Dew Point
33°F
3 PM
49°F
0%
20mph
N
Windy
Humidity
50%
Feels like
43°F
Dew Point
31°F
4 PM
50°F
0%
19mph
N
Mostly Sunny
Humidity
46%
Feels like
50°F
Dew Point
30°F
5 PM
50°F
0%
18mph
N
Mostly Sunny
Humidity
44%
Feels like
50°F
Dew Point
29°F
6 PM
49°F
0%
16mph
N
Mostly Sunny
Humidity
43%
Feels like
43°F
Dew Point
28°F
7 PM
47°F
0%
13mph
N
Sunny
Humidity
44%
Feels like
42°F
Dew Point
27°F
7:36 PM
8 PM
45°F
0%
11mph
N
Clear
Humidity
50%
Feels like
39°F
Dew Point
27°F
9 PM
42°F
0%
9mph
N
Clear
Humidity
56%
Feels like
36°F
Dew Point
27°F
10 PM
39°F
0%
7mph
NNE
Clear
Humidity
62%
Feels like
34°F
Dew Point
27°F
11 PM
37°F
0%
6mph
NNE
Clear
Humidity
66%
Feels like
32°F
Dew Point
27°F

Today's Severe Weather Outlook

Dangerous Spring Storms Take Aim at Ohio Valley, Mid-Atlantic

Spring is here and Mother Nature is set to bring dangerous thunderstorms to parts of the Great Lakes, Ohio Valley and Mid-Atlantic.

Today's High Temperature Outlook

Summer-Like Heat Bakes the Southern U.S.

Weekend Weather Outlook

Today's Weather Outlook

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

(Image provided by Pixabay.com)

Lightning Safety

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

Strong Winds in the Springtime

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide