Riverside State Park
Today’s Forecast:
Show Alert Details & Instructions
Today’s Report:
Biking
Not Recommended for biking. High near 91°F. Breezy winds (17 mph). Temperatures outside comfort limits (91°F).
- Temp: Unfavorable weather factor
- Rain: Favorable conditions
- Wind: Marginal weather factor
- Thunderstorm: Favorable conditions
Paddling
Use Caution for paddling. High near 91°F. Breezy winds (17 mph).
- Temp: Marginal weather factor
- Rain: Favorable conditions
- Wind: Marginal weather factor
- Thunderstorm: Favorable conditions
Camping
Use Caution for camping. High near 91°F. Breezy winds (17 mph).
- Temp: Marginal weather factor
- Rain: Favorable conditions
- Wind: Marginal weather factor
- Thunderstorm: Favorable conditions
About Riverside State Park
Riverside State Park is a Washington destination for a large Spokane River park with canyon scenery, paddling, campgrounds, bike routes, and multi-use trails.
Make the Most of a Riverside State Park Day
Check river flow and skill requirements before paddling. Heat, smoke, mud, snow, and campground fire rules shape land-based plans.
Weather Tips for Riverside State Park
- Check heat, wind, wildfire smoke, and fire restrictions as closely as rain because exposed eastern routes offer limited shade.
- Cold water, waves, current, wind, and lightning should guide water plans more than sunshine alone.
- Check overnight lows, wet ground, fire rules, drainage, and the nearest substantial shelter before settling into camp.
- Summer smoke, winter access, shoulder-season closures, and shorter fall daylight can matter even during an otherwise mild forecast.
Nearby Towns and Areas
This page can also be useful when planning outdoor time near:
- Bowl and Pitcher
- Nine Mile Recreation Area
- Spokane River
- Centennial Trail
- Deep Creek Canyon
- Seven Mile
- Long Lake
Plan Around the Conditions
Use the forecast to choose the best version of a Riverside State Park day. Match wind, precipitation, smoke, water conditions, trail surfaces, road access, temperature, and daylight to the activity that gives your group the safest and most comfortable plan.
7-Day Forecast for Riverside State Park
Riverside State Park Weather by Season
Winter
Winter at Riverside State Park brings cold air, periodic snow, ice, and strong wind. Roads and exposed trails can stay slick even during otherwise dry stretches.
Spring
Spring around Riverside State Park brings changing conditions, rising rivers, wet trails, and lingering mountain snow. Cold water from rain and snowmelt remains a major planning factor. Mountain and eastern thunderstorms become increasingly possible later in the season.
Summer
Summer at Riverside State Park is usually the driest and most dependable season, but wildfire smoke, fire restrictions, heat, and afternoon thunderstorms can interrupt plans. Use calmer mornings for boating or paddling and keep a shore-based backup. Dry vegetation makes local fire rules especially important.
Fall
Fall at Riverside State Park brings cooler temperatures, shorter daylight, changing color, and the return of wetter weather west of the Cascades. Water cools faster than the air, increasing cold-water consequences. Check seasonal facility hours and allow extra time on busy event or salmon-viewing weekends.
Key Climate Data Points
- Annual average temperature: around 47–49°F, using the relevant local or regional elevation context.
- Annual snowfall: generally around 40–55 inches, with substantial year-to-year and elevation variation.
- Warmest months: July and August are normally warmest.
- Coolest months: December and January are typically coolest.
- Wettest season: late fall through winter.
- Driest season: July and August.
- Best outdoor window: May through October for paddling, biking, and camping.