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Arnold, MO

84°F
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Arnold, MO Weather
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Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Sunday, August 17

Current Weather

2:01 PM

84°F
Sunny
RealFeel® 100°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel®
100°
RealFeel Shade™
90°
Max UV Index
7.8 (Very High)
Wind
ESE 3 mph
Wind Gusts
5 mph
Humidity
69%
Indoor Humidity
69% (Extremely Humid)
Dew Point
73° F
Pressure
↔ 30.01 in
Cloud Cover
7%
Visibility
10 mi
Cloud Ceiling
40000 ft

Day

8/17
95°Hi
RealFeel® 112°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 102°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
Sunny to partly cloudy, hot and humid with a thunderstorm in one or two spots this afternoon
alerts

Heat Advisory

12:00 PM Friday - 8:00 PM Monday

Max UV Index9.0 (Very High)

AccuLumen Brightness Index™9 (Very Bright)

WindNNE 4 mph

Wind Gusts8 mph

Probability of Precipitation55%

Probability of Thunderstorms33%

Precipitation0.09 in

Rain0.09 in

Hours of Precipitation1

Hours of Rain1

Cloud Cover18%

Morning

Afternoon

Night

8/17
70°Lo
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Clear and uncomfortably humid
alerts

Heat Advisory

12:00 PM Friday - 8:00 PM Monday

WindSE 5 mph

Wind Gusts12 mph

Probability of Precipitation4%

Probability of Thunderstorms1%

Precipitation0.00 in

Cloud Cover7%

Evening

Overnight

Sun & Moon

13 hrs 36 mins
Rise 6:17 AM
Set 7:53 PM
Waning Crescent
Rise 12:05 AM
Set 3:56 PM

Temperature History

8/17
High
Low
Forecast
95°
70°
Average
88°
66°
Last Year
89°
73°

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World North America United States Missouri Arnold

Weather Near Arnold:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
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