Arnold, Missouri Weather Conditions

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Current Conditions

  • 79°
  • Clear
  • Wind: Calm
  • Humidity: 74%
  • Visibility: 7.0 miles
  • Dew Point: 70°
  • Pressure: 30.06 in. 0

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Next 12 Hours

11  am
2  pm
5  pm
8  pm
11  pm
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
77°
85°
87°
82°
74°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Clear
  • High: 89 °
  • Low: 70 °
  • Clear
  • Monday
  • Partly Cloudy
  • High: 92 °
  • Low: 73 °
  • Partly Cloudy
  • Tuesday
  • Thunderstorm
  • High: 77 °
  • Low: 64 °
  • T-Storms
  • Wednesday
  • Chance of a Thunderstorm
  • High: 77 °
  • Low: 68 °
  • Chance of T-Storms
  • Thursday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 71 °
  • Chance of T-Storms

Forecast for Arnold, Missouri

Updated: 7:01 AM CDT on January 05, 2015

  • Sunday

    Mostly sunny. High 89F. Winds light and variable.

  • Sunday Night

    Clear skies. Low around 70F. Winds light and variable.

  • Monday

    Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. A stray shower or thunderstorm is possible. High 92F. Winds S at 10 to 15 mph.

  • Monday Night

    Partial cloudiness early, with scattered showers and thunderstorms later during the night. Low 73F. Winds SSW at 10 to 15 mph. Chance of rain 60%.

  • Tuesday

    Showers and thunderstorms. High 77F. Winds WSW at 5 to 10 mph. Chance of rain 90%.

  • Tuesday Night

    Thunderstorms likely. Low 64F. Winds NNE at 5 to 10 mph. Chance of rain 80%.

  • Wednesday

    Variable clouds with scattered thunderstorms. High 77F. Winds ESE at 5 to 10 mph. Chance of rain 50%.

  • Wednesday Night

    Scattered showers and thunderstorms. Low 68F. Winds SSE at 5 to 10 mph. Chance of rain 50%.

  • Thursday

    Partly to mostly cloudy with a chance of thunderstorms. High 86F. Winds WSW at 10 to 15 mph. Chance of rain 60%.

  • Thursday Night

    Scattered thunderstorms. Low 71F. Winds light and variable. Chance of rain 40%.

  • Friday

    Scattered showers and thunderstorms. High 88F. Winds SW at 5 to 10 mph. Chance of rain 60%.

  • Friday Night

    Partly to mostly cloudy skies with scattered thunderstorms mainly before midnight. Low 71F. Winds SSE at 5 to 10 mph. Chance of rain 40%.

  • Saturday

    Considerable clouds early. Some decrease in clouds later in the day. High 91F. Winds SW at 10 to 15 mph.

  • Saturday Night

    Scattered thunderstorms. Low 72F. Winds S at 5 to 10 mph. Chance of rain 40%.

  • Sunday

    Partly cloudy early. Scattered thunderstorms developing in the afternoon. High 91F. Winds SW at 10 to 15 mph. Chance of rain 40%.

  • Sunday Night

    Some clouds early will give way to generally clear conditions overnight. Low 73F. Winds SW at 5 to 10 mph.

  • Monday

    Mostly cloudy skies early will become partly cloudy later in the day. High 91F. Winds WSW at 5 to 10 mph.

  • Monday Night

    Scattered showers and thunderstorms. Low 71F. Winds WNW at 5 to 10 mph. Chance of rain 40%.

  • Tuesday

    Mainly sunny. High 89F. Winds NNW at 10 to 15 mph.

  • Tuesday Night

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

  • Wednesday

    Partly cloudy with afternoon showers or thunderstorms. High 87F. Winds N at 5 to 10 mph. Chance of rain 40%.

  • Wednesday Night

    Scattered thunderstorms. Low around 70F. Winds E at 5 to 10 mph. Chance of rain 40%.

Severe Weather Alert Descriptions

 Flood Warning  Statement as of 9:09 am CDT on July 5, 2015


The Flood Warning continues for
the Meramec river near Arnold
* until Friday afternoon.
* At 8:30 am Sunday the stage was 33.3 feet.
* Flood stage is 24.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast: the river is forecast to continue to fall to near 30.3 feet
Tuesday morning.

