Hourly Weather Forecast - Lyons, SD

12 AM
22°F
10%
4mph
NW
Partly Cloudy
Humidity
76%
Feels like
16°F
Dew Point
15°F
1 AM
21°F
10%
4mph
NW
Partly Cloudy
Humidity
76%
Feels like
15°F
Dew Point
15°F
2 AM
20°F
10%
4mph
NNW
Partly Cloudy
Humidity
76%
Feels like
14°F
Dew Point
14°F
3 AM
20°F
10%
4mph
NNW
Partly Cloudy
Humidity
76%
Feels like
15°F
Dew Point
14°F
4 AM
20°F
20%
1mph
N
Partly Cloudy
Humidity
76%
Feels like
20°F
Dew Point
13°F
5 AM
20°F
20%
4mph
SSE
Mostly Cloudy
Humidity
76%
Feels like
15°F
Dew Point
13°F
6 AM
20°F
30%
7mph
SSE
30% Chance of Snow
Humidity
76%
Feels like
11°F
Dew Point
14°F
7 AM
20°F
30%
8mph
SSE
30 % Chance of Heavy Snow
Humidity
77%
Feels like
11°F
Dew Point
15°F
7:58 AM
8 AM
21°F
30%
8mph
SSE
30% Chance of Heavy Snow
Humidity
79%
Feels like
11°F
Dew Point
15°F
9 AM
22°F
30%
8mph
SSE
30% Chance of Heavy Snow
Humidity
79%
Feels like
13°F
Dew Point
17°F
10 AM
24°F
30%
9mph
SSE
30% Chance of Snow
Humidity
77%
Feels like
14°F
Dew Point
18°F
11 AM
26°F
30%
10mph
SSE
30% Chance Snow Showers
Humidity
74%
Feels like
16°F
Dew Point
19°F
12 PM
28°F
20%
11mph
S
Mostly Sunny
Humidity
72%
Feels like
18°F
Dew Point
20°F
1 PM
29°F
10%
11mph
S
Mostly Sunny
Humidity
71%
Feels like
20°F
Dew Point
21°F
2 PM
30°F
10%
10mph
S
Partly Cloudy
Humidity
70%
Feels like
21°F
Dew Point
22°F
3 PM
30°F
10%
9mph
S
Partly Cloudy
Humidity
71%
Feels like
22°F
Dew Point
22°F
4 PM
29°F
20%
8mph
S
Mostly Sunny
Humidity
74%
Feels like
22°F
Dew Point
22°F
4:53 PM
5 PM
28°F
30%
7mph
S
30% Chance Snow Showers
Humidity
78%
Feels like
21°F
Dew Point
22°F
6 PM
27°F
30%
6mph
SSE
30% Chance Snow Showers
Humidity
81%
Feels like
20°F
Dew Point
22°F
7 PM
26°F
30%
6mph
SSE
30% Chance Snow Showers
Humidity
82%
Feels like
20°F
Dew Point
22°F
8 PM
26°F
30%
5mph
SSE
30% Chance Snow Showers
Humidity
81%
Feels like
20°F
Dew Point
21°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's 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 person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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