Arnold
Weather by month
Current –

Arnold Weather in March

In Arnold, March brings moderate daytime temperatures around 14°C (57°F), with nights cooling to 3°C (37°F). Expect quite a bit of rainfall this month.

Rainfall in Arnold in March

The climate data from previous years indicates about 12 days of rain, averaging 97 mm (3.8 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Arnold in March

Temperatures in Arnold in March top out at 14°C (57°F) and drop to 3°C (37°F) overnight. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Arnold in March

Expect sunny days throughout the month, with an estimated 199 hours of sunshine. Despite the cool temperatures, the sunny skies make it a pleasant time to visit Arnold.

If you prefer dry days with pleasant temperatures, October typically offers 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.

Arnold Temperature in March

Min Temperature
3°C (37°F)
Max Temperature
14°C (57°F)
Chance of Rain
40%
Precipitation
97 mm (3.8 in)
Rainy days
12 days
Humidity
68% *
Sunshine
199 hours *
Percentage Sunshine
53% *
* Data from: St. Louis, the United States of America (26 KM, 16 Miles).

Arnold Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Arnold - and find the best time to visit.

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 Arnold 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Arnold in March

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

  • Swimming
    5/10
  • Cycling
    6/10
  • Walking
    6/10
  • Camping
    4/10
  • Outdoor sports
    9/10

Arnold 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.