Fort Sisseton Historic State Park, SD

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Fort Sisseton State Park, in Marshall County, South Dakota: magazine, seen from the northeast.
Ammodramus, CC0, via Wikimedia Commons

Today’s Forecast:

☀
61°F
High: 69° | Low: 53°
Current Temperature
Clear
Station: KBTN
Observed at: 7:35 pm CDT on 9/27/26
Wind: 5 mph | Humidity: 59%

Tonight:Mostly cloudy, with a low around 53. East southeast wind around 8 mph.
Monday:A slight chance of rain showers after 8am. Mostly cloudy, with a high near 69. South southeast wind 9 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Monday Night:A slight chance of rain showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and midnight, then a chance of showers and thunderstorms between midnight and 1am, then a chance of showers and thunderstorms between 1am and 3am, then showers and thunderstorms. Cloudy, with a low around 59. South wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

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Today’s Report:

🥾 Hiking

Excellent
  96 /100

Excellent for hiking. High near 69°F. Low rain risk (16%). Light wind (17 mph). Slight chance of thunderstorms in the evening.

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Use Caution 44/100
Use Caution for hiking. High near 67°F. Risk of rain (53%). Light wind (12 mph).

⛺ Camping

Use Caution
  45 /100

Use Caution for camping. High near 69°F. Low rain risk (16%). Breezy winds (17 mph). Slight chance of thunderstorms.

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Marginal weather factor
  • Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Use Caution 44/100
Use Caution for camping. High near 67°F. Risk of rain (53%). Light wind (12 mph).

🎪 Outdoor Events / Activities

Use Caution
  47 /100

Use Caution for outdoor events / activities. High near 69°F. Low rain risk (16%). Breezy winds (17 mph). Slight chance of thunderstorms in the evening.

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Marginal weather factor
  • Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Not Recommended 20/100
Not Recommended for outdoor events / activities. High near 67°F. High rain probability (53%). Light wind (12 mph).

About Fort Sisseton Historic State Park

Fort Sisseton Historic State Park is a northeast South Dakota destination for historic grounds, camping, events, prairie scenery, and nearby lake-country side trips.

Make the Most of a Fort Sisseton Historic State Park Day

Plan outdoor programs, campground time, and walking routes around wind, heat, storms, and chilly shoulder-season conditions.

Weather Tips for Fort Sisseton Historic State Park

  • Prairie wind, hot sun, thunderstorm timing, and cold-season exposure are the main weather factors around Fort Sisseton.
  • If thunder is in the forecast, prioritize exposed parks, event grounds, and longer trail routes early.
  • For campground days, check overnight lows, storm timing, wet ground, and how quickly shelter is available.
  • Strong prairie wind can change comfort quickly, especially in open parks, campgrounds, and event spaces.

Nearby Towns and Areas

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

  • Lake City
  • Sisseton
  • Sica Hollow State Park
  • Roy Lake
  • Enemy Swim Lake
  • Marshall County lakes

Plan Around the Conditions

Use the forecast to choose the best version of Fort Sisseton Historic State Park 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 Sisseton Historic State Park

☀
61°F
High: 69° | Low: 53°
Current Temperature
Clear
Station: KBTN
Observed at: 7:35 pm CDT on 9/27/26
Wind: 5 mph | Humidity: 59%
Mon 🌧
69° 59°
16%
Tue ⛈
67° 53°
68%
Wed ⛅
70° 48°
8%
Thu ⛅
61° 43°
2%
Fri ☀
62° 46°
2%
Sat ⛅
61° 44°
5%
Sun ⛅
56° --°
7%

7-Day High Temperature Trend

69° Mon 67° Tue 70° Wed 61° Thu 62° Fri 61° Sat 56° Sun

7-Day Low Temperature Trend

59° Mon 53° Tue 48° Wed 43° Thu 46° Fri 44° Sat 50° Sun

📊 7-Day Outdoor Outlook

Good Fair Poor 100 Mon 21 Tue 100 Wed 100 Thu 100 Fri 100 Sat 100 Sun
Forecast data from the National Weather Service  |  Last Updated: September 28, 2026 2:09 am CDT