Hourly Weather Forecast - Fort Thompson, SD

4 AM
27°F
0%
6mph
SE
Foggy
Humidity
100%
Feels like
21°F
Dew Point
27°F
5 AM
27°F
0%
6mph
SE
Foggy
Humidity
100%
Feels like
20°F
Dew Point
27°F
6 AM
28°F
0%
8mph
SE
Foggy
Humidity
99%
Feels like
20°F
Dew Point
27°F
7 AM
29°F
0%
10mph
SE
Hazy
Humidity
95%
Feels like
20°F
Dew Point
28°F
8 AM
31°F
0%
12mph
SSE
Partly Cloudy
Humidity
90%
Feels like
21°F
Dew Point
28°F
8:06 AM
9 AM
33°F
0%
14mph
SSE
Mostly Sunny
Humidity
84%
Feels like
24°F
Dew Point
29°F
10 AM
37°F
0%
16mph
SSE
Mostly Sunny
Humidity
76%
Feels like
28°F
Dew Point
31°F
11 AM
42°F
0%
19mph
S
Partly Cloudy
Humidity
68%
Feels like
33°F
Dew Point
32°F
12 PM
46°F
0%
21mph
S
Windy
Humidity
61%
Feels like
38°F
Dew Point
33°F
1 PM
48°F
0%
23mph
S
Windy
Humidity
56%
Feels like
41°F
Dew Point
33°F
2 PM
50°F
10%
23mph
S
Windy
Humidity
52%
Feels like
50°F
Dew Point
33°F
3 PM
51°F
30%
23mph
S
30% Chance of Light Rain
Humidity
50%
Feels like
51°F
Dew Point
33°F
4 PM
51°F
30%
22mph
SSW
30% Chance of Light Rain
Humidity
51%
Feels like
51°F
Dew Point
34°F
5 PM
51°F
30%
21mph
SSW
30% Chance of Light Rain
Humidity
54%
Feels like
51°F
Dew Point
35°F
5:00 PM
6 PM
50°F
30%
18mph
SSW
30% Chance of Light Rain
Humidity
58%
Feels like
50°F
Dew Point
36°F
7 PM
49°F
40%
13mph
SW
40% Chance of Light Rain
Humidity
65%
Feels like
43°F
Dew Point
37°F
8 PM
47°F
30%
15mph
WNW
30% Chance of Light Rain
Humidity
72%
Feels like
41°F
Dew Point
38°F
9 PM
45°F
30%
20mph
WNW
30% Chance of Light Rain
Humidity
76%
Feels like
37°F
Dew Point
38°F
10 PM
43°F
20%
20mph
WNW
Mostly Cloudy
Humidity
74%
Feels like
34°F
Dew Point
35°F
11 PM
41°F
10%
19mph
WNW
Partly Cloudy
Humidity
68%
Feels like
32°F
Dew Point
31°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday'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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