Rapid City, SD 14-Day Forecast
South Dakota, United States 🇺🇸
88°
Sunny right now
Today: high 89°, low 51°
Updated 6 hours ago
Rapid City weather for the next 14 days
Tuesday, October 6
Sunny High 84° Low 58°Precipitation
1%
· 0.0 in
Max wind
15 mph
Humidity
20%
UV index
4 - Moderate
Sunrise / sunset
06:56 AM / 06:25 PM
Wednesday, October 7
Sunny High 78° Low 53°Precipitation
3%
· 0.0 in
Max wind
10 mph
Humidity
25%
UV index
5 - Moderate
Sunrise / sunset
06:57 AM / 06:23 PM
Thursday, October 8
Overcast High 68° Low 47°Precipitation
8%
· 0.0 in
Max wind
9 mph
Humidity
50%
UV index
5 - Moderate
Sunrise / sunset
06:59 AM / 06:21 PM
Friday, October 9
Overcast High 73° Low 44°Precipitation
16%
· 0.0 in
Max wind
17 mph
Humidity
69%
UV index
6 - High
Sunrise / sunset
07:00 AM / 06:20 PM
Saturday, October 10
Sunny High 85° Low 56°Precipitation
3%
· 0.0 in
Max wind
18 mph
Humidity
25%
UV index
7 - High
Sunrise / sunset
07:01 AM / 06:18 PM
Sunday, October 11
Overcast High 56° Low 47°Precipitation
13%
· 0.0 in
Max wind
15 mph
Humidity
60%
UV index
4 - Moderate
Sunrise / sunset
07:02 AM / 06:16 PM
Monday, October 12
Patchy rain nearby High 51° Low 45°Precipitation
85%
· 0.27 in
Max wind
12 mph
Humidity
84%
UV index
3 - Moderate
Sunrise / sunset
07:04 AM / 06:14 PM
Tuesday, October 13
Sunny High 48° Low 34°Precipitation
8%
· 0.0 in
Max wind
21 mph
Humidity
64%
UV index
3 - Moderate
Sunrise / sunset
07:05 AM / 06:13 PM
Wednesday, October 14
Sunny High 48° Low 28°Precipitation
6%
· 0.0 in
Max wind
12 mph
Humidity
63%
UV index
3 - Moderate
Sunrise / sunset
07:06 AM / 06:11 PM
Thursday, October 15
Sunny High 57° Low 30°Precipitation
2%
· 0.0 in
Max wind
9 mph
Humidity
50%
UV index
4 - Moderate
Sunrise / sunset
07:07 AM / 06:09 PM
Friday, October 16
Sunny High 63° Low 36°Precipitation
1%
· 0.0 in
Max wind
6 mph
Humidity
39%
UV index
5 - Moderate
Sunrise / sunset
07:08 AM / 06:07 PM
Saturday, October 17
Sunny High 64° Low 41°Precipitation
1%
· 0.0 in
Max wind
7 mph
Humidity
37%
UV index
5 - Moderate
Sunrise / sunset
07:10 AM / 06:06 PM
Sunday, October 18
Sunny High 64° Low 39°Precipitation
2%
· 0.0 in
Max wind
7 mph
Humidity
43%
UV index
5 - Moderate
Sunrise / sunset
07:11 AM / 06:04 PM
Rapid City 14-day outlook: the story
The warmest day of Rapid City's 14-day outlook is Monday, October 5 with a high near 89°F (32°C); the coolest night comes Wednesday, October 14, dipping to 28°F (-2°C). The trend points cooler: week two runs about 20°F below week one. Highs over the next two weeks average 76°F (24°C), about 16°F (9°C) above the typical October high of 60°F (16°C).
Precipitation is most likely on Monday 12; the wettest day looks like Monday, October 12 with about 0.26 in (6.7 mm) expected. For the weekend, expect Saturday 85°F (29°C) and sunny / Sunday 56°F (13°C) and overcast.
For typical conditions month by month, see the Rapid City climate & average temperatures guide.
Rapid City forecast questions
Will it rain in Rapid City this week?
The forecast currently shows meaningful precipitation chances on 1 of the next 14 days, peaking around Monday, October 12.
What will be the warmest day in Rapid City over the next 14 days?
Monday, October 5, with a forecast high near 89°F (32°C).
How accurate is a 14-day forecast for Rapid City?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Rapid City by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 37° | 18° | 4 | 0.5 in | 7.2 h/day | 9.2 h | 12% | 62% |
| February | 37° | 17° | 6 | 0.9 in | 8.2 h/day | 10.4 h | 23% | 58% |
| March | 47° | 26° | 6 | 1.1 in | 9.3 h/day | 11.8 h | 19% | 58% |
| April | 55° | 33° | 9 | 2.4 in | 10.2 h/day | 13.4 h | 31% | 58% |
| May | 65° | 45° | 12 | 3.4 in | 10.9 h/day | 14.7 h | 39% | 61% |
| June | 80° | 58° | 9 | 2.6 in | 13.1 h/day | 15.5 h | 30% | 55% |
| July | 86° | 63° | 8 | 1.6 in | 13.5 h/day | 15.2 h | 26% | 52% |
| August | 83° | 61° | 6 | 1.6 in | 12.6 h/day | 14.0 h | 20% | 52% |
| September | 76° | 54° | 5 | 1.1 in | 10.6 h/day | 12.4 h | 17% | 52% |
| October | 60° | 40° | 6 | 1.5 in | 8.9 h/day | 10.9 h | 19% | 55% |
| November | 48° | 29° | 4 | 0.6 in | 7.7 h/day | 9.6 h | 13% | 55% |
| December | 37° | 20° | 5 | 0.9 in | 6.8 h/day | 8.9 h | 16% | 61% |
14-day forecasts nearby