Herculaneum, Missouri Weather Conditions

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Current Conditions

  • 45°
  • Clear
  • Wind: North 7 mph
  • Humidity: 49%
  • Visibility: 10.0 miles
  • Dew Point: 27°
  • Pressure: 30.06 in. +
  • Heat Index: 41

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Next 12 Hours

9  pm
12  am
3  am
6  am
9  am
Clear
Clear
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Overcast
Overcast
Partly Cloudy
Partly Cloudy
43°
38°
36°
34°
36°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Partly Cloudy
  • High: 45 °
  • Low: 27 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 47 °
  • Low: 30 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 61 °
  • Low: 41 °
  • Partly Cloudy
  • Monday
  • Clear
  • High: 65 °
  • Low: 45 °
  • Clear
  • Tuesday
  • Clear
  • High: 71 °
  • Low: 51 °
  • Clear

Forecast for Herculaneum, Missouri

Updated: 7:15 PM CDT on January 26, 2015

  • Thursday

    Partly cloudy. Lows overnight in the low 30s.

  • Thursday Night

    Partly cloudy skies. Low 33F. Winds N at 5 to 10 mph.

  • Friday

    Partly cloudy skies. High around 45F. Winds NNW at 10 to 20 mph.

  • Friday Night

    Mostly clear skies. Low 27F. Winds NE at 5 to 10 mph.

  • Saturday

    Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 47F. Winds ENE at 5 to 10 mph.

  • Saturday Night

    Clear skies. Low around 30F. Winds SE at 5 to 10 mph.

  • Sunday

    Windy with a few clouds from time to time. High 61F. Winds S at 20 to 30 mph.

  • Sunday Night

    Rain showers early with clearing later at night. Low 41F. Winds NW at 10 to 15 mph. Chance of rain 40%.

  • Monday

    Mainly sunny. High around 65F. Winds NW at 5 to 10 mph.

  • Monday Night

    A mostly clear sky. Low around 45F. Winds SSW at 5 to 10 mph.

  • Tuesday

    Sunny skies. High 71F. Winds WNW at 5 to 10 mph.

  • Tuesday Night

    Mostly clear. Low 51F. Winds light and variable.

  • Wednesday

    Sunny skies during the morning hours will give way to showers and a possible thunderstorm in the afternoon. High 73F. Winds S at 10 to 15 mph. Chance of rain 70%.

  • Wednesday Night

    Rain showers early with clearing later at night. Low 52F. Winds SW at 5 to 10 mph. Chance of rain 70%.

  • Thursday

    Partly cloudy skies. High around 70F. Winds NW at 5 to 10 mph.

  • Thursday Night

    Partly cloudy. Low 49F. Winds NE at 5 to 10 mph.

  • Friday

    Overcast with showers at times. High near 65F. Winds SSE at 10 to 15 mph. Chance of rain 40%.

  • Friday Night

    Clear skies with a few passing clouds. Low 44F. Winds SSW at 5 to 10 mph.

  • Saturday

    Cloudy with showers. High near 60F. Winds NW at 10 to 15 mph. Chance of rain 40%.

  • Saturday Night

    Partly cloudy during the evening. A few showers developing later during the night. Low 41F. Winds ESE at 5 to 10 mph. Chance of rain 30%.

  • Sunday

    Overcast with showers at times. High 61F. Winds SE at 10 to 15 mph. Chance of rain 40%.

  • Sunday Night

    Rain showers in the evening becoming a steady light rain overnight. Low near 45F. Winds SE at 5 to 10 mph. Chance of rain 60%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Herculaneum, Mott Street, Herculaneum, MO

Updated: 8:50 PM CDT

Temperature: 47.5 °F Dew Point: - Humidity: - Wind: North at - Pressure: 29.62 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: APRSWXNET Pevely MO US, Pevely, MO

Updated: 7:42 PM CDT

Temperature: 44 °F Dew Point: 33 °F Humidity: 65% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Upper Moss Hollow Road, Barnhart, MO

Updated: 8:50 PM CDT

Temperature: 44.4 °F Dew Point: 30 °F Humidity: 56% Wind: North at - Pressure: 29.46 in Hourly Precipitation: - Windchill: 44 °F Graphs

Location: On The Bluffs, Waterloo, IL

Updated: 8:53 PM CDT

Temperature: 38.8 °F Dew Point: 29 °F Humidity: 68% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: summerfield, Imperial, MO

Updated: 8:53 PM CDT

Temperature: 35.4 °F Dew Point: 33 °F Humidity: 90% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: APRSWXNET Arnold MO US, Sulphur Springs, MO

