Rapid City, South Dakota Weather Forecast
Today in Rapid City: mostly sunny with a high near 56°F and a low around 38°F. Rain chance 2%. Best chance of rain is Sunday at 81%. Highs run 38 to 58°F through Friday.
Forecast updated 2:05 AM MDT, Oct 24
Active Weather Alerts
7-Day Forecast for Rapid City
Today 10/24
56°38°
Sun 10/25
81%
42°36°
Mon 10/26
81%
38°34°
Tue 10/27
19%
54°33°
Wed 10/28
58°38°
Thu 10/29
56°36°
Fri 10/30
14%
55°39°
Next 24 Hours
| Now | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | Sun12 AM | 1 AM | 2 AM | 3 AM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sky |  | | | | | |  | | | | | | | | | | | | | | | |  | |
| Temp | 44° | 42° | 40° | 38° | 38° | 42° | 44° | 46° | 48° | 49° | 50° | 50° | 50° | 48° | 46° | 43° | 43° | 42° | 42° | 41° | 41° | 39° | 39° | 39° |
| Rain | 1% | 1% | 1% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 1% | 1% | 5% |
| Wind | NNW 22 | NNW 21 | NNW 20 | NNW 21 | NNW 20 | NNW 18 | NNW 18 | NNW 16 | NNW 15 | N 13 | N 12 | N 11 | NNE 8 | NNE 6 | NE 3 | ENE 3 | SSE 3 | SSW 4 | S 3 | S 3 | S 3 | S 3 | S 3 | S 3 |
Growing Conditions
Growing degree days
3,112
since Apr 1, base 50°F
Rain, last 30 days
0.22 in
model analysis
Rain, year to date
13.16 in
since Jan 1
2-inch soil temperature
64°F
yesterday, daily average
Reference ET, last 7 days
0.96 in
FAO-56 grass reference
Through Oct 23. Season totals use model analysis for this point and update every morning.
Soil, ET and spray tools for Rapid City →
Current Stats & Observations
NWS Forecast
About Rapid City Weather
Rapid City sits at about 3,376 feet above sea level in Pennington County, South Dakota. About 92,664 people live in the Rapid City area. Official forecasts and warnings for the area come from the National Weather Service UNR office, and the nearest NEXRAD radar site is KUDX. The city is in USDA plant hardiness zone 5a, where the coldest winter night typically falls between -20 to -15°F. Over the past ten years the last spring freeze has come around May 5 and the first fall freeze around Oct 14.