Hourly Weather Forecast - Portsmouth, IA

6 AM
47°F
0%
19mph
NNE
Mostly Cloudy
Humidity
85%
Feels like
40°F
Dew Point
43°F
7 AM
45°F
0%
19mph
NNE
Mostly Cloudy
Humidity
85%
Feels like
38°F
Dew Point
41°F
7:22 AM
8 AM
44°F
0%
19mph
NNE
Mostly Cloudy
Humidity
83%
Feels like
36°F
Dew Point
40°F
9 AM
44°F
0%
20mph
NNE
Cloudy
Humidity
81%
Feels like
36°F
Dew Point
38°F
10 AM
44°F
0%
20mph
N
Windy
Humidity
78%
Feels like
36°F
Dew Point
38°F
11 AM
45°F
0%
21mph
N
Windy
Humidity
73%
Feels like
37°F
Dew Point
37°F
12 PM
46°F
0%
21mph
N
Windy
Humidity
67%
Feels like
38°F
Dew Point
36°F
1 PM
47°F
0%
21mph
N
Windy
Humidity
61%
Feels like
40°F
Dew Point
35°F
2 PM
49°F
0%
20mph
N
Partly Cloudy
Humidity
55%
Feels like
42°F
Dew Point
33°F
3 PM
50°F
0%
20mph
N
Mostly Sunny
Humidity
50%
Feels like
50°F
Dew Point
32°F
4 PM
51°F
0%
19mph
N
Sunny
Humidity
47%
Feels like
51°F
Dew Point
31°F
5 PM
50°F
0%
17mph
N
Sunny
Humidity
44%
Feels like
50°F
Dew Point
29°F
6 PM
49°F
0%
15mph
N
Sunny
Humidity
43%
Feels like
44°F
Dew Point
28°F
7 PM
47°F
0%
13mph
N
Sunny
Humidity
46%
Feels like
42°F
Dew Point
28°F
7:36 PM
8 PM
45°F
0%
11mph
N
Clear
Humidity
50%
Feels like
40°F
Dew Point
28°F
9 PM
42°F
0%
9mph
NNE
Clear
Humidity
57%
Feels like
36°F
Dew Point
28°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
67%
Feels like
33°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

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