Updated: 8:35 PM CDT

Temperature: 45 °F Dew Point: 31 °F Humidity: 57% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Hillsboro, Missouri, Hillsboro, MO

Updated: 8:52 PM CDT

Temperature: 39.0 °F Dew Point: 29 °F Humidity: 66% Wind: Calm Pressure: 29.88 in Hourly Precipitation: - Windchill: 39 °F Graphs

Location: Guardian Court, Arnold, MO

Updated: 8:50 PM CDT

Temperature: 43.2 °F Dew Point: 30 °F Humidity: 59% Wind: North at - Pressure: 30.04 in Hourly Precipitation: - Windchill: 43 °F Graphs

Location: Arrowhead STL County, Saint Louis, MO

Updated: 8:49 PM CDT

Temperature: 39.4 °F Dew Point: 27 °F Humidity: 60% Wind: Calm Pressure: 30.15 in Hourly Precipitation: - Windchill: 39 °F Graphs

Location: Chesapeake on the Bluff, Columbia, IL

Updated: 8:53 PM CDT

Temperature: 42.4 °F Dew Point: 33 °F Humidity: 68% Wind: Calm Pressure: 29.44 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Arnold # 1, Arnold, MO

Updated: 8:39 PM CDT

Temperature: 40.1 °F Dew Point: 30 °F Humidity: 67% Wind: SSW at 1.1 mph Pressure: 30.13 in Hourly Precipitation: - Windchill: 40 °F Graphs

Location: Rosewood Korner, Waterloo, IL

Updated: 8:53 PM CDT

Temperature: 40.5 °F Dew Point: 30 °F Humidity: 66% Wind: Calm Pressure: 29.38 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Wynfield Terrace, St. Louis, MO

Updated: 8:53 PM CDT

Temperature: 40.3 °F Dew Point: 23 °F Humidity: 49% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Arnold, MO

Updated: 8:49 PM CDT

Temperature: 42.5 °F Dew Point: 32 °F Humidity: 67% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Arnold, Arnold, MO

Updated: 8:53 PM CDT

Temperature: 43.6 °F Dew Point: 30 °F Humidity: 59% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: ARNOLD, Arnold, MO

Updated: 8:50 PM CDT

Temperature: 44.6 °F Dew Point: - Humidity: 53% Wind: North at - Pressure: 29.41 in Hourly Precipitation: - Windchill: 45 °F Graphs

Location: Oakville, Cliffwood Trail, Oakville, MO

Updated: 8:53 PM CDT

Temperature: 39.7 °F Dew Point: 21 °F Humidity: 46% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Christopher Winds, Oakville, MO

Updated: 8:53 PM CDT

Temperature: 43.7 °F Dew Point: 30 °F Humidity: 58% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Rock Creek Terrace, High Ridge, MO

Updated: 8:53 PM CDT

Temperature: 40.5 °F Dew Point: 29 °F Humidity: 63% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Hardy Acres / AA9UC, Waterloo, IL

Updated: 8:53 PM CDT

Temperature: 41.2 °F Dew Point: 24 °F Humidity: 51% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Oakville, Cardinal Creek Subd, Oakville, MO

Updated: 8:53 PM CDT

Temperature: 38.9 °F Dew Point: 31 °F Humidity: 73% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: House Springs, House Springs, MO

Updated: 8:52 PM CDT

Temperature: 36.5 °F Dew Point: 29 °F Humidity: 73% Wind: Calm Pressure: 27.40 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Oakville, Providence Pointe, Oakville, MO

Updated: 8:53 PM CDT

Temperature: 41.7 °F Dew Point: 31 °F Humidity: 65% Wind: Calm Pressure: 30.11 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Olde Mill Estates, Byrnes Mill, MO

Updated: 8:53 PM CDT

Temperature: 43.9 °F Dew Point: 28 °F Humidity: 53% Wind: South at 1.6 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Cathedral Drive, Saint Louis, MO

Updated: 8:50 PM CDT

Temperature: 45.1 °F Dew Point: 34 °F Humidity: 64% Wind: North at - Pressure: 30.14 in Hourly Precipitation: 0.00 in Windchill: 45 °F Graphs

Location: Devall's Backyard, Waterloo, IL

Updated: 8:48 PM CDT

Temperature: 43.1 °F Dew Point: 30 °F Humidity: 60% Wind: Calm Pressure: 30.06 in Hourly Precipitation: - Windchill: 43 °F Graphs

Location: Brookton Oaks Drive, Cedar Hill, MO

Updated: 8:50 PM CDT

Temperature: 42.3 °F Dew Point: 29 °F Humidity: 60% Wind: North at - Pressure: 29.95 in Hourly Precipitation: - Windchill: 42 °F Graphs

