Herculaneum, Missouri Weather Conditions

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Current Conditions

  • 76°
  • Partly Cloudy
  • Wind: NW 9 mph
  • Humidity: 48%
  • Visibility: 10.0 miles
  • Dew Point: 55°
  • Pressure: 30.14 in. 0

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Next 12 Hours

1  pm
4  pm
7  pm
10  pm
1  am
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
Partly Cloudy
Partly Cloudy
77°
79°
79°
70°
61°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Partly Cloudy
  • High: 81 °
  • Low: 59 °
  • Partly Cloudy
  • Wednesday
  • Chance of a Thunderstorm
  • High: 82 °
  • Low: 61 °
  • Chance of a Thunderstorm
  • Thursday
  • Chance of a Thunderstorm
  • High: 82 °
  • Low: 63 °
  • Chance of a Thunderstorm
  • Friday
  • Chance of a Thunderstorm
  • High: 84 °
  • Low: 57 °
  • Chance of T-Storms
  • Saturday
  • Clear
  • High: 86 °
  • Low: 61 °
  • Clear

Forecast for Herculaneum, Missouri

Updated: 10:00 AM CDT on July 29, 2014

  • Tuesday

    Clear in the morning, then partly cloudy. High of 81F. Winds from the WNW at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy. Fog overnight. Low of 59F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 82F. Winds less than 5 mph. Chance of rain 20%.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 61F. Winds less than 5 mph.

  • Thursday

    Clear with a chance of a thunderstorm and a chance of rain in the morning, then partly cloudy with a chance of a thunderstorm and a chance of rain. High of 82F. Winds less than 5 mph. Chance of rain 20%.

  • Thursday Night

    Partly cloudy with a chance of a thunderstorm and rain in the evening, then clear. Low of 63F. Winds less than 5 mph. Chance of rain 20%.

  • Friday

    Partly cloudy with a chance of a thunderstorm and rain. High of 84F. Winds less than 5 mph. Chance of rain 50%.

  • Friday Night

    Clear. Low of 57F. Winds less than 5 mph.

  • Saturday

    Clear. High of 86F. Winds from the North at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 61F. Winds from the NNE at 5 to 10 mph.

  • Sunday

    Clear. High of 86F. Winds from the NNE at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 61F. Winds less than 5 mph.

  • Monday

    Clear. High of 88F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 66F. Winds from the SSE at 5 to 10 mph.

  • Tuesday

    Clear. High of 86F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Fog overnight. Low of 64F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm. High of 86F. Winds less than 5 mph. Chance of rain 40%.

  • Wednesday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 59F. Winds less than 5 mph. Chance of rain 50%.

  • Thursday

    Partly cloudy with a chance of a thunderstorm. High of 81F. Winds less than 5 mph. Chance of rain 40%.

  • Thursday Night

    Clear. Fog overnight. Low of 63F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 81F. Winds less than 5 mph.

  • Friday Night

    Clear. Fog overnight. Low of 63F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Sandy Creek Winery, Pevely, MO

Updated: 11:34 AM CDT

Temperature: 76.0 °F Dew Point: 60 °F Humidity: 58% Wind: WSW at 4.0 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: MesoWest MAEYS1 IL US UPR, Maeystown, IL

Updated: 10:45 AM CDT

Temperature: 70 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Imperial - Wellington Subdivision, Imperial, MO

Updated: 11:46 AM CDT

Temperature: 76.4 °F Dew Point: 60 °F Humidity: 57% Wind: NNE at 4.0 mph Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: On The Bluffs, Waterloo, IL

Updated: 11:46 AM CDT

Temperature: 74.9 °F Dew Point: 56 °F Humidity: 52% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: summerfield, Imperial, MO

Updated: 11:46 AM CDT

Temperature: 76.3 °F Dew Point: 59 °F Humidity: 55% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Imperial, MO

Updated: 11:46 AM CDT

Temperature: 72.5 °F Dew Point: 58 °F Humidity: 60% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Chesapeake on the Bluff, Columbia, IL

Updated: 11:45 AM CDT

Temperature: 79.0 °F Dew Point: 58 °F Humidity: 49% Wind: North at 3.4 mph Pressure: 30.18 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Wynfield Terrace, St. Louis, MO

Updated: 11:46 AM CDT

Temperature: 76.3 °F Dew Point: 51 °F Humidity: 41% Wind: South at 2.2 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Arnold, MO

Updated: 11:36 AM CDT

Temperature: 73.1 °F Dew Point: 61 °F Humidity: 67% Wind: SW at 1.0 mph Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Arnold, Arnold, MO

Updated: 11:46 AM CDT

Temperature: 74.9 °F Dew Point: 55 °F Humidity: 50% Wind: NNW at 1.0 mph Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Oakville, Cliffwood Trail, Oakville, MO

Updated: 11:46 AM CDT

Temperature: 70.3 °F Dew Point: 53 °F Humidity: 54% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Christopher Winds, Oakville, MO

Updated: 11:45 AM CDT

Temperature: 72.8 °F Dew Point: 55 °F Humidity: 53% Wind: ENE at 1.6 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Rock Creek Terrace, High Ridge, MO

Updated: 11:46 AM CDT

Temperature: 74.5 °F Dew Point: 56 °F Humidity: 52% Wind: NE at 1.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Hardy Acres / AA9UC, Waterloo, IL

Updated: 11:44 AM CDT

Temperature: 72.7 °F Dew Point: 41 °F Humidity: 32% Wind: NW at 1.1 mph Pressure: 30.18 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Oakville, Cardinal Creek Subd, Oakville, MO

