Boise
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Boise Weather in March

March in Boise brings moderate temperatures, with daytime highs of 13°C (55°F) and nights around 1°C (34°F). Expect around 39 mm (1.5 in) of rainfall during the month.

Rainfall in Boise in March

Historically, approximately 14 days this month are expected to have rain, averaging 39 mm (1.5 in). A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Boise in March

March in Boise sees highs of 13°C (55°F) and lows of 1°C (34°F) overnight. Conditions are often most pleasant around the middle of the day. Nights drop to 1°C (34°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Boise in March

The month enjoys around 240 hours of sunshine, creating mostly sunny days despite the cool temperatures.

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 March

Min Temperature
1°C (34°F)
Max Temperature
13°C (55°F)
Chance of Rain
46%
Precipitation
39 mm (1.5 in)
Rainy days
14 days
Humidity
59%
Sunshine
240 hours
Percentage Sunshine
64%

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 10°C (50°F) at the start of March to approximately 13°C (55°F) by the end. Nights are cold, with lows typically ranging from 0°C (32°F) to 3°C (37°F).

Average temperatures in March

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 March

Historical weather records for Boise in March

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 March

Our historical data for Boise spans 1976 to 2026, revealing these weather extremes.

  • The warmest day in March was on March 20, 2026, with a maximum of 28°C (82°F).
  • Boise registered its coldest March night on March 4, 1976, with temperatures dropping to -11°C (12°F).

Best Places in the United States of America in March

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 March →

perfect weather
pleasant
tolerable
unpleasant
poor

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 March

The weather can swing between comfortable and chilly in March, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Light rain is possible, so consider bringing a small umbrella or rain jacket. 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 March

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    4/10
  • Cycling
    6/10
  • Walking
    6/10
  • Camping
    5/10
  • Outdoor sports
    6/10

Boise 3-Day Forecast

Popular in March

Where to go in March - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.