Stephens State Forest

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Walking through the woods at Effigy Mounds

Today’s Forecast:

°F
Current Temperature
Partly Cloudy
Station: KCNC
Observed at: 12:15 pm
Wind: 5 mph | Humidity: %
⚠️
Extreme Heat Warning
Extreme Heat Warning issued July 25 at 9:57AM CDT until July 26 at 9:00PM CDT by NWS Des Moines IA (Expires: July 26, 2026 9:00 pm)
Show Alert Details & Instructions
Description: * WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 110 possible. * WHERE...Jasper, Marshall, Appanoose, Clarke, Decatur, Lucas, Marion, Monroe, and Wayne Counties. * WHEN...For the Extreme Heat Warning, from noon to 9 PM CDT Sunday. For the Extreme Heat Watch, from Sunday evening through Monday evening. * 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.
⚠️
Extreme Heat Watch
Extreme Heat Watch issued July 25 at 9:57AM CDT until July 27 at 10:00PM CDT by NWS Des Moines IA (Expires: July 27, 2026 10:00 pm)
Show Alert Details & Instructions
Description: * WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 110 possible. * WHERE...Jasper, Marshall, Appanoose, Clarke, Decatur, Lucas, Marion, Monroe, and Wayne Counties. * WHEN...For the Extreme Heat Warning, from noon to 9 PM CDT Sunday. For the Extreme Heat Watch, from Sunday evening through Monday evening. * 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.
Today:Mostly sunny, with a high near 91. Heat index values as high as 102. Southwest wind 3 to 7 mph.
Tonight:Partly cloudy. Low around 72, with temperatures rising to around 74 overnight. Heat index values as high as 103. South southwest wind around 5 mph.
Sunday:Mostly sunny, with a high near 95. Heat index values as high as 109. Southwest wind 5 to 12 mph, with gusts as high as 18 mph.

Today’s Report:

🥾 Hiking

  6 /100

Not Recommended for hiking. High near 91°F. Temperatures outside comfort limits (91°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
  • Alert: Unfavorable weather factor
  • Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended 6/100

Camping

  22 /100

Ideal conditions for camping. Comfortable temperature (high near 91°F), light wind, and clear forecast.

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
  • Alert: Unfavorable weather factor
  • Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended 20/100

🚲 Biking

  6 /100

Not Recommended for biking. High near 91°F. Temperatures outside comfort limits (91°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
  • Alert: Unfavorable weather factor
  • Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended 6/100

About Stephens State Forest

Stephens State Forest spreads across several south-central Iowa units with wooded trails, primitive camping, wildlife habitat, equestrian country, and quiet gravel-road approaches.

Make the Most of a Stephens State Forest Day

Confirm which forest unit matches your route and allow extra drive time. Wet clay, muddy roads, ticks, hunting seasons, and limited nearby shelter all reward conservative planning.

Weather Tips for Stephens State Forest

  • For Stephens State Forest, check temperature, wind, rain timing, and thunderstorm potential before choosing the day’s route.
  • If thunder is possible, complete exposed overlooks, prairie routes, golf, and event grounds early and keep shelter close.
  • Check overnight lows, wet ground, drainage, and the nearest substantial shelter before settling into camp.
  • Open-country wind and summer humidity can make biking and hiking feel harder than the mileage suggests.

Nearby Towns and Areas

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

  • Lucas
  • Chariton
  • Whitebreast Unit
  • Woodburn Unit
  • Red Haw State Park
  • Clarke County
  • Williamson Pond
  • Lake Red Rock region

Plan Around the Conditions

Use the forecast to choose the best version of a Stephens State Forest day. Match wind, storm timing, water levels, trail surfaces, road conditions, and temperature to the activity that gives your group the safest and most comfortable plan.

7-Day Forecast for Stephens State Forest

°F
Current Temperature
Partly Cloudy
Station: KCNC
Observed at: 12:15 pm
Wind: 5 mph | Humidity: %
Sat
91° 72°
0%
Sun
95° 76°
3%
Mon
96° 72°
14%
Tue
91° 68°
2%
Wed
92° 70°
5%
Thu
91° 69°
17%
Fri
90° 68°
23%

7-Day High Temperature Trend

91° Sat 95° Sun 96° Mon 91° Tue 92° Wed 91° Thu 90° Fri

7-Day Low Temperature Trend

72° Sat 76° Sun 72° Mon 68° Tue 70° Wed 69° Thu 68° Fri

📊 7-Day Outdoor Outlook

Good Fair Poor 20 Sat 12 Sun 12 Mon 20 Tue 20 Wed 12 Thu 12 Fri
Forecast data from the National Weather Service  |  Last Updated: July 25, 2026 1:03 pm CDT

Stephens State Forest Weather by Season

Winter

Winter at Stephens State Forest brings cold, wind chill, snow, and freeze-thaw ice. Shaded paths, stairs, bridges, and rural roads may stay slick after sunny areas clear. Check road and facility status before a long drive.

Spring

Spring around Stephens State Forest is changeable, with rain, muddy surfaces, rising waterways, and severe thunderstorms. Give natural-surface trails time to drain after heavy rain. Lightning, hail, and strong wind can arrive well ahead of a rain core.

Summer

Summer days at Stephens State Forest are often warm and humid, with strong sun, mosquitoes, and afternoon thunderstorm potential. Earlier starts make exposed routes and event grounds more comfortable. Ventilate tents and keep a dry shelter plan for overnight storms.

Fall

Fall is often one of the most comfortable seasons at Stephens State Forest, with lower humidity, cooler nights, and changing color. Dry spells can produce excellent trail and cycling conditions. Watch for harvest traffic on rural roads and hunting activity near public lands.

Key Climate Data Points

  • Annual average temperature: around 52–54°F based on the surrounding Iowa region.
  • Annual snowfall: generally 20–30 inches, with meaningful year-to-year variation.
  • Warmest months: June through August are typically warmest, with July often bringing the highest heat and humidity.
  • Coolest months: December through February are coldest, and January commonly has the strongest winter chill.
  • Wettest season: late spring and early summer usually brings the greatest rainfall and thunderstorm frequency.
  • Driest season: winter is normally driest, although snow, ice, and frozen ground still affect plans.
  • Best outdoor window: April through October, with fall favored for hiking and camping.