Boise Weather in April
Boise in April sees moderate daytime temperatures of 17°C (63°F) and nighttime lows of 3°C (37°F). Moderate rainfall is typical, with around 34 mm (1.3 in) for the month.
Rainfall in Boise in April
Historically, approximately 10 days this month are expected to have rain, averaging 34 mm (1.3 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Boise in April
In April, Boise sees moderate temperatures, with highs of 17°C (63°F). Nights drop to around 3°C (37°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 3°C (37°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Boise in April
With approximately 283 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.If your ideal day consists of dry skies and pleasant temperatures, May, June, September and October typically offer the best circumstances for Boise.
Boise Temperature in April
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Chance of Rain
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Boise Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Boise - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Boise typically rise from around 14°C (57°F) at the start of April to approximately 18°C (64°F) by the end. Nights are cold, with lows typically ranging from 2°C (36°F) to 6°C (43°F).
Average temperatures in April
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in April
Historical weather records for Boise in April
Browse day-by-day weather records for Boise spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Boise historical weather extremes in April
The extremes listed below come from historical weather data collected in Boise from 1976 through 2026.
- The warmest day in April was on April 23, 2012, with a maximum of 33°C (91°F).
- On April 5, 2024, Boise saw its coldest April day with temperatures maxing out at 4°C (39°F).
- The lowest overnight temperature recorded in April was -7°C (19°F) (April 20, 1985).
Best Places in the United States of America in April
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).
What to Wear in Boise in April
Pleasant temperatures in April mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Pack a light rain jacket or compact umbrella for occasional showers. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Boise in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling6/10 -
Walking6/10 -
Camping5/10 -
Outdoor sports10/10
Boise 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Boise climate overview or explore weather in the United States of America.
Popular in April
Where to go in April - average daytime high across popular destinations.
Orlando
29°C (84°F) Kissimmee
29°C (84°F) Miami Beach27°C (81°F) Destin
24°C (75°F) Los Angeles20°C (68°F) New York City
16°C (61°F) Big Bear Lake15°C (59°F) 
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