Fort Randall & Lake Francis Case

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REMAINS OF THE CHALKSTONE CHAPEL
JERRYE & ROY KLOTZ MD, CC BY-SA 3.0, via Wikimedia Commons

Today’s Forecast:

☀
95°F
Current Temperature
Clear
Station: KAGZ
Observed at: 12:15 pm
Wind: 7 mph | Humidity: 56%
⚠️
Extreme Heat Warning
Extreme Heat Warning issued July 25 at 8:34AM CDT until July 26 at 8:00PM CDT by NWS Sioux Falls SD (Expires: July 26, 2026 8:00 pm)
Show Alert Details & Instructions
Description: * WHAT...Dangerously hot conditions with heat index values up to 109 expected. * WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and south central and southeast South Dakota. * WHEN...From noon today to 8 PM CDT Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Instructions: Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.

Today:Mostly sunny, with a high near 99. Heat index values as high as 103. South southeast wind 5 to 10 mph.
Tonight:A slight chance of showers and thunderstorms after 9pm. Mostly cloudy, with a low around 76. Heat index values as high as 101. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday:A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 101. Heat index values as high as 106. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

Today’s Report:

⛵ Boating

Not Recommended
  13 /100

Not Recommended for boating. High near 98°F. Low rain risk (21%). Light wind (10 mph). Hot temperatures (high near 98°F). Slight chance of thunderstorms. Temperatures outside comfort limits (98°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Heat: Marginal weather factor
  • Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Not Recommended 12/100

⛺ Camping

Not Recommended
  5 /100

Not Recommended for camping. High near 98°F. Low rain risk (21%). Light wind (10 mph). Hot temperatures (high near 98°F). Slight chance of thunderstorms. Temperatures outside comfort limits (98°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Heat: Marginal weather factor
  • Thunderstorm: Marginal weather factor
  • Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended 5/100

🛶 Paddling

Not Recommended
  13 /100

Not Recommended for paddling. High near 98°F. Risk of rain later today (21%). Breezy winds (10 mph). Hot temperatures (high near 98°F). Slight chance of thunderstorms. Temperatures outside comfort limits (98°F).

  • Temp: Unfavorable weather factor
  • Rain: Marginal weather factor
  • Wind: Marginal weather factor
  • Heat: Marginal weather factor
  • Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Not Recommended 12/100

🐟 Fishing

Not Recommended
  12 /100

Not Recommended for fishing. High near 98°F. Low rain risk (21%). Light wind (10 mph). Hot temperatures (high near 98°F). Slight chance of thunderstorms. Temperatures outside comfort limits (98°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Heat: Marginal weather factor
  • Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Not Recommended 12/100

About Fort Randall

Fort Randall & Lake Francis Case is a Missouri River reservoir destination for dam-area views, boating, campgrounds, paddling windows, fishing, and quiet shoreline time.

Make the Most of a Fort Randall Day

Check wind and storm timing before committing to open water, and use campground, dam-area, or town stops when the lake is too rough.

Weather Tips for Fort Randall & Lake Francis Case

  • Reservoir wind, lightning, hot sun, and exposed shorelines are the main planning concerns around Fort Randall.
  • 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:

  • Pickstown
  • Fort Randall Dam
  • Lake Francis Case
  • Randall Creek Recreation Area
  • North Point Recreation Area
  • Missouri River

Plan Around the Conditions

Use the forecast to choose the best version of Fort Randall & Lake Francis Case 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 Fort Randall & Lake Francis Case

☀
95°F
Current Temperature
Clear
Station: KAGZ
Observed at: 12:15 pm
Wind: 7 mph | Humidity: 56%
Sat ⛅
99° 76°
4%
Sun ⛈
101° 75°
16%
Mon ☀
97° 73°
1%
Tue ⛈
96° 71°
15%
Wed ⛅
96° 71°
11%
Thu ⛈
94° 69°
39%
Fri ⛈
93° 68°
24%

7-Day High Temperature Trend

99° Sat 101° Sun 97° Mon 96° Tue 96° Wed 94° Thu 93° Fri

7-Day Low Temperature Trend

76° Sat 75° Sun 73° Mon 71° Tue 71° Wed 69° Thu 68° Fri

📊 7-Day Outdoor Outlook

Good Fair Poor 12 Sat 12 Sun 12 Mon 12 Tue 12 Wed 12 Thu 12 Fri
Forecast data from the National Weather Service  |  Last Updated: July 25, 2026 1:03 pm CDT