Hourly Weather Forecast - Portsmouth, IA

12 AM
34°F
0%
3mph
SE
Clear
Humidity
49%
Feels like
31°F
Dew Point
17°F
1 AM
33°F
0%
3mph
SSE
Clear
Humidity
52%
Feels like
30°F
Dew Point
17°F
2 AM
31°F
0%
3mph
S
Clear
Humidity
55%
Feels like
28°F
Dew Point
17°F
3 AM
30°F
0%
4mph
SSW
Clear
Humidity
57%
Feels like
26°F
Dew Point
17°F
4 AM
29°F
0%
4mph
SW
Clear
Humidity
60%
Feels like
24°F
Dew Point
17°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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