Rapid City, SD 14-Day Forecast
South Dakota, United States 🇺🇸
82°
Sunny right now
Today: high 97°, low 72°
Updated just now
Rapid City weather for the next 14 days
Saturday, July 18
Sunny High 100° Low 68°Precipitation
1%
· 0.0 in
Max wind
16 mph
Humidity
34%
UV index
10 - Very High
Sunrise / sunset
05:26 AM / 08:31 PM
Sunday, July 19
Sunny High 106° Low 78°Precipitation
1%
· 0.0 in
Max wind
16 mph
Humidity
24%
UV index
10 - Very High
Sunrise / sunset
05:27 AM / 08:30 PM
Monday, July 20
Sunny High 99° Low 73°Precipitation
1%
· 0.0 in
Max wind
18 mph
Humidity
29%
UV index
10 - Very High
Sunrise / sunset
05:28 AM / 08:30 PM
Tuesday, July 21
Sunny High 86° Low 65°Precipitation
17%
· 0.01 in
Max wind
11 mph
Humidity
41%
UV index
8 - Very High
Sunrise / sunset
05:29 AM / 08:29 PM
Wednesday, July 22
Patchy rain nearby High 79° Low 62°Precipitation
38%
· 0.04 in
Max wind
17 mph
Humidity
55%
UV index
7 - High
Sunrise / sunset
05:30 AM / 08:28 PM
Thursday, July 23
Sunny High 89° Low 62°Precipitation
36%
· 0.01 in
Max wind
13 mph
Humidity
48%
UV index
8 - Very High
Sunrise / sunset
05:31 AM / 08:27 PM
Friday, July 24
Sunny High 92° Low 64°Precipitation
1%
· 0.0 in
Max wind
13 mph
Humidity
42%
UV index
8 - Very High
Sunrise / sunset
05:32 AM / 08:26 PM
Saturday, July 25
Sunny High 102° Low 68°Precipitation
1%
· 0.0 in
Max wind
20 mph
Humidity
37%
UV index
9 - Very High
Sunrise / sunset
05:33 AM / 08:25 PM
Sunday, July 26
Sunny High 105° Low 74°Precipitation
57%
· 0.06 in
Max wind
14 mph
Humidity
34%
UV index
10 - Very High
Sunrise / sunset
05:34 AM / 08:24 PM
Monday, July 27
Sunny High 108° Low 78°Precipitation
1%
· 0.0 in
Max wind
15 mph
Humidity
28%
UV index
10 - Very High
Sunrise / sunset
05:35 AM / 08:23 PM
Tuesday, July 28
Sunny High 94° Low 72°Precipitation
60%
· 0.7 in
Max wind
13 mph
Humidity
48%
UV index
8 - Very High
Sunrise / sunset
05:36 AM / 08:22 PM
Wednesday, July 29
Sunny High 86° Low 67°Precipitation
1%
· 0.0 in
Max wind
23 mph
Humidity
30%
UV index
7 - High
Sunrise / sunset
05:37 AM / 08:21 PM
Thursday, July 30
Sunny High 90° Low 62°Precipitation
1%
· 0.0 in
Max wind
14 mph
Humidity
26%
UV index
8 - Very High
Sunrise / sunset
05:38 AM / 08:19 PM
Rapid City 14-day outlook: the story
The warmest day of Rapid City's 14-day outlook is Monday, July 27 with a high near 108°F (42°C); the coolest night comes Thursday, July 30, dipping to 62°F (17°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 94°F (34°C), about 8°F (4°C) above the typical July high of 86°F (30°C).
Precipitation is most likely on Sunday 26, Tuesday 28; the wettest day looks like Tuesday, July 28 with about 0.7 in (17.7 mm) expected. For the weekend, expect Saturday 100°F (38°C) and sunny / Sunday 106°F (41°C) and sunny.
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 2 of the next 14 days, peaking around Tuesday, July 28.
What will be the warmest day in Rapid City over the next 14 days?
Monday, July 27, with a forecast high near 108°F (42°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 | Humidity |
|---|---|---|---|---|---|---|
| January | 37° | 18° | 4 | 0.5 in | 7.2 h/day | 62% |
| February | 37° | 17° | 6 | 0.9 in | 8.2 h/day | 58% |
| March | 47° | 26° | 6 | 1.1 in | 9.3 h/day | 58% |
| April | 55° | 33° | 9 | 2.4 in | 10.2 h/day | 58% |
| May | 65° | 45° | 12 | 3.4 in | 10.9 h/day | 61% |
| June | 80° | 58° | 9 | 2.6 in | 13.1 h/day | 55% |
| July | 86° | 63° | 8 | 1.6 in | 13.5 h/day | 52% |
| August | 83° | 61° | 6 | 1.6 in | 12.6 h/day | 52% |
| September | 76° | 54° | 5 | 1.1 in | 10.6 h/day | 52% |
| October | 60° | 40° | 6 | 1.5 in | 8.9 h/day | 55% |
| November | 48° | 29° | 4 | 0.6 in | 7.7 h/day | 55% |
| December | 37° | 20° | 5 | 0.9 in | 6.8 h/day | 61% |
14-day forecasts nearby