Local Forecast

Arnold, MO Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Arnold, MO.

Active Alerts 2 active

Hour-by-Hour  Current Observation

Sunday 6:00 AM CDTSunday 6:00 AM

°F °C
Regional Observations →
73°F

Fog/Mist

  • 95° / 75° High / Low
  • 73° Feels Like
  • 0% Chance of Rain

Wind

3 mph

E

UV Index

1

Low

Humidity

100%

Dew 73°F

Sun

5:39 AM · 8:29 PM

Rise · Set

Source: ST LOUIS/SPIRIT (KSUS). Slider scrubs the next 12 hours.

5-Day Outlook

Through Thursday

Local Radar →

Today

95° 75°

Mostly Sunny

Overnight: Partly Cloudy

Detailed forecast

Today

Sunny, with a high near 94. Heat index values as high as 110. South wind 2 to 7 mph.

Night

Mostly clear, with a low around 75. Heat index values as high as 107. South wind 3 to 7 mph.

Monday

96° 77°

Partly Sunny

Overnight: Clear

Detailed forecast

Monday

Sunny, with a high near 96. Heat index values as high as 109. South wind 3 to 8 mph.

Night

Clear, with a low around 76. Heat index values as high as 106. South wind 3 to 7 mph.

Tuesday

98° 77°

Sunny

Overnight: Clear

Detailed forecast

Tuesday

Sunny, with a high near 98. South wind around 6 mph.

Night

Clear, with a low around 76.

Wednesday

96° 77°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Wednesday

Sunny, with a high near 97.

Night

Mostly clear, with a low around 77.

Thursday

95° 77°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Thursday

Sunny, with a high near 96.

Night

Mostly clear, with a low around 77.

Arnold, MO Weather Analysis Tools