                   Fld latest 7 a.M. Forecast
location stg obs stg 07/06 07/07 07/08 07/09 07/10

Meramec river
Arnold 24.0 33.26 32.1 30.3 28.3 26.3 24.5




Lat... Lon 3851 9043 3851 9039 3845 9032 3841 9034
     3845 9043







Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Guardian Court, Arnold, MO

Updated: 9:57 AM CDT

Temperature: 82.0 °F Dew Point: 74 °F Humidity: 77% Wind: North at - Pressure: 30.05 in Hourly Precipitation: - Heat Index: 88 °F Graphs

Location: Arnold # 1, Arnold, MO

Updated: 9:51 AM CDT

Temperature: 79.9 °F Dew Point: 68 °F Humidity: 67% Wind: SSE at 3.8 mph Pressure: 30.07 in Hourly Precipitation: - Heat Index: 82 °F Graphs

Location: Arnold, MO

Updated: 9:47 AM CDT

Temperature: 75.6 °F Dew Point: 73 °F Humidity: 90% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: APRSWXNET, Sulphur Springs, MO

Updated: 9:32 AM CDT

Temperature: 75 °F Dew Point: 70 °F Humidity: 84% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Arnold, Arnold, MO

Updated: 9:47 AM CDT

Temperature: 76.9 °F Dew Point: 71 °F Humidity: 82% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: summerfield, Imperial, MO

Updated: 9:58 AM CDT

Temperature: 81.7 °F Dew Point: 74 °F Humidity: 77% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 87 °F Graphs

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

Updated: 9:58 AM CDT

Temperature: 77.4 °F Dew Point: 69 °F Humidity: 75% Wind: South at 4.3 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Saint Louis County, Saint Louis County, MO

Updated: 9:55 AM CDT

Temperature: 76.8 °F Dew Point: 71 °F Humidity: 83% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Imperial - Wellington Subdivision, Imperial, MO

Updated: 9:58 AM CDT

Temperature: 80.8 °F Dew Point: 74 °F Humidity: 79% Wind: East at 1.2 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Oakville, Cliffwood Trail, Oakville, MO

Updated: 9:58 AM CDT

Temperature: 78.8 °F Dew Point: 71 °F Humidity: 78% Wind: South at 1.6 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Oakville, Cardinal Creek Subd, Oakville, MO

Updated: 9:58 AM CDT

Temperature: 81.4 °F Dew Point: 73 °F Humidity: 75% Wind: SW at 2.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 86 °F Graphs

Location: Christopher Winds, Oakville, MO

Updated: 9:58 AM CDT

Temperature: 76.7 °F Dew Point: 71 °F Humidity: 83% Wind: SE at 1.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Lakeview Ridge Drive, Fenton, MO

Updated: 9:57 AM CDT

Temperature: 73.4 °F Dew Point: 70 °F Humidity: 89% Wind: North at - Pressure: 30.10 in Hourly Precipitation: - Heat Index: 72 °F Graphs

Location: Deerpath Acres Court, Saint Louis, MO

Updated: 9:57 AM CDT

Temperature: 79.0 °F Dew Point: 72 °F Humidity: 80% Wind: North at - Pressure: 30.08 in Hourly Precipitation: - Heat Index: 82 °F Graphs

Location: Cathedral Drive, Saint Louis, MO

Updated: 9:57 AM CDT

Temperature: 77.0 °F Dew Point: 72 °F Humidity: 84% Wind: North at - Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Rock Creek Terrace, High Ridge, MO

Updated: 9:58 AM CDT

Temperature: 76.0 °F Dew Point: 70 °F Humidity: 83% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: San Luis Trails, Fenton, MO

Updated: 9:58 AM CDT

Temperature: 78.8 °F Dew Point: 66 °F Humidity: 66% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Upper Moss Hollow Road, Barnhart, MO

Updated: 9:57 AM CDT

Temperature: 77.5 °F Dew Point: 73 °F Humidity: 87% Wind: North at - Pressure: 29.46 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: APRSWXNET, Saint Louis, MO

Updated: 9:36 AM CDT

Temperature: 78 °F Dew Point: 72 °F Humidity: 81% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

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

Updated: 9:57 AM CDT

Temperature: 79.0 °F Dew Point: 70 °F Humidity: 74% Wind: SSE at 4.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: BUCKLEY MEADOWS 4, Saint Louis, MO

Updated: 9:55 AM CDT

Temperature: 83.7 °F Dew Point: 72 °F Humidity: 68% Wind: SSE at 3.2 mph Pressure: 29.83 in Hourly Precipitation: - Heat Index: 89 °F Graphs

Location: Hawkins/Smizer Mill, Fenton, MO

Updated: 9:58 AM CDT

Temperature: 79.4 °F Dew Point: 73 °F Humidity: 81% Wind: West at 4.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Chesapeake on the Bluff, Columbia, IL