Location: Lakeview Ridge Drive, Fenton, MO

Updated: 8:50 PM CDT

Temperature: 43.3 °F Dew Point: 34 °F Humidity: 68% Wind: North at - Pressure: 30.09 in Hourly Precipitation: - Windchill: 43 °F Graphs

Location: Gedern Village, Columbia, IL

Updated: 8:52 PM CDT

Temperature: 39.6 °F Dew Point: 30 °F Humidity: 69% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: APRSWXNET Milstadt IL US, Waterloo, IL

Updated: 8:25 PM CDT

Temperature: 40 °F Dew Point: 30 °F Humidity: 68% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Deerpath Acres Court, Saint Louis, MO

Updated: 8:50 PM CDT

Temperature: 42.1 °F Dew Point: 34 °F Humidity: 72% Wind: North at - Pressure: 30.07 in Hourly Precipitation: - Windchill: 42 °F Graphs

Location: Jefferson Barracks, Mehlville, MO

Updated: 8:53 PM CDT

Temperature: 43.0 °F Dew Point: 30 °F Humidity: 60% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: San Luis Trails, Fenton, MO

Updated: 8:53 PM CDT

Temperature: 43.6 °F Dew Point: 27 °F Humidity: 52% Wind: WNW at 1.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: BUCKLEY MEADOWS 4, Saint Louis, MO

Updated: 8:52 PM CDT

Temperature: 42.1 °F Dew Point: 29 °F Humidity: 59% Wind: Calm Pressure: 29.85 in Hourly Precipitation: - Windchill: 42 °F Graphs

Location: Hawkins/Smizer Mill, Fenton, MO

Updated: 8:53 PM CDT

Temperature: 43.2 °F Dew Point: 31 °F Humidity: 61% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Windchill: 43 °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 
629 PM CDT Thu Mar 26 2015 


Short term: (through late tonight) 
issued at 318 PM CDT Thu Mar 26 2015 


Clearing skies spread across eastern Missouri and Illinois this 
afternoon as the storm system from overnight exited off into the 
eastern Continental U.S.. the broad upper level trough that brought shortwave 
system and storms overnight will slowly shift east over the next 
24 hours, but as that occurs we will have a fleeting chance for 
some light precipitation late tonight as cold air sweeps south 
across Missouri. Some light forcing on the western side of the 
cool surface high tonight might result in some light precipitation 
across central Missouri, but otherwise expect overnight lows to 
bottom out in the upper 20s to lower 30s. 


WFO lsx 


Long term: (friday through next thursday) 
issued at 318 PM CDT Thu Mar 26 2015 


With a large upper level trough still shifting east across the 
region Friday, expectations are that the cold weather will persist 
with some of the coldest daytime highs of the week likely. 
However, the broader progressive northwest flow will keep the 
region a bit active into the weekend, and therefore will allow 
for a quick return of above normal temperatures by Sunday. 
However, between now and Sunday we will have another little 
clipper like system slide into Missouri and Illinois early 
Saturday morning. Some light precipitation looks possible across 
central into southeast Missouri, but with expected forecast 
temperatures there are concerns about precipitation type. Have 
continued to use a mix of rain and snow for the precipitation type 
as a result. 


Late in the weekend temperatures will return to more seasonally 
normal levels as the large upper level trough and cool surface 
ridge slide off to our east. Above normal temperatures will 
persist into next work with another chance for thunderstorms 
Wednesday into Thursday next week. 


WFO lsx 


&& 


Aviation: (for the 00z tafs through 00z Friday evening) 
issued at 622 PM CDT Thu Mar 26 2015 


Upper level shortwave to slide south through western MO tonight, 
bringing in an increase mainly in mid and high clouds. Kcou will 
be closer to energy and will see low end VFR cigs later this 
evening, but precipitation to remain just west of kcou. Though 
would not be surprised to see some sprinkles there. On Friday, 
will see VFR diurnal cu develop on back side of shortwave by mid 
morning across region as winds pickup from the north. Then surface 
ridge to build in, winds to lighten and cu to diminish towards end 
of forecast period. 


Specifics for kstl: 
upper level shortwave to slide south through western MO tonight, 
bringing in an increase mainly in mid and high clouds. On Friday, 
will see VFR diurnal cu develop on back side of shortwave by 15z 
Friday across region as winds pickup from the north. Then surface 
ridge to build in, winds to lighten and cu to diminish after 23z Friday. 


Byrd 
&& 


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


$$ 
Weather forecast office lsx 



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