Arnold, Missouri Weather Conditions

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Current Conditions

  • 93°
  • Clear
  • Wind: North 8 mph
  • Humidity: 27%
  • Visibility: 10.0 miles
  • Dew Point: 54°
  • Pressure: 30.13 in. -
  • Heat Index: 91

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Next 12 Hours

2  pm
5  pm
8  pm
11  pm
2  am
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
90°
89°
82°
75°
72°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Clear
  • High: 93 °
  • Low: 68 °
  • Clear
  • Friday
  • Clear
  • High: 92 °
  • Low: 69 °
  • Clear
  • Saturday
  • Clear
  • High: 91 °
  • Low: 69 °
  • Clear
  • Sunday
  • Chance of a Thunderstorm
  • High: 90 °
  • Low: 70 °
  • Chance of T-Storms
  • Monday
  • Clear
  • High: 92 °
  • Low: 70 °
  • Clear

Forecast for Arnold, Missouri

Updated: 1:01 PM CDT on January 30, 2015

  • Thursday

    Plenty of sunshine. High near 90F. Winds N at 5 to 10 mph.

  • Thursday Night

    A clear sky. Low 68F. Winds light and variable.

  • Friday

    Mainly sunny. High 92F. Winds NW at 5 to 10 mph.

  • Friday Night

    Partly cloudy. A stray shower or thunderstorm is possible. Low 69F. Winds light and variable.

  • Saturday

    Sunny skies. High 91F. Winds light and variable.

  • Saturday Night

    Partial cloudiness early, with scattered showers and thunderstorms later during the night. Low 69F. Winds light and variable. Chance of rain 50%.

  • Sunday

    Partly cloudy with afternoon showers or thunderstorms. High around 90F. Winds S at 5 to 10 mph. Chance of rain 40%.

  • Sunday Night

    Mostly clear skies. Low near 70F. Winds light and variable.

  • Monday

    Mostly sunny skies. High 92F. Winds W at 5 to 10 mph.

  • Monday Night

    Mainly clear skies. Low near 70F. Winds N at 5 to 10 mph.

  • Tuesday

    Partly cloudy in the morning followed by scattered thunderstorms in the afternoon. High near 90F. Winds NE at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Variably cloudy with scattered thunderstorms. Low 67F. Winds ENE at 5 to 10 mph. Chance of rain 50%.

  • Wednesday

    Scattered thunderstorms. High 83F. Winds SE at 5 to 10 mph. Chance of rain 50%.

  • Wednesday Night

    A few clouds. Low 66F. Winds NNE at 5 to 10 mph.

  • Thursday

    Mostly sunny skies. High around 85F. Winds E at 5 to 10 mph.

  • Thursday Night

    A few clouds from time to time. Low 66F. Winds light and variable.

  • Friday

    Sunshine and clouds mixed. High around 85F. Winds E at 5 to 10 mph.

  • Friday Night

    Partly cloudy. Low 67F. Winds E at 5 to 10 mph.

  • Saturday

    Partly to mostly cloudy. High 86F. Winds E at 5 to 10 mph.

  • Saturday Night

    Partly cloudy skies early followed by mostly cloudy skies and a few showers later at night. Low 67F. Winds ESE at 5 to 10 mph. Chance of rain 30%.

  • Sunday

    Isolated thunderstorms in the morning, then partly cloudy late. High near 85F. Winds E at 5 to 10 mph. Chance of rain 30%.

  • Sunday Night

    Scattered clouds with the possibility of an isolated thunderstorm developing overnight. Low 68F. Winds E at 5 to 10 mph. Chance of rain 30%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Guardian Court, Arnold, MO

Updated: 3:10 PM CDT

Temperature: 92.1 °F Dew Point: 66 °F Humidity: 41% Wind: North at - Pressure: 30.11 in Hourly Precipitation: - Heat Index: 94 °F Graphs

Location: Arnold # 1, Arnold, MO

Updated: 3:08 PM CDT

Temperature: 96.8 °F Dew Point: 63 °F Humidity: 33% Wind: East at 1.6 mph Pressure: 30.14 in Hourly Precipitation: - Heat Index: 99 °F Graphs

Location: Arnold, MO

Updated: 2:58 PM CDT

Temperature: 88.8 °F Dew Point: 68 °F Humidity: 51% Wind: West at 4.0 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 93 °F Graphs

Location: APRSWXNET, Sulphur Springs, MO

Updated: 2:36 PM CDT

Temperature: 88 °F Dew Point: 62 °F Humidity: 42% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: Arnold, Arnold, MO

Updated: 3:06 PM CDT

Temperature: 87.9 °F Dew Point: 61 °F Humidity: 41% Wind: West at 6.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: summerfield, Imperial, MO

