Fort Stevenson State Park, ND

Today’s Forecast:

Today’s Report:

About Fort Stevenson State Park

Fort Stevenson State Park centers the day on a specific shoreline access point, where marina operations, campground exposure, and lake wind may matter more than the regional forecast.

Planning an Outing at Fort Stevenson State Park

Confirm marina hours, ramp condition, campground notices, wind direction, and winter trail reports before choosing the day’s activity.

Weather Tips for Fort Stevenson State Park

• Large open water can build steep waves quickly; compare wind speed and direction with the intended shore and route.
• For winter travel, use current local ice reports and avoid pressure ridges, current, bridges, structures, and snow-hidden weak spots.
• Confirm snow depth, grooming, ice, road treatment, and facility operations before relying on a winter activity.
• Watch for severe thunderstorms, hail, smoke, and sudden wind shifts; keep a sheltered alternative available.
• Use the latest notice for Garrison and the exact trailhead, ramp, campground, or facility you plan to use.

Nearby Towns and Areas

Use this forecast as practical context for outdoor plans near:

• Garrison
• Garrison Bay Marina
• de Trobriand Marina
• Fort Stevenson Guardhouse
• Garrison Dam
• Riverdale
• Lake Audubon

Adjust the Day to the Forecast

Choose the route, launch, campsite, fishing window, tee time, or event plan with the widest margin for wind and storms.

7-Day Forecast for Fort Stevenson State Park

Fort Stevenson State Park Weather by Season

Winter

Snow cover varies across open prairie and wooded terrain, while blowing snow can erase visibility quickly. Carry winter emergency supplies and confirm seasonal access. Check conditions near Garrison because local access can change first.

Spring

Spring warmth arrives unevenly, with ice, saturated trails, and floodwater lingering in shaded or low terrain. River and lake pages require current observations. Check conditions near Garrison Bay Marina because local access can change first.

Summer

Warm afternoons can turn windy or stormy quickly across open terrain. Watch radar and keep drinking water, sun protection, and a shorter escape route. Check conditions near de Trobriand Marina because local access can change first.

Fall

Fall color and mild afternoons can coincide with morning ice, strong wind, and the first snow. Bright clothing and extra layers are practical. Check conditions near Fort Stevenson Guardhouse because local access can change first.

Key Climate Data Points

• Annual average temperature: roughly 42–44°F near the north-central reservoir.
• Annual snowfall: commonly 30–45 inches, although wind redistributes snow and creates deep drifts beside exposed roads.
• Warmest months: July is usually warmest; exposed badlands and prairie heat faster than wooded or lakeshore settings.
• Coolest months: January is generally coldest, with wind chill often more important than air temperature.
• Wettest season: Late spring and early summer usually bring the most precipitation, including severe thunderstorms.
• Driest season: Winter is often driest by liquid precipitation, although drifting snow can dominate access.
• Best outdoor window: Late spring through early fall for warm-season activities; winter destinations require verified ice, snow, roads, and operations.