Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
April in Bismarck brings moderate temperatures, with daytime highs of 13°C (55°F) and nights around -1°C (30°F). Expect around 42 mm (1.7 in) of snow/rainfall during the month.
If you prefer dry days with pleasant temperatures, May, June, July, August and September typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Pick a month to see the average temperature, rainfall and sunshine in Bismarck - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Bismarck typically rise from around 9°C (48°F) at the start of April to approximately 15°C (59°F) by the end. Nights are very cold, with lows typically ranging from -4°C (25°F) to 3°C (37°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Bismarck spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
According to our 50 years of weather records for Bismarck, the following extremes were recorded between 1976 and 2026.
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in April →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pack for changing conditions in Bismarck in April. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Bismarck climate overview or explore weather in the United States of America.
Where to go in April - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
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