Sioux City & Missouri River, IA
Today’s Forecast:
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Today’s Report:
Biking
Fair for biking. High near 72°F. Low rain risk (16%). Slight chance of thunderstorms.
- Temp: Favorable conditions
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Marginal weather factor
Hiking
Fair for hiking. High near 72°F. Low rain risk (16%). Slight chance of thunderstorms.
- Temp: Favorable conditions
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Marginal weather factor
Outdoor Events / Activities
Fair for outdoor events / activities. High near 72°F. Low rain risk (16%). Slight chance of thunderstorms.
- Temp: Favorable conditions
- Rain: Favorable conditions
- Wind: Favorable conditions
- Thunderstorm: Marginal weather factor
About Sioux City & Missouri River
Sioux City & Missouri River covers riverfront paths, metro parks, nearby Loess Hills, Stone State Park access, nature centers, and tri-state outdoor events.
Make the Most of a Sioux City & Missouri River Day
Use sheltered urban routes on very windy days and bluff trails when surfaces are dry. Missouri and Big Sioux river levels can affect low access points even when upland parks remain usable.
Weather Tips for Sioux City & Missouri River
- For Sioux City & Missouri River, 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.
- After steady rain, favor paved paths or well-drained routes until natural surfaces recover.
- 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:
- Stone State Park
- Sergeant Bluff
- South Sioux City
- Dakota City
- Dorothy Pecaut Nature Center
- Big Sioux River
- Missouri River
- Adams Nature Preserve
Plan Around the Conditions
Use the forecast to choose the best version of a Sioux City & Missouri River 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 Sioux City & Missouri River
Sioux City & Missouri River Weather by Season
Winter
Winter at Sioux City & Missouri River 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 Sioux City & Missouri River 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 Sioux City & Missouri River are often warm and humid, with strong sun, mosquitoes, and afternoon thunderstorm potential. Earlier starts make exposed routes and event grounds more comfortable. Carry water and use shade breaks during the hottest part of the day.
Fall
Fall is often one of the most comfortable seasons at Sioux City & Missouri River, 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 52–53°F based on the surrounding Iowa region.
- Annual snowfall: generally 25–30 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 especially comfortable.