Hourly Weather Forecast - Hermosa, SD

12 AM
40°F
10%
11mph
W
Mostly Clear
Humidity
54%
Feels like
34°F
Dew Point
25°F
1 AM
39°F
10%
11mph
W
Mostly Clear
Humidity
53%
Feels like
33°F
Dew Point
24°F
2 AM
38°F
10%
10mph
W
Mostly Clear
Humidity
53%
Feels like
32°F
Dew Point
23°F
3 AM
38°F
10%
11mph
W
Mostly Clear
Humidity
51%
Feels like
31°F
Dew Point
22°F
4 AM
37°F
10%
11mph
WNW
Clear
Humidity
50%
Feels like
29°F
Dew Point
20°F
5 AM
36°F
10%
11mph
WNW
Clear
Humidity
49%
Feels like
28°F
Dew Point
19°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California through Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Today's Weather Outlook

Today's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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