Spearfish, SD Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Spearfish, SD in one place.
Mostly clear. Low around 64, with temperatures rising to around 70 overnight. Southwest wind around 5 mph.
Local Weather Overview
This forecast page for Spearfish, 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: Jul 10, 2026 4:45 AM MDT.
The active forecast window currently covers Jul 10 to Jul 16, 2026 for Spearfish, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 10 to Jul 16, 2026
- Latest sync
- Jul 10, 2026 4:45 AM MDT
- Forecast office
- UNR
- Source
- NOAA / NWS
Daily Outlook
This Week in Spearfish
Sunday looks like the warmest upcoming period in Spearfish at 104 degrees F.
Overnight is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Sunday Night at about 15 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 10, 2026 4:45 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
Sunny. High near 94, with temperatures falling to around 91 in the afternoon. East wind 1 to 8 mph, with gusts as high as 17 mph.
Mostly clear. Low around 70, with temperatures rising to around 72 overnight. South wind 8 to 12 mph, with gusts as high as 23 mph.
A slight chance of rain showers between noon and 3pm, then a slight chance of showers and thunderstorms. Sunny. High near 99, with temperatures falling to around 97 in the afternoon. South wind around 7 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Mostly clear. Low around 71, with temperatures rising to around 77 overnight. South wind around 8 mph, with gusts as high as 18 mph.
Sunny, with a high near 104. Southeast wind 1 to 13 mph, with gusts as high as 22 mph.
Mostly clear, with a low around 75.
Sunny, with a high near 103.
Mostly clear, with a low around 72.
Sunny, with a high near 99.
Mostly clear, with a low around 70.
Sunny, with a high near 93.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 10
|
Mostly Clear
|
64°F |
5 mph
SW
|
|
Friday
Jul 10
|
Sunny
|
94°F |
1 to 8 mph
E
|
|
Friday Night
Jul 10
|
Mostly Clear
|
70°F |
8 to 12 mph
S
|
|
Saturday
Jul 11
|
Sunny then Slight Chance Showers And Thunderstorms
|
99°F |
7 mph
S
|
|
Saturday Night
Jul 11
|
Mostly Clear
|
71°F |
8 mph
S
|
|
Sunday
Jul 12
|
Sunny
|
104°F |
1 to 13 mph
SE
|
|
Sunday Night
Jul 12
|
Mostly Clear
|
75°F |
15 mph
S
|
|
Monday
Jul 13
|
Sunny
|
103°F |
5 to 14 mph
SE
|
|
Monday Night
Jul 13
|
Mostly Clear
|
72°F |
5 to 10 mph
SE
|
|
Tuesday
Jul 14
|
Sunny
|
99°F |
2 to 13 mph
SE
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
70°F |
6 to 13 mph
S
|
|
Wednesday
Jul 15
|
Sunny
|
93°F |
5 to 12 mph
SE
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms
|
68°F |
2 to 12 mph
SE
|
|
Thursday
Jul 16
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
2 to 8 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Spearfish.
