Local Forecast

Arnold, MO Weather Forecast & Alerts

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

Active Alerts 1 active

Hour-by-Hour  Current Observation

Saturday 5:20 PM CDTSaturday 5:20 PM

°F °C
Regional Observations →
93°F

Mostly Clear

  • 93° / 75° High / Low
  • 100° Feels Like
  • 0% Chance of Rain

Wind

9 mph

W

UV Index

6

High

Humidity

50%

Dew 71°F

Sun

5:51 AM · 8:23 PM

Rise · Set

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

5-Day Outlook

Through Wednesday

Local Radar →

Today

93° 75°

Mostly Cloudy

Overnight: Isolated T-storm

Detailed forecast

Today

Sunny, with a high near 95. Heat index values as high as 107. West wind around 8 mph.

Night

A slight chance of showers and thunderstorms between 1am and 4am. Partly cloudy, with a low around 75. Heat index values as high as 103. West wind 2 to 7 mph. Chance of precipitation is 20%.

Sunday

91° 73°

Thunderstorms Likely

Overnight: Mostly Cloudy

Detailed forecast

Sunday

A chance of showers and thunderstorms between 11am and 3pm, then showers and thunderstorms likely. Mostly sunny. High near 91, with temperatures falling to around 87 in the afternoon. Heat index values as high as 100. North wind around 3 mph. Chance of precipitation is 70%.

Night

A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. East wind 0 to 3 mph. Chance of precipitation is 40%.

Monday

95° 77°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Monday

Mostly sunny, with a high near 93. South wind around 2 mph.

Night

Mostly clear, with a low around 77.

Tuesday

96° 69°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Tuesday

Sunny, with a high near 96.

Night

Mostly clear, with a low around 69.

Wednesday

86° 66°

Mostly Sunny

Overnight: Mostly Clear

Detailed forecast

Wednesday

Sunny, with a high near 86.

Night

Mostly clear, with a low around 65.

Arnold, MO Weather Analysis Tools