Chamberlain & Missouri River

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Rest stop on Interstate 90 in Chamberlain, South Dakota

Today’s Forecast:

🌧
66°F
Current Temperature
Light Rain
Station: K9V9
Observed at: 3:55 pm
Wind: 10 mph | Humidity: 100%

This Afternoon:Rain showers likely before 4pm, then showers and thunderstorms. Cloudy, with a high near 72. South southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Tonight:Showers and thunderstorms likely before 11pm. Mostly cloudy. Low around 61, with temperatures rising to around 65 overnight. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday:Mostly sunny, with a high near 93. South wind 5 to 10 mph.

Today’s Report:

Boating

  14 /100

Not Recommended for boating. High near 71°F. High rain probability (81%). Breezy winds (15 mph). Thunderstorms forecast or possible.

  • Temp: Favorable conditions
  • Rain: Unfavorable weather factor
  • Wind: Marginal weather factor
  • Thunderstorm: Unfavorable weather factor
Tomorrow's Outlook:
Good 84/100

Camping

  15 /100

Not Recommended for camping. High near 71°F. High rain probability (81%). Breezy winds (15 mph). Thunderstorms forecast or possible.

  • Temp: Favorable conditions
  • Rain: Unfavorable weather factor
  • Wind: Marginal weather factor
  • Thunderstorm: Unfavorable weather factor
Tomorrow's Outlook:
Good 73/100

🎪 Outdoor Events / Activities

  15 /100

Not Recommended for outdoor events / activities. High near 71°F. High rain probability (81%). Breezy winds (15 mph). Thunderstorms forecast or possible.

  • Temp: Favorable conditions
  • Rain: Unfavorable weather factor
  • Wind: Marginal weather factor
  • Thunderstorm: Unfavorable weather factor
Tomorrow's Outlook:
Not Recommended 20/100

🐟 Fishing

  13 /100

Not Recommended for fishing. High near 71°F. High rain probability (81%). Breezy winds (15 mph). Thunderstorms forecast or possible.

  • Temp: Favorable conditions
  • Rain: Unfavorable weather factor
  • Wind: Marginal weather factor
  • Thunderstorm: Unfavorable weather factor
Tomorrow's Outlook:
Good 78/100

About Chamberlain

Chamberlain & Missouri River is a central river-town destination for boating, fishing, campgrounds, river overlooks, road-trip stops, and family travel days.

Make the Most of a Chamberlain & Missouri River Day

Build the day around river wind, storm timing, and how exposed you want the plan to be. Calm periods favor boating and shoreline time, while windy or stormy windows are better for town stops.

Weather Tips for Chamberlain & Missouri River

  • Missouri River wind, summer heat, lightning, and open shoreline exposure can change comfort and safety quickly.
  • Wind, waves, current, and lightning should guide water plans more than sunshine alone.
  • For campground days, check overnight lows, storm timing, wet ground, and how quickly shelter is available.
  • Have a shore-based backup ready when wind, waves, or storms make open water less comfortable.

Nearby Towns and Areas

This page can also be useful when planning outdoor time near:

  • Oacoma
  • Missouri River
  • Lake Francis Case
  • American Creek Recreation Area
  • Dignity of Earth and Sky
  • I-90 river crossing

Plan Around the Conditions

Use the forecast to choose the best version of Chamberlain & Missouri River rather than forcing one itinerary. Match wind, rain timing, temperature, storms, water conditions, trail surfaces, and road conditions to the activity that gives your group the most comfortable day.

7-Day Forecast for Chamberlain & Missouri River

🌧
66°F
Current Temperature
Light Rain
Station: K9V9
Observed at: 3:55 pm
Wind: 10 mph | Humidity: 100%
Thu
72° 61°
81%
Fri
93° 69°
1%
Sat
103° 75°
0%
Sun
105° 73°
17%
Mon
102° 71°
2%
Tue
96° 69°
11%
Wed
96° 68°
14%

7-Day High Temperature Trend

72° Thu 93° Fri 103° Sat 105° Sun 102° Mon 96° Tue 96° Wed

7-Day Low Temperature Trend

61° Thu 69° Fri 75° Sat 73° Sun 71° Mon 69° Tue 68° Wed

📊 7-Day Outdoor Outlook

Good Fair Poor 22 Thu 20 Fri 12 Sat 5 Sun 12 Mon 12 Tue 12 Wed
Forecast data from the National Weather Service  |  Last Updated: July 23, 2026 4:38 pm CDT