Hourly Weather Forecast - Portsmouth, IA

12 AM
52°F
0%
9mph
SSE
Mostly Clear
Humidity
58%
Feels like
52°F
Dew Point
37°F
1 AM
51°F
0%
9mph
SSE
Partly Cloudy
Humidity
61%
Feels like
51°F
Dew Point
38°F
2 AM
50°F
0%
9mph
SSE
Partly Cloudy
Humidity
65%
Feels like
46°F
Dew Point
38°F
3 AM
49°F
0%
9mph
SSE
Partly Cloudy
Humidity
70%
Feels like
45°F
Dew Point
39°F
4 AM
48°F
0%
8mph
SSE
Partly Cloudy
Humidity
74%
Feels like
44°F
Dew Point
40°F
5 AM
47°F
0%
8mph
SSE
Partly Cloudy
Humidity
76%
Feels like
43°F
Dew Point
40°F
6 AM
46°F
0%
7mph
SSE
Partly Cloudy
Humidity
78%
Feels like
43°F
Dew Point
40°F
7 AM
47°F
0%
7mph
SSE
Mostly Cloudy
Humidity
78%
Feels like
43°F
Dew Point
40°F
7:17 AM
8 AM
49°F
0%
7mph
SSE
Partly Cloudy
Humidity
76%
Feels like
46°F
Dew Point
42°F
9 AM
53°F
0%
7mph
SSE
Partly Cloudy
Humidity
72%
Feels like
53°F
Dew Point
44°F
10 AM
56°F
0%
6mph
SSE
Mostly Sunny
Humidity
66%
Feels like
56°F
Dew Point
45°F
11 AM
61°F
0%
7mph
SSE
Sunny
Humidity
59%
Feels like
61°F
Dew Point
47°F
12 PM
66°F
0%
7mph
S
Sunny
Humidity
52%
Feels like
66°F
Dew Point
47°F
1 PM
70°F
0%
6mph
S
Sunny
Humidity
45%
Feels like
70°F
Dew Point
48°F
2 PM
73°F
0%
3mph
SW
Sunny
Humidity
40%
Feels like
73°F
Dew Point
47°F
3 PM
75°F
0%
4mph
NW
Sunny
Humidity
34%
Feels like
75°F
Dew Point
45°F
4 PM
77°F
0%
8mph
NW
Sunny
Humidity
31%
Feels like
77°F
Dew Point
44°F
5 PM
76°F
0%
8mph
NNW
Sunny
Humidity
31%
Feels like
76°F
Dew Point
44°F
6 PM
75°F
0%
6mph
NNW
Sunny
Humidity
33%
Feels like
75°F
Dew Point
44°F
7 PM
72°F
0%
4mph
N
Sunny
Humidity
36%
Feels like
72°F
Dew Point
44°F
7:39 PM
8 PM
69°F
0%
2mph
NNE
Clear
Humidity
41%
Feels like
69°F
Dew Point
44°F
9 PM
64°F
0%
3mph
E
Clear
Humidity
48%
Feels like
64°F
Dew Point
44°F
10 PM
60°F
0%
5mph
ESE
Clear
Humidity
54%
Feels like
60°F
Dew Point
44°F
11 PM
58°F
0%
6mph
SE
Mostly Clear
Humidity
58%
Feels like
58°F
Dew Point
43°F

Sunday's High Temperature Outlook

Early Spring Heat Wave Zaps Southwest

Much of the Southwest will observe record-breaking heat through the weekend, with high temperatures reminiscent of mid-summer!

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

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

When Does Spring Begin?

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