Updated: 3:10 PM CDT

Temperature: 92.1 °F Dew Point: 60 °F Humidity: 34% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: 6735 Wynfield Terrace Dr., St. Louis, MO

Updated: 3:09 PM CDT

Temperature: 98.4 °F Dew Point: 46 °F Humidity: 17% Wind: SSW at 2.7 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Saint Louis County, Saint Louis County, MO

Updated: 3:10 PM CDT

Temperature: 91.1 °F Dew Point: 62 °F Humidity: 38% Wind: Calm Pressure: 30.13 in Hourly Precipitation: 0.00 in Heat Index: 92 °F Graphs

Location: Arrowhead STL County, Saint Louis, MO

Updated: 3:08 PM CDT

Temperature: 104.5 °F Dew Point: 60 °F Humidity: 24% Wind: East at 3.7 mph Pressure: 30.20 in Hourly Precipitation: - Heat Index: 106 °F Graphs

Location: Oakville, Providence Pointe, Oakville, MO

Updated: 3:10 PM CDT

Temperature: 94.8 °F Dew Point: 60 °F Humidity: 31% Wind: WSW at 1.3 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Heat Index: 95 °F Graphs

Location: Imperial - Wellington Subdivision, Imperial, MO

Updated: 3:11 PM CDT

Temperature: 91.0 °F Dew Point: 69 °F Humidity: 48% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 96 °F Graphs

Location: Oakville, Cliffwood Trail, Oakville, MO

Updated: 3:10 PM CDT

Temperature: 91.2 °F Dew Point: 56 °F Humidity: 30% Wind: WNW at 3.8 mph Pressure: 30.21 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Oakville, Cardinal Creek Subd, Oakville, MO

Updated: 3:10 PM CDT

Temperature: 91.9 °F Dew Point: 64 °F Humidity: 40% Wind: ESE at 2.0 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 94 °F Graphs

Location: Boardwalk Place, Saint Louis, MO

Updated: 3:11 PM CDT

Temperature: 97.5 °F Dew Point: 55 °F Humidity: 24% Wind: Calm Pressure: 29.97 in Hourly Precipitation: - Heat Index: 96 °F Graphs

Location: Lakeview Ridge Drive, Fenton, MO

Updated: 3:10 PM CDT

Temperature: 87.6 °F Dew Point: 65 °F Humidity: 46% Wind: North at - Pressure: 30.18 in Hourly Precipitation: - Heat Index: 89 °F Graphs

Location: Deerpath Acres Court, Saint Louis, MO

Updated: 3:10 PM CDT

Temperature: 94.5 °F Dew Point: 66 °F Humidity: 38% Wind: North at - Pressure: 30.15 in Hourly Precipitation: - Heat Index: 97 °F Graphs

Location: Cathedral Drive, Saint Louis, MO

Updated: 3:10 PM CDT

Temperature: 88.7 °F Dew Point: 63 °F Humidity: 42% Wind: North at - Pressure: 30.21 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Rock Creek Terrace, High Ridge, MO

Updated: 3:10 PM CDT

Temperature: 88.8 °F Dew Point: 61 °F Humidity: 40% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: San Luis Trails, Fenton, MO

Updated: 3:10 PM CDT

Temperature: 89.3 °F Dew Point: 56 °F Humidity: 32% Wind: SSW at 4.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 88 °F Graphs

Location: APRSWXNET, Saint Louis, MO

Updated: 2:38 PM CDT

Temperature: 90 °F Dew Point: 60 °F Humidity: 37% Wind: Calm Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: High Ridge Fire District House #1, High Ridge, MO

Updated: 2:59 PM CDT

Temperature: 88.2 °F Dew Point: 58 °F Humidity: 36% Wind: WNW at 4.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: APRSWXNET, Fenton, MO

Updated: 2:49 PM CDT

Temperature: 87 °F Dew Point: 58 °F Humidity: 38% Wind: North at 5 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Hawkins/Smizer Mill, Fenton, MO

Updated: 3:11 PM CDT

Temperature: 93.8 °F Dew Point: 68 °F Humidity: 43% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Chesapeake on the Bluff, Columbia, IL

Updated: 3:10 PM CDT

Temperature: 91.9 °F Dew Point: 54 °F Humidity: 28% Wind: Calm Pressure: 29.53 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Sunset Hills, St Louis, MO

Updated: 3:04 PM CDT

Temperature: 89.9 °F Dew Point: 60 °F Humidity: 37% Wind: Calm Pressure: 30.10 in Hourly Precipitation: - Heat Index: 90 °F Graphs

Location: Crestwood, Crestwood, MO

Updated: 2:55 PM CDT

Temperature: 91.4 °F Dew Point: 61 °F Humidity: 37% Wind: West at 1.7 mph Pressure: 29.85 in Hourly Precipitation: - Heat Index: 92 °F Graphs

