Hourly Weather Forecast - Portsmouth, IA

12 AM
42°F
10%
15mph
N
Cloudy
Humidity
47%
Feels like
34°F
Dew Point
23°F
1 AM
40°F
10%
15mph
N
Cloudy
Humidity
50%
Feels like
32°F
Dew Point
23°F
2 AM
38°F
20%
14mph
N
Cloudy
Humidity
52%
Feels like
30°F
Dew Point
22°F
3 AM
36°F
20%
13mph
NNE
Mostly Cloudy
Humidity
53%
Feels like
28°F
Dew Point
21°F
4 AM
35°F
20%
12mph
NNE
Mostly Cloudy
Humidity
54%
Feels like
27°F
Dew Point
20°F
5 AM
34°F
10%
11mph
NNE
Partly Cloudy
Humidity
56%
Feels like
25°F
Dew Point
20°F
6 AM
33°F
10%
11mph
NNE
Partly Cloudy
Humidity
58%
Feels like
24°F
Dew Point
19°F
7 AM
32°F
10%
10mph
N
Partly Cloudy
Humidity
58%
Feels like
24°F
Dew Point
19°F
7:13 AM
8 AM
33°F
10%
11mph
N
Mostly Sunny
Humidity
56%
Feels like
24°F
Dew Point
19°F
9 AM
34°F
10%
11mph
N
Sunny
Humidity
53%
Feels like
25°F
Dew Point
18°F
10 AM
35°F
10%
12mph
N
Sunny
Humidity
50%
Feels like
27°F
Dew Point
18°F
11 AM
37°F
10%
13mph
N
Sunny
Humidity
46%
Feels like
29°F
Dew Point
18°F
12 PM
40°F
10%
13mph
N
Sunny
Humidity
42%
Feels like
32°F
Dew Point
18°F
1 PM
42°F
10%
13mph
N
Sunny
Humidity
38%
Feels like
35°F
Dew Point
18°F
2 PM
44°F
10%
13mph
N
Sunny
Humidity
35%
Feels like
37°F
Dew Point
18°F
3 PM
45°F
10%
13mph
N
Sunny
Humidity
32%
Feels like
39°F
Dew Point
18°F
4 PM
46°F
10%
13mph
N
Sunny
Humidity
31%
Feels like
40°F
Dew Point
17°F
5 PM
46°F
0%
12mph
N
Sunny
Humidity
29%
Feels like
41°F
Dew Point
16°F
6 PM
46°F
0%
11mph
N
Sunny
Humidity
29%
Feels like
41°F
Dew Point
16°F
7 PM
45°F
0%
9mph
N
Sunny
Humidity
30%
Feels like
40°F
Dew Point
15°F
7:41 PM
8 PM
42°F
0%
7mph
N
Clear
Humidity
33%
Feels like
38°F
Dew Point
16°F
9 PM
40°F
0%
5mph
NE
Clear
Humidity
38%
Feels like
36°F
Dew Point
16°F
10 PM
37°F
0%
4mph
ENE
Clear
Humidity
42%
Feels like
34°F
Dew Point
16°F
11 PM
35°F
0%
4mph
E
Clear
Humidity
45%
Feels like
32°F
Dew Point
16°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.

Sunday's High Temperature Outlook

Early Spring Heat Wave Zaps Southwest

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

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