Hourly Weather Forecast - Hermosa, SD

8 PM
8°F
0%
5mph
S
Partly Cloudy
Humidity
86%
Feels like
-1°F
Dew Point
5°F
9 PM
9°F
0%
6mph
S
Partly Cloudy
Humidity
87%
Feels like
-2°F
Dew Point
6°F
10 PM
9°F
0%
7mph
S
Partly Cloudy
Humidity
87%
Feels like
-2°F
Dew Point
6°F
11 PM
10°F
0%
8mph
S
Partly Cloudy
Humidity
87%
Feels like
-2°F
Dew Point
7°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

In the path of a weak low-pressure system that brings snow to the Midwest and Northeast, extreme cold weather and brutally cold wind chill values will bring a bitter cold to much of the Nation.

Snowfall forecast through Sunday evening.

Snow Spreads Across the Ohio Valley into the Mid-Atlantic

Weekend Weather Outlook

Weekend Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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