Location: South County, Affton, MO

Updated: 3:10 PM CDT

Temperature: 88.3 °F Dew Point: 63 °F Humidity: 43% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: Olde Mill Estates, Byrnes Mill, MO

Updated: 3:10 PM CDT

Temperature: 88.3 °F Dew Point: 57 °F Humidity: 35% Wind: West at 5.4 mph Pressure: 30.31 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

Location: Gedern Village, Columbia, IL

Updated: 3:07 PM CDT

Temperature: 90.5 °F Dew Point: 61 °F Humidity: 38% Wind: NNW at 3.0 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 91 °F Graphs

Location: Sweetbriar Lane, Kirkwood, MO

Updated: 3:10 PM CDT

Temperature: 86.7 °F Dew Point: 63 °F Humidity: 44% Wind: North at - Pressure: 30.02 in Hourly Precipitation: - Heat Index: 87 °F Graphs

Location: Kirkwood, Kirkwood, MO

Updated: 3:10 PM CDT

Temperature: 90.3 °F Dew Point: 59 °F Humidity: 35% Wind: Calm Pressure: 29.73 in Hourly Precipitation: 0.00 in Heat Index: 90 °F Graphs

Location: Rosewood Korner, Waterloo, IL

Updated: 3:04 PM CDT

Temperature: 96.1 °F Dew Point: 60 °F Humidity: 30% Wind: NNW at 3.7 mph Pressure: 30.10 in Hourly Precipitation: - Heat Index: 96 °F Graphs

Location: South Woodlawn Avenue, Saint Louis, MO

Updated: 3:11 PM CDT

Temperature: 86.5 °F Dew Point: 65 °F Humidity: 48% Wind: North at - Pressure: 29.64 in Hourly Precipitation: - Heat Index: 88 °F Graphs

Location: Crest Ave. Kirkwood MO, St. Louis, MO

Updated: 3:10 PM CDT

Temperature: 90.7 °F Dew Point: 62 °F Humidity: 39% Wind: SW at 1.7 mph Pressure: 30.08 in Hourly Precipitation: - Heat Index: 91 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion...updated aviation 
National Weather Service St Louis MO 
1239 PM CDT Thursday Jul 30 2015 


Short term: (through this afternoon) 
issued at 323 am CDT Thursday Jul 30 2015 


High pressure has oozed into the area in the wake of the cold 
front that passed through the middle Mississippi Valley yesterday, and 
early this morning the axis of the surface ridge extends from the 
Central Plains into western Missouri. While the air mass is a bit 
cooler...the most noticeable change has been in dewpoints...which 
have dropped 10 to 15 degrees from their steamy levels this time 
yesterday morning. 


The high will have a firm grip on our weather today, with lots of 
sunshine and rather comfortable levels of humidity for late July. 
Highs will be near seasonal averages...primarily in the 85 to 90 
degree range. 


Truett 


Long term: (tonight through wednesday) 
issued at 323 am CDT Thursday Jul 30 2015 


The surface ridge building into the region today will already be S of 
the area by middle-day Friday. This will return the region to southwesterly flow 
briefly ahead of the next cold front. Have trended slightly warmer Friday 
over temperatures for today because of this. Forcing associated with this 
fnt is rather weak with northwesterly 850mb flow ahead of the fnt. Therefore, 
do not anticipate much in the way of convection with this fnt. 
However, with warm temperatures and dewpoint pooling along/ahead of the 
fnt, a few thunderstorms and rain are possible. Precipitation chances are better with the 
next cold front Sat night into sun and possibly into next week. 


While models are in fairly good agreement through Sat, differences 
greatly increase in the extend. Have therefore kept probability of precipitation lower due to 
the uncertainty. Kept temperatures trending slightly warmer than a 
compromise among model guidance. 


Tilly 


&& 


Aviation: (for the 18z tafs through 18z Friday afternoon) 
issued at 1235 PM CDT Thursday Jul 30 2015 


VFR forecast through the prd. High pressure in control. Mainly clear 
skies with light west/northwest winds drng the day potentially bcmng 
lght/vrb overnight. 


Specifics for kstl: 


VFR forecast through the prd with mainly clear skies and a west/northwest wind at or below 
10kts. 


2% 


&& 


Preliminary point temperatures/pops: 
Saint Louis 90 70 91 72 / 0 0 10 20 
Quincy 88 65 88 67 / 0 0 20 20 
Columbia 89 66 90 69 / 0 0 10 20 
Jefferson City 90 64 92 69 / 0 0 10 20 
Salem 88 66 89 66 / 0 0 10 20 
Farmington 87 63 91 66 / 0 0 5 10 


&& 


Lsx watches/warnings/advisories: 
MO...none. 
Illinois...none. 
&& 


$$ 


Weather forecast office lsx 






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