10-day forecast for Rapid City, SD: 60° to 98°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
98°
Best day: Monday, August 10
65° · 0.52 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1098° / 63°0
Morning72°feels 71°
Afternoon96°feels 92°
Evening86°feels 83°
Overnight67°feels 66°
98 °
Rapid City, Monday, 10 August
Partly cloudy. High 98°, low 63°.
Pressure29.71 inHg
Wind10.8 mph SE
Humidity21%
Visibility6.2 mi
Dew point48°
Tue, 1192° / 63°0.03
Morning69°feels 69°
Afternoon90°feels 89°
Evening82°feels 82°
Overnight67°feels 67°
92 °
Rapid City, Tuesday, 11 August
Light rain. High 92°, low 63°.
Pressure29.83 inHg
Wind10.5 mph E
Humidity40%
Visibility6.2 mi
Dew point58°
Wed, 1291° / 66°0.18
Morning75°feels 75°
Afternoon88°feels 87°
Evening73°feels 72°
Overnight69°feels 69°
91 °
Rapid City, Wednesday, 12 August
Light rain. High 91°, low 66°.
Pressure29.80 inHg
Wind12.7 mph SE
Humidity34%
Visibility6.2 mi
Dew point58°
Thu, 1365° / 61°0.52
Morning63°feels 64°
Afternoon63°feels 63°
Evening63°feels 63°
Overnight63°feels 64°
65 °
Rapid City, Thursday, 13 August
Rain. High 65°, low 61°.
Pressure30.00 inHg
Wind13.6 mph SE
Humidity92%
Visibility—
Dew point61°
Fri, 1471° / 60°0.02
Morning61°feels 61°
Afternoon65°feels 65°
Evening70°feels 70°
Overnight64°feels 64°
71 °
Rapid City, Friday, 14 August
Light rain. High 71°, low 60°.
Pressure30.00 inHg
Wind12.9 mph S
Humidity84%
Visibility—
Dew point58°
Sat, 1576° / 62°0.02
Morning66°feels 67°
Afternoon76°feels 76°
Evening74°feels 74°
Overnight67°feels 66°
76 °
Rapid City, Saturday, 15 August
Light rain. High 76°, low 62°.
Pressure30.09 inHg
Wind14.2 mph N
Humidity53%
Visibility—
Dew point56°
Sun, 1686° / 63°0.01
Morning68°feels 68°
Afternoon81°feels 81°
Evening85°feels 83°
Overnight74°feels 74°
86 °
Rapid City, Sunday, 16 August
Light rain. High 86°, low 63°.
Pressure30.09 inHg
Wind15.5 mph S
Humidity45%
Visibility—
Dew point55°
Mon, 1798° / 69°0
Morning77°feels 76°
Afternoon96°feels 92°
Evening91°feels 89°
Overnight77°feels 77°
98 °
Rapid City, Monday, 17 August
Clear. High 98°, low 69°.
Pressure29.80 inHg
Wind11.3 mph S
Humidity19%
Visibility—
Dew point44°
Tue, 1895° / 75°0
Morning81°feels 79°
Afternoon94°feels 91°
Evening92°feels 89°
Overnight80°feels 79°
95 °
Rapid City, Tuesday, 18 August
Overcast. High 95°, low 75°.
Pressure29.77 inHg
Wind13.2 mph N
Humidity22%
Visibility—
Dew point47°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Rapid City, SD around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.