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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Scene Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
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Wyoming’s weather is famously fickle, with big temperature swings and sudden storms possible any month. The live forecast above shows the current conditions, but for planning a trip, aim for July through September for the most reliable warm, dry days, or late March for lower crowds and lingering snow in the mountains.
What’s the best time to visit Wyoming for good weather?
July and August offer the most stable weather, with daytime highs in the 70s and 80s °F (low to mid-20s °C) across most of the state. September stays pleasant but brings cooler nights and fewer tourists. If you’re considering weather Wyoming March, expect winter conditions in the mountains (still ski season) and muddy, variable spring weather on the plains. For weather in Wyoming tomorrow, always check the live forecast above, as afternoon thunderstorms can develop fast in summer.
What should I pack for a Wyoming trip?
Layers are essential year-round. In summer, bring a light jacket and rain shell for sudden afternoon storms. For March or early spring, pack a warm winter coat, boots, and gloves—especially if heading to Yellowstone or the Tetons. A sun hat and sunscreen are smart even in winter, as the high altitude intensifies UV. For detailed current conditions, AccuWeather Wyoming data can help refine your packing list, but the live forecast above is your most reliable source.
Does Wyoming get tornadoes?
Yes, but they are less common than in the central Plains. Most occur in late spring and early summer on the eastern plains. Wyoming averages about 10 tornadoes per year, typically weak and short-lived.
Is Wyoming humid in summer?
No. Wyoming has a semi-arid climate, so summer humidity is low. Even on hot days, the air feels dry, making the heat more tolerable. This also means temperatures drop sharply after sunset, so a jacket is useful.
What’s the weather like in Yellowstone in May?
May is unpredictable: highs range from 10–18°C (50–65°F), with rain or snow possible. Many roads open mid-month, but trails can be muddy. Pack waterproof boots and layers. The live forecast above is essential for last-minute planning.
Sources
For more Canadian travel weather, see our Canada weather hub, or check conditions in Calgary or Edmonton for a prairie comparison. For severe weather alerts, visit our weather warning page.