Updated: 9:56 AM CDT

Temperature: 79.5 °F Dew Point: 72 °F Humidity: 79% Wind: Calm Pressure: 29.44 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Sunset Hills, St Louis, MO

Updated: 9:47 AM CDT

Temperature: 76.5 °F Dew Point: 72 °F Humidity: 85% Wind: Calm Pressure: 30.03 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Crestwood, Crestwood, MO

Updated: 9:50 AM CDT

Temperature: 79.5 °F Dew Point: 71 °F Humidity: 76% Wind: South at 2.7 mph Pressure: 29.78 in Hourly Precipitation: - Heat Index: 83 °F Graphs

Location: South County, Affton, MO

Updated: 9:58 AM CDT

Temperature: 77.6 °F Dew Point: 71 °F Humidity: 81% Wind: South at 1.0 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Olde Mill Estates, Byrnes Mill, MO

Updated: 9:58 AM CDT

Temperature: 77.5 °F Dew Point: 73 °F Humidity: 85% Wind: West at 2.2 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: Gedern Village, Columbia, IL

Updated: 9:57 AM CDT

Temperature: 79.2 °F Dew Point: 72 °F Humidity: 79% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Kirkwood, Kirkwood, MO

Updated: 9:58 AM CDT

Temperature: 76.6 °F Dew Point: 71 °F Humidity: 82% Wind: Calm Pressure: 29.65 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Rosewood Korner, Waterloo, IL

Updated: 9:58 AM CDT

Temperature: 85.5 °F Dew Point: 68 °F Humidity: 57% Wind: South at 3.2 mph Pressure: 29.38 in Hourly Precipitation: 0.00 in Heat Index: 89 °F Graphs

Location: South Woodlawn Avenue, Saint Louis, MO

Updated: 9:57 AM CDT

Temperature: 75.6 °F Dew Point: 70 °F Humidity: 84% Wind: North at - Pressure: 29.55 in Hourly Precipitation: - Heat Index: 76 °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 
647 am CDT sun Jul 5 2015 


Short term: (through late this afternoon) 
issued at 225 am CDT sun Jul 5 2015 


Patchy fog will be with US this morning...enhanced in the St. 
Louis area by the increased particulate matter from last evenings 
Independence day celebrations. This should burn off quickly with 
another spectacular day on tap to end the Holiday weekend. 
Temperatures will warm a few more degrees over yesterday as a 
southerly wind develops. 


Cvking 


Long term: (tonight through saturday) 
issued at 225 am CDT sun Jul 5 2015 


No major changes to the forecast as cold front is still expected 
to make its way southeast into the region by Monday evening with 
chances of showers and thunderstorms steadily increasing heading 
into the overnight hours of Monday through at least Wednesday. 
Temperatures should be seasonably warm on Monday ahead of the 
front with highs in the upper 80s or lower 90s. Overcast 
conditions and rain will keep temperatures much cooler on Tuesday 
and Wednesday with highs only forecast to be in the upper 70s to 
lower 80s. Have some concern of multi-day rainfall totals 
exceeding two inches across a large portion of the County Warning Area...which 
could cause additional or prolong flooding. 


The ecwmf lingers the front across the region into next 
weekend with continued chances of storms...while the GFS lifts the 
front north of the region with temperatures climbing slightly 
above normal by next weekend. Have maintained chance probability of precipitation into the 
weekend until it is clear the front will lift north and a 
middle/upper level ridge will build into the Midwest. 


Cvking 


&& 


Aviation: (for the 12z tafs through 12z Monday morning) 
issued at 635 am CDT sun Jul 5 2015 


Specifics for kcou, kuin: early morning IFR to MVFR visibilities in 
light fog/haze should improve with diurnal mixing. Winds will 
become southerly around the back side of a departing high pressure 
center. Winds may back slightly and become more southeasterly 
between 05/21z and 06/06z before veering again and becoming 
southerly after 06/09z. 


Specifics for kstl, ksus, kcps: IFR to MVFR visibilities in light 
fog/haze (enhanced by the smoke from last night's fireworks 
across the metropolitan area) should improve this morning with diurnal 
mixing. Winds will become southerly around the back side of a 
departing high pressure center. Winds may back slightly and become 
more southeasterly between 05/21z and 06/06z before veering again 
and becoming southerly after 06/09z. 


Kanofsky 


&& 


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


$$ 


Weather forecast office lsx 






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