Newton Hills State Park

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Today’s Forecast:

72°F
Current Temperature
Cloudy
Station: KFSD
Observed at: 7:50 pm
Wind: 14 mph | Humidity: 83%
⚠️
Heat Advisory
Heat Advisory issued July 24 at 11:23AM 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...Heat index values around 105 expected. * WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and central, east central, south central, and southeast South Dakota. * WHEN...From noon Saturday to 8 PM CDT Sunday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Instructions: Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. 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.

Tonight:Mostly clear, with a low around 68. South wind 10 to 15 mph.
Saturday:Sunny, with a high near 93. Heat index values as high as 102. Southwest wind around 10 mph.
Saturday Night:A slight chance of rain showers between 10pm and midnight. Mostly cloudy, with a low around 73. Heat index values as high as 101. South wind around 10 mph. Chance of precipitation is 20%.

Today’s Report:

🥾 Hiking

  6 /100

Not Recommended for hiking. High near 93°F. Low rain risk (1%). Light wind (10 mph). Temperatures outside comfort limits (93°F).

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

Camping

  21 /100

Not Recommended for camping. High near 93°F. Low rain risk (1%). Light wind (10 mph).

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
  • Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended 18/100

🚲 Biking

  6 /100

Not Recommended for biking. High near 93°F. Low rain risk (1%). Light wind (10 mph). Temperatures outside comfort limits (93°F).

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

About Newton Hills State Park

Newton Hills State Park is a southeast South Dakota destination for wooded hills, camping, hiking, biking, wildlife watching, and quiet day trips near the Iowa border.

Make the Most of a Newton Hills State Park Day

Use dry, comfortable weather for trails and campground time. After storms, check for muddy paths, slick roots, and branches before choosing longer routes.

Weather Tips for Newton Hills State Park

  • Wooded trail moisture, bugs, summer humidity, wind on open ridges, and winter ice are the main planning details.
  • 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:

  • Canton
  • Sioux Falls
  • Big Sioux River area
  • Good Earth State Park
  • Lake Alvin Recreation Area
  • Iowa border parks

Plan Around the Conditions

Use the forecast to choose the best version of Newton Hills 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 Newton Hills State Park

72°F
Current Temperature
Cloudy
Station: KFSD
Observed at: 7:50 pm
Wind: 14 mph | Humidity: 83%
Sat
93° 73°
0%
Sun
95° 73°
3%
Mon
95° 70°
14%
Tue
91° 69°
5%
Wed
91° 70°
8%
Thu
90° 68°
28%
Fri
88° --°
9%

7-Day High Temperature Trend

93° Sat 95° Sun 95° Mon 91° Tue 91° Wed 90° Thu 88° Fri

7-Day Low Temperature Trend

73° Sat 73° Sun 70° Mon 69° Tue 70° Wed 68° Thu 50° Fri

📊 7-Day Outdoor Outlook

Good Fair Poor 20 Sat 12 Sun 12 Mon 20 Tue 20 Wed 12 Thu 20 Fri
Forecast data from the National Weather Service  |  Last Updated: July 24, 2026 8:38 pm CDT