Updated: 11:46 AM CDT

Temperature: 80.0 °F Dew Point: 58 °F Humidity: 47% Wind: NNW at 1.0 mph Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Saint Louis County, Saint Louis County, MO

Updated: 11:45 AM CDT

Temperature: 75.3 °F Dew Point: 56 °F Humidity: 52% Wind: West at 1.0 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Ste Genevieve county, Festus, MO

Updated: 11:46 AM CDT

Temperature: 74.4 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Oakville, Providence Pointe, Oakville, MO

Updated: 11:46 AM CDT

Temperature: 74.8 °F Dew Point: 56 °F Humidity: 51% Wind: Calm Pressure: 30.16 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Olde Mill Estates, Byrnes Mill, MO

Updated: 11:46 AM CDT

Temperature: 75.7 °F Dew Point: 54 °F Humidity: 47% Wind: NW at 8.3 mph Pressure: 30.24 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Devall's Backyard, Waterloo, IL

Updated: 11:33 AM CDT

Temperature: 80.5 °F Dew Point: 53 °F Humidity: 39% Wind: North at 1.7 mph Pressure: 30.15 in Hourly Precipitation: - Heat Index: 80 °F Graphs

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

Updated: 11:42 AM CDT

Temperature: 75.1 °F Dew Point: 55 °F Humidity: 50% Wind: NE at 5.0 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Gedern Village, Columbia, IL

Updated: 11:44 AM CDT

Temperature: 76.6 °F Dew Point: 56 °F Humidity: 49% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: San Luis Trails, Fenton, MO

Updated: 11:46 AM CDT

Temperature: 75.8 °F Dew Point: 51 °F Humidity: 42% Wind: NNW at 4.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: South St. Louis County, St. Louis, MO

Updated: 11:45 AM CDT

Temperature: 81.1 °F Dew Point: - Humidity: 41% Wind: NE at 3.0 mph Pressure: 29.49 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Hawkins/Smizer Mill, Fenton, MO

Updated: 11:46 AM CDT

Temperature: 78.8 °F Dew Point: 61 °F Humidity: 54% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: St. Joseph Hill, Pacific, MO

Updated: 11:36 AM CDT

Temperature: 77.2 °F Dew Point: 57 °F Humidity: 50% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: St. Louis, MO

Updated: 11:46 AM CDT

Temperature: 74.9 °F Dew Point: 57 °F Humidity: 54% Wind: South at 2.0 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Gerry's Pool, Prairie Du Rocher, IL

Updated: 11:40 AM CDT

Temperature: 78.1 °F Dew Point: 62 °F Humidity: 57% Wind: West at 2.2 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: South County, Affton, MO

Updated: 11:46 AM CDT

Temperature: 74.6 °F Dew Point: 58 °F Humidity: 57% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Sunset Hills, St Louis, MO

Updated: 11:38 AM CDT

Temperature: 75.8 °F Dew Point: 57 °F Humidity: 52% Wind: Calm Pressure: 30.12 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Crestwood, Crestwood, MO

Updated: 11:35 AM CDT

Temperature: 77.0 °F Dew Point: 56 °F Humidity: 48% Wind: WNW at 3.2 mph Pressure: 29.86 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: Big Bend and I-270, Kirkwood, MO

Updated: 11:45 AM CDT

Temperature: 77.0 °F Dew Point: 57 °F Humidity: 50% Wind: NW at 1.0 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 79 °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 
621 am CDT Tue Jul 29 2014 


Short term: (through late this afternoon) 
issued at 259 am CDT Tue Jul 29 2014 


Instability sprinkles are possible this afternoon, but the 
steepest lapse rates remain well to the north and east of the County Warning Area. 
High temperatures should be a few degrees warmer than yesterday 
for most areas, but still 8-10 degrees below average for this time 
of year. 


Kanofsky 


Long term: (tonight through monday) 
issued at 259 am CDT Tue Jul 29 2014 


Previous forecast trends look reasonable and no major changes were 
required with this forecast package. Ongoing northwest flow 
pattern aloft will persist through the end of the week and into 
the weekend. There are no strong signals for either widespread 
precipitation or hot/humid weather during this time. Light 
precip is possible each afternoon this week due to instability- 
driven showers (possibly aided by transient vorticity maxima) and 
perhaps a few thunderstorms, but most locations are expected to 
remain dry. Moisture/instability parameters look a bit better on 
Thu aftn compared to the rest of the week. The upper air pattern 
begins to change over the weekend after a complex closed upper low 
near Hudson Bay lifts northeastward and a ridge over the western 
Continental U.S. Begins to shift into the plains. 


Kanofsky 


&& 


Aviation: (for the 12z tafs through 12z Wednesday morning) 
issued at 615 am CDT Tue Jul 29 2014 


VFR flight conditions are expected through the period. Diurnal cu 
should develop by 15z or so across the area with scattered-broken 
coverage, and dissipation near sunset. I wouldn't be suprised if a few 
spotty very light showers pop up this afternoon but the coverage 
will be quite sparse and longevity quite short. 


Specifics for kstl: 


VFR flight conditions are expected through the period. Diurnal cu 
should develop by 15z or so across the area with scattered-broken 
coverage, and dissipation near sunset. I wouldn't be suprised if a few 
spotty very light showers pop up this afternoon but the coverage 
will be quite sparse and longevity quite short. 


Glass 


&& 


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


$$ 


Weather forecast office lsx 



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