Custer State Park Weather Forecast
Custer State Park weather: 74°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Custer State Park is a state park in South Dakota. Custer State Park is known for a bison herd and the Needles Highway.
Right now it is 74°F (23°C) in Custer State Park with clear. It feels like 70°F. Today runs from 66°F to 87°F. Chance of precipitation is 13%. Sightseeing conditions score 9.2/10 - excellent - go now.
The best time to visit Custer State Park is June, July, August and September. The climate is continental. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 81°F, while January is the coldest with lows near 15°F.
The closest major airport is Denver International Airport (DEN), about 278 mi away. Nearby highlights include Mount Rushmore, Wind Cave National Park, Badlands National Park and Theodore Roosevelt National Park.
In plain terms. Today is warmer than average for August. The forecast high of 87°F is 8.8°F above the 78°F typical for this month. The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Custer State Park today at 9.6/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Weather in Custer State Park right now
Source: Open-Meteo. Updated 2:56 AM, Aug 25 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Custer State Park
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Mon, Aug 24 | 🌤️ Mainly clear | 87° / 66° | 13% | 12 mph | 7 |
| Tue, Aug 25 | 🌦️ Light rain | 77° / 62° | 19% · 0,1 in | 11 mph | 7 |
| Wed, Aug 26 | 🌦️ Light drizzle | 78° / 56° | 16% · 0,0 in | 11 mph | 7 |
| Thu, Aug 27 | 🌦️ Light drizzle | 82° / 62° | 11% · 0,0 in | 12 mph | 7 |
| Fri, Aug 28 | ☁️ Overcast | 88° / 63° | 11% | 15 mph | 7 |
| Sat, Aug 29 | ☁️ Overcast | 85° / 63° | 15% | 16 mph | 7 |
| Sun, Aug 30 | ☁️ Overcast | 87° / 62° | 15% | 14 mph | 6 |
| Mon, Aug 31 | ☁️ Overcast | 87° / 66° | 16% | 18 mph | 6 |
| Tue, Sep 1 | ☁️ Overcast | 90° / 58° | 19% | 19 mph | 7 |
| Wed, Sep 2 | ☁️ Overcast | 82° / 65° | 19% | 24 mph | 6 |
| Thu, Sep 3 | ☁️ Overcast | 85° / 57° | 17% | 20 mph | 7 |
| Fri, Sep 4 | 🌤️ Mainly clear | 76° / 59° | 31% | 13 mph | 7 |
| Sat, Sep 5 | 🌦️ Light drizzle | 62° / 49° | 36% · 0,0 in | 17 mph | 3 |
| Sun, Sep 6 | ⛅ Partly cloudy | 74° / 43° | 35% | 12 mph | 7 |
| Mon, Sep 7 | ☁️ Overcast | 83° / 53° | 17% | 13 mph | 7 |
| Tue, Sep 8 | ⛅ Partly cloudy | 86° / 62° | 15% | 22 mph | 7 |
Climate in Custer State Park month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 33° | 15° | 0,4 in | ★★☆☆☆ |
| February | 39° | 19° | 0,8 in | ★★☆☆☆ |
| March | 48° | 28° | 0,9 in | ★★★☆☆ |
| April | 52° | 32° | 2,5 in | ★★★☆☆ |
| May | 62° | 41° | 4,6 in | ★★★☆☆ |
| June | 73° | 51° | 2,7 in | ★★★★☆ |
| July | 81° | 59° | 3,2 in | ★★★★☆ |
| August | 78° | 57° | 1,8 in | ★★★★☆ |
| September | 73° | 52° | 1,6 in | ★★★★☆ |
| October | 58° | 39° | 2,0 in | ★★★☆☆ |
| November | 47° | 29° | 0,6 in | ★★★☆☆ |
| December | 43° | 25° | 0,5 in | ★★★☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
Weather map for Custer State Park
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Custer State Park
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Custer State Park
Go in June, July, August and September. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
Explore Custer State Park
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Custer State Park?
Custer State Park is a state park in South Dakota. Its coordinates are 43.7667, -103.4167. It lies in North America.
What is the weather like in Custer State Park right now?
It is currently 74°F (23°C) with clear. Humidity is 40% and wind is 9 mph.
When is the best time to visit Custer State Park?
June, July, August and September offer the most comfortable conditions in Custer State Park, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Custer State Park in?
Custer State Park observes America/Denver (UTC-06:00). The local time is 2:56 AM.
What is the nearest airport to Custer State Park?
The closest airports are Denver International Airport (DEN), 278 mi away.
What are the top things to do in Custer State Park?
Popular options include Mount Rushmore, Wind Cave National Park, Badlands National Park and Theodore Roosevelt National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (state-parks) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 25, 2026 at 2:56 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
