New Underwood, SD Weather Forecast
Local 7-day forecast
Light Rain Likely
Track current conditions, temperature changes, wind, and the full daily outlook for New Underwood, SD in one place.
Rain likely. Cloudy, with a low around 44. Northwest wind 3 to 13 mph. Chance of precipitation is 60%.
Local Weather Overview
This forecast page for New Underwood, SD is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 15, 2026 2:03 AM MDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for New Underwood, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 2:03 AM MDT
- Forecast office
- UNR
- Source
- NOAA / NWS
Daily Outlook
This Week in New Underwood
Saturday looks like the warmest upcoming period in New Underwood at 77 degrees F.
Thursday Night is the coolest period ahead with temperatures near 30 degrees F.
The strongest winds are forecast for Thursday at about 17 to 35 mph NW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Oct 15, 2026 2:03 AM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- UNR
- Radar station
- KUDX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly sunny. High near 54, with temperatures falling to around 49 in the afternoon. Northwest wind 17 to 35 mph, with gusts as high as 53 mph.
Widespread frost after 4am. Mostly clear. Low around 30, with temperatures rising to around 32 overnight. Northwest wind 14 to 32 mph, with gusts as high as 51 mph.
Widespread frost before 9am. Sunny. High near 55, with temperatures falling to around 51 in the afternoon. Southwest wind 5 to 20 mph, with gusts as high as 33 mph.
Clear, with a low around 37. South wind 13 to 21 mph, with gusts as high as 29 mph.
Sunny. High near 77, with temperatures falling to around 70 in the afternoon. South wind 3 to 10 mph.
Mostly clear, with a low around 44.
Sunny, with a high near 69.
Mostly clear, with a low around 39.
Sunny, with a high near 70.
Clear, with a low around 43.
Sunny, with a high near 75.
Mostly clear, with a low around 45.
Mostly sunny, with a high near 65.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 15
|
Light Rain Likely
|
44°F |
3 to 13 mph
NW
|
|
Thursday
Oct 15
|
Mostly Sunny
|
54°F |
17 to 35 mph
NW
|
|
Thursday Night
Oct 15
|
Mostly Clear then Widespread Frost
|
30°F |
14 to 32 mph
NW
|
|
Friday
Oct 16
|
Widespread Frost then Sunny
|
55°F |
5 to 20 mph
SW
|
|
Friday Night
Oct 16
|
Clear
|
37°F |
13 to 21 mph
S
|
|
Saturday
Oct 17
|
Sunny
|
77°F |
3 to 10 mph
S
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
44°F |
5 to 10 mph
SW
|
|
Sunday
Oct 18
|
Sunny
|
69°F |
7 to 21 mph
N
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
39°F |
7 mph
W
|
|
Monday
Oct 19
|
Sunny
|
70°F |
6 to 17 mph
S
|
|
Monday Night
Oct 19
|
Clear
|
43°F |
12 mph
S
|
|
Tuesday
Oct 20
|
Sunny
|
75°F |
8 to 14 mph
SE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
45°F |
9 to 13 mph
NW
|
|
Wednesday
Oct 21
|
Mostly Sunny
|
65°F |
8 to 14 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around New Underwood.