Bellevue WA Weather: Accurate Forecast & Seasonal Insights 2025

Bellevue, WA Weather: Accurate Forecast & Seasonal Insights 2025

Bellevue, Washington, nestled in the heart of the Pacific Northwest, offers a distinct climate shaped by its proximity to Lake Washington and the Cascade foothills. Understanding its weather patterns helps residents and visitors prepare for everything from mild spring afternoons to brisk winter mornings. This guide delivers up-to-date Bellevue weather forecasts, seasonal trends, and practical advice based on 2025 data.

Current Weather Conditions in Bellevue

As of early 2025, Bellevue enjoys a temperate climate with cool, damp winters and warm, dry summers. The average January temperature hovers around 34°F (1°C), with occasional drizzle common in the region’s rainy season. Today, the sky is partly cloudy with light winds, and humidity levels remain moderate—typical for this time of year. The city sees an average of 125 sunny days annually, with over 150 rainy days spread across fall and winter months. These conditions support lush greenery and outdoor activities year-round, weathering seasonal shifts gracefully.

Spring Weather Patterns in Bellevue, WA

Spring in Bellevue, typically starting in March, brings a gradual warming trend. Average highs rise from 48°F in March to 65°F by May, with daytime temperatures often pleasantly mild. Rainfall decreases significantly, averaging 3.5 inches monthly, allowing for ideal gardening and picnic planning. However, afternoon thunderstorms can develop during late spring, especially in April and May, driven by shifting pressure systems. Despite occasional rain, extended dry spells are common, making spring one of the most enjoyable seasons for both locals and tourists exploring the city’s parks and trails.

Summer Weather: Hot, Dry, and Perfect for Outdoor Fun

Summer in Bellevue is warm and dry, averaging highs of 72–83°F from June through August. With over 200 hours of sunshine annually, this season is ideal for outdoor events, hiking in nearby trails like Clearwater Beach, and enjoying waterfront activities on Lake Washington. While heatwaves are rare, temperatures occasionally peak above 90°F in late July or early August. Urban heat is minimal due to abundant green spaces and lake breezes, enhancing comfort. Residents often recommend wearing light layers and staying hydrated during these warm months. Summer also brings longer days, perfect for evening walks or local festivals.

Fall Weather: Cooling Down and Crisp Skies in Bellevue

Fall ushers in a noticeable cooling, with average highs dropping from 68°F in September to 48°F by November. Rainfall increases again, reaching up to 4.5 inches monthly by October, fueling vibrant fall foliage and the city’s famous leaf-peeping in parks like Arboretum. Mornings can be chilly with lows near 38°F, while afternoons remain mild, averaging 55°F. Winds pick up, especially in October, so layered clothing is advisable. This season balances warmth and coolness, offering comfortable conditions for biking, leaf raking, and seasonal cooking using fresh local produce.

Weather Trends and Climate Change in Bellevue, WA (2025 Outlook)

Recent climate data shows subtle but measurable shifts in Bellevue’s weather patterns. The average annual temperature has risen by approximately 1.2°F since 2000, consistent with regional warming trends. Rainfall remains stable, but extreme rain events are increasing slightly, with more intense downpours in winter. Lake Washington’s surface temperatures have warmed by 0.8°F over the past decade, influencing local humidity and fog frequency. Despite these changes, Bellevue maintains resilient seasonal cycles, supported by strong urban planning and green infrastructure. Long-term forecasts project continued mild winters and stable summers, though local microclimates will still drive day-to-day variations.

Practical Tips for Navigating Bellevue’s Weather in 2025

• Check the latest forecast daily using reliable sources like NOAA or local weather stations for accurate, real-time updates.
• Layer clothing in spring and fall to adapt to fluctuating temperatures.
• Use waterproof gear or light raincoats during frequent spring showers to stay comfortable.
• Plan outdoor activities on summer afternoons when temperatures peak, opting for shaded parks or lakefront spots.
• Stay informed about lake conditions and wind advisories when boating or picnicking near Lake Washington.
• Embrace seasonal fashion—light layers in summer, thermal wear in winter—to make the most of Bellevue’s weather diversity.

Bellevue’s weather, shaped by natural geography and climate trends, offers a blend of predictability and seasonal variety. Whether you’re planning a weekend hike, a riverside dinner, or a garden visit, understanding current and seasonal conditions empowers smarter decisions. Stay connected with trusted weather updates and enjoy the full spectrum of Bellevue’s climate in 2025—from crisp springs to golden summers and crisp autumns.

Take a moment today to explore the latest Bellevue weather and adjust your plans accordingly. Your perfect day outdoors starts with a clear forecast.