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Feet of snow to bury California mountains through next week. Get the latest forecast. Chevron right

Arnold, MO

55°F
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Arnold

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Arnold, MO Weather
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February 17 - March 18

Tue 2/17

61° /56°
1%
Mostly cloudy; breezy this afternoon

RealFeel®59°

RealFeel Shade™57°

Max UV Index2.0 (Low)

WindS 12 mph

Wed 2/18

75° /49°
4%
Breezy in the morning; otherwise, warmer with clouds yielding to sun

RealFeel®75°

RealFeel Shade™72°

Max UV Index4.0 (Moderate)

WindSW 12 mph

Thu 2/19

74° /32°
55%
Very warm with increasing cloudiness, becoming breezy in the afternoon with a thunderstorm in spots; thunderstorms can bring hail and damaging winds

RealFeel®72°

RealFeel Shade™70°

Max UV Index4.0 (Moderate)

WindSSW 13 mph

Fri 2/20

48° /29°
9%
Breezy in the morning; otherwise, cooler with times of clouds and sun

RealFeel®47°

RealFeel Shade™42°

Max UV Index4.0 (Moderate)

WindW 12 mph

Sat 2/21

38° /24°
25%
Colder with times of clouds and sun

RealFeel®32°

RealFeel Shade™29°

Max UV Index2.0 (Low)

WindNW 12 mph

Sun 2/22

34° /17°
4%
Partly sunny, becoming windier and cold

RealFeel®21°

RealFeel Shade™19°

Max UV Index4.0 (Moderate)

WindNW 17 mph

Mon 2/23

36° /21°
4%
Partly sunny and cold

RealFeel®40°

RealFeel Shade™36°

Max UV Index4.0 (Moderate)

WindNNW 6 mph

Tue 2/24

49° /36°
0%
Not as cold with clouds and sun

RealFeel®46°

RealFeel Shade™43°

Max UV Index3.0 (Moderate)

WindSSE 9 mph

Wed 2/25

59° /42°
15%
Sun through high clouds

RealFeel®55°

RealFeel Shade™54°

Max UV Index2.0 (Low)

WindSSW 15 mph

Thu 2/26

52° /33°
75%
Rain

RealFeel®43°

RealFeel Shade™43°

Max UV Index1.0 (Low)

WindN 12 mph

Fri 2/27

54° /34°
65%
Windy and cooler with rain at times

RealFeel®47°

RealFeel Shade™45°

Max UV Index2.0 (Low)

WindSSW 21 mph

Sat 2/28

50° /30°
0%
Plenty of sun

RealFeel®47°

RealFeel Shade™44°

Max UV Index4.0 (Moderate)

WindWNW 12 mph

Sun 3/1

51° /36°
0%
Plenty of sunshine

RealFeel®47°

RealFeel Shade™44°

Max UV Index4.0 (Moderate)

WindS 12 mph

Mon 3/2

50° /30°
25%
Mostly cloudy

RealFeel®47°

RealFeel Shade™47°

Max UV Index2.0 (Low)

WindESE 7 mph

Tue 3/3

53° /30°
25%
After a cloudy start, sun returns

RealFeel®50°

RealFeel Shade™47°

Max UV Index2.0 (Low)

WindWNW 12 mph

Wed 3/4

46° /28°
25%
Increasing cloudiness

RealFeel®47°

RealFeel Shade™47°

Max UV Index2.0 (Low)

WindSW 4 mph

Thu 3/5

49° /29°
10%
Mostly sunny

RealFeel®44°

RealFeel Shade™41°

Max UV Index4.0 (Moderate)

WindW 9 mph

Fri 3/6

45° /25°
20%
Mostly sunny

RealFeel®41°

RealFeel Shade™37°

Max UV Index4.0 (Moderate)

WindWNW 12 mph

Sat 3/7

44° /31°
20%
Mostly sunny

RealFeel®37°

RealFeel Shade™33°

Max UV Index5.0 (Moderate)

WindWNW 14 mph

Sun 3/8

44° /25°
25%
Intervals of clouds and sunshine

RealFeel®45°

RealFeel Shade™43°

Max UV Index3.0 (Moderate)

WindWNW 7 mph

Mon 3/9

45° /27°
25%
Considerable cloudiness

RealFeel®48°

RealFeel Shade™48°

Max UV Index1.0 (Low)

WindSSE 2 mph

Tue 3/10

45° /25°
20%
Plenty of sunshine

RealFeel®51°

RealFeel Shade™43°

Max UV Index5.0 (Moderate)

WindENE 6 mph

Wed 3/11

46° /26°
5%
Sunny

RealFeel®42°

RealFeel Shade™38°

Max UV Index5.0 (Moderate)

WindE 10 mph

Thu 3/12

44° /26°
5%
Plenty of sunshine

RealFeel®42°

RealFeel Shade™37°

Max UV Index5.0 (Moderate)

WindE 10 mph

Fri 3/13

46° /27°
25%
Cloudy

RealFeel®45°

RealFeel Shade™45°

Max UV Index1.0 (Low)

WindE 7 mph

Sat 3/14

46° /31°
68%
Cloudy; a shower around after temperatures rise above freezing in the morning, then periods of rain in the afternoon

RealFeel®42°

RealFeel Shade™42°

Max UV Index1.0 (Low)

WindN 5 mph

Sun 3/15

47° /27°
20%
Mostly sunny

RealFeel®54°

RealFeel Shade™48°

Max UV Index5.0 (Moderate)

WindW 4 mph

Mon 3/16

54° /37°
25%
Cloudy

RealFeel®52°

RealFeel Shade™52°

Max UV Index1.0 (Low)

WindSSE 7 mph

Tue 3/17

58° /39°
55%
Cloudy with a touch of rain

RealFeel®54°

RealFeel Shade™54°

Max UV Index1.0 (Low)

WindW 12 mph

Wed 3/18

51° /34°
20%
Mostly sunny

RealFeel®54°

RealFeel Shade™49°

Max UV Index5.0 (Moderate)

WindW 7 mph

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World North America United States Missouri Arnold

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  • O'Fallon, MO
  • St. Charles, MO
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