Hourly Weather Forecast - Castalian Springs, TN

12 AM
40°F
30%
8mph
W
30% Chance Rain Showers
Humidity
87%
Feels like
35°F
Dew Point
37°F
1 AM
38°F
30%
9mph
W
30% Chance Rain Showers
Humidity
84%
Feels like
32°F
Dew Point
34°F
2 AM
36°F
0%
9mph
W
Partly Cloudy
Humidity
84%
Feels like
29°F
Dew Point
31°F
3 AM
34°F
0%
10mph
WNW
Partly Cloudy
Humidity
81%
Feels like
26°F
Dew Point
28°F
4 AM
31°F
10%
10mph
WNW
Partly Cloudy
Humidity
79%
Feels like
23°F
Dew Point
26°F
5 AM
29°F
10%
10mph
WNW
Mostly Clear
Humidity
78%
Feels like
20°F
Dew Point
23°F
6 AM
28°F
10%
9mph
WNW
Clear
Humidity
78%
Feels like
19°F
Dew Point
22°F
6:51 AM
7 AM
28°F
10%
9mph
WNW
Sunny
Humidity
78%
Feels like
20°F
Dew Point
22°F
8 AM
31°F
0%
9mph
WNW
Sunny
Humidity
75%
Feels like
23°F
Dew Point
24°F
9 AM
33°F
0%
9mph
WNW
Sunny
Humidity
67%
Feels like
26°F
Dew Point
24°F
10 AM
35°F
0%
8mph
WNW
Sunny
Humidity
64%
Feels like
29°F
Dew Point
25°F
11 AM
37°F
0%
8mph
WNW
Sunny
Humidity
63%
Feels like
31°F
Dew Point
26°F
12 PM
38°F
0%
7mph
W
Sunny
Humidity
61%
Feels like
33°F
Dew Point
26°F
1 PM
39°F
0%
7mph
W
Sunny
Humidity
59%
Feels like
34°F
Dew Point
26°F
2 PM
39°F
0%
6mph
W
Sunny
Humidity
58%
Feels like
35°F
Dew Point
26°F
3 PM
38°F
0%
6mph
W
Sunny
Humidity
60%
Feels like
33°F
Dew Point
25°F
4 PM
36°F
0%
4mph
W
Sunny
Humidity
64%
Feels like
32°F
Dew Point
25°F
4:32 PM
5 PM
34°F
0%
3mph
W
Clear
Humidity
68%
Feels like
31°F
Dew Point
24°F
6 PM
33°F
0%
2mph
W
Clear
Humidity
73%
Feels like
33°F
Dew Point
25°F
7 PM
33°F
0%
3mph
SSW
Clear
Humidity
74%
Feels like
33°F
Dew Point
25°F
8 PM
32°F
0%
3mph
SSE
Clear
Humidity
77%
Feels like
29°F
Dew Point
26°F
9 PM
31°F
0%
4mph
SE
Clear
Humidity
80%
Feels like
28°F
Dew Point
26°F
10 PM
31°F
0%
4mph
SE
Clear
Humidity
80%
Feels like
27°F
Dew Point
25°F
11 PM
30°F
0%
4mph
SSE
Clear
Humidity
84%
Feels like
25°F
Dew Point
25°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

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

Thursday's Weather Outlook

Thursday'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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