Herculaneum, Missouri Weather Conditions

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Current Conditions

  • 62°
  • Clear
  • Wind: Calm
  • Humidity: 78%
  • Visibility: 10.0 miles
  • Dew Point: 55°
  • Pressure: 30.01 in. 0

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Next 12 Hours

7  pm
10  pm
1  am
4  am
7  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
68°
63°
55°
57°
52°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Partly Cloudy
  • High: 81 °
  • Low: 52 °
  • Partly Cloudy
  • Sunday
  • Clear
  • High: 79 °
  • Low: 63 °
  • Clear
  • Monday
  • Chance of a Thunderstorm
  • High: 81 °
  • Low: 59 °
  • Chance of a Thunderstorm
  • Tuesday
  • Partly Cloudy
  • High: 68 °
  • Low: 41 °
  • Partly Cloudy
  • Wednesday
  • Clear
  • High: 59 °
  • Low: 46 °
  • Clear

Forecast for Herculaneum, Missouri

Updated: 4:00 PM CDT on October 25, 2014

  • Saturday

    Partly cloudy. Fog early. High of 79F. Winds from the WNW at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 52F. Winds less than 5 mph.

  • Sunday

    Clear. High of 79F. Winds from the SE at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 63F. Winds from the SSE at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 81F. Winds from the SSW at 10 to 15 mph. Chance of rain 20%.

  • Monday Night

    Overcast with a chance of a thunderstorm and a chance of rain, then a chance of a thunderstorm and rain after midnight. Fog overnight. Low of 59F. Winds from the SW at 10 to 15 mph. Chance of rain 70% with rainfall amounts near 0.2 in. possible.

  • Tuesday

    Overcast in the morning, then clear. High of 68F. Winds from the WNW at 10 to 15 mph.

  • Tuesday Night

    Mostly cloudy. Low of 41F. Winds from the WNW at 5 to 10 mph.

  • Wednesday

    Partly cloudy in the morning, then clear. High of 59F. Winds from the WNW at 5 to 10 mph.

  • Wednesday Night

    Clear. Low of 46F. Winds from the South at 5 to 10 mph.

  • Thursday

    Partly cloudy. High of 64F. Winds from the SW at 5 to 10 mph shifting to the WNW in the afternoon.

  • Thursday Night

    Clear. Low of 41F. Winds from the NW at 5 to 10 mph.

  • Friday

    Clear. High of 48F. Winds from the NNW at 10 to 15 mph.

  • Friday Night

    Clear. Low of 37F. Winds from the North at 5 to 15 mph.

  • Saturday

    Clear. High of 54F. Winds from the NNW at 10 to 15 mph.

  • Saturday Night

    Clear. Low of 39F. Winds from the North at 5 to 10 mph.

  • Sunday

    Clear. High of 57F. Winds from the SSE at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 43F. Winds from the South at 5 to 10 mph.

  • Monday

    Clear. High of 64F. Winds from the South at 5 to 15 mph.

  • Monday Night

    Clear. Low of 50F. Winds from the South at 5 to 10 mph.

  • Tuesday

    Mostly cloudy with a chance of rain. High of 64F. Winds from the SSW at 5 to 10 mph. Chance of rain 40% with rainfall amounts near 0.2 in. possible.

  • Tuesday Night

    Mostly cloudy with a chance of rain. Low of 50F. Winds less than 5 mph. Chance of rain 20%.

  • Wednesday

    Clear. High of 64F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 50F. Winds from the SSW at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Herculaneum, Mott Street, Herculaneum, MO

Updated: 7:50 PM CDT

Temperature: 71.8 °F Dew Point: - Humidity: - Wind: North at - Pressure: 29.61 in Hourly Precipitation: - Heat Index: - Graphs

Location: On The Bluffs, Waterloo, IL

Updated: 7:59 PM CDT

Temperature: 59.3 °F Dew Point: 54 °F Humidity: 83% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: summerfield, Imperial, MO

Updated: 7:59 PM CDT

Temperature: 58.6 °F Dew Point: 58 °F Humidity: 99% Wind: Calm Pressure: 29.75 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Imperial, MO

Updated: 7:59 PM CDT

Temperature: 64.0 °F Dew Point: 53 °F Humidity: 68% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Chesapeake on the Bluff, Columbia, IL

Updated: 7:59 PM CDT

Temperature: 68.7 °F Dew Point: 53 °F Humidity: 57% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Wynfield Terrace, St. Louis, MO

Updated: 7:59 PM CDT

Temperature: 65.5 °F Dew Point: 51 °F Humidity: 59% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Arnold, MO

Updated: 7:57 PM CDT

Temperature: 63.4 °F Dew Point: 58 °F Humidity: 83% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Arnold, Arnold, MO

Updated: 7:32 PM CDT

Temperature: 64.4 °F Dew Point: 58 °F Humidity: 79% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: ARNOLD, Arnold, MO

Updated: 7:50 PM CDT

Temperature: 75.2 °F Dew Point: - Humidity: 44% Wind: North at - Pressure: 29.33 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Christopher Winds, Oakville, MO

Updated: 7:59 PM CDT

Temperature: 66.8 °F Dew Point: 56 °F Humidity: 68% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Rock Creek Terrace, High Ridge, MO

Updated: 7:59 PM CDT

Temperature: 66.0 °F Dew Point: 55 °F Humidity: 67% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Hardy Acres / AA9UC, Waterloo, IL

Updated: 5:55 PM CDT

Temperature: 71.1 °F Dew Point: 55 °F Humidity: 56% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Oakville, Cardinal Creek Subd, Oakville, MO

Updated: 7:59 PM CDT

Temperature: 60.6 °F Dew Point: 56 °F Humidity: 86% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Saint Louis County, Saint Louis County, MO

Updated: 7:55 PM CDT

Temperature: 62.5 °F Dew Point: 58 °F Humidity: 86% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ste Genevieve county, Festus, MO

Updated: 7:51 PM CDT

Temperature: 63.8 °F Dew Point: - Humidity: - Wind: North at - Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Oakville, Providence Pointe, Oakville, MO

Updated: 7:59 PM CDT

Temperature: 66.6 °F Dew Point: 57 °F Humidity: 72% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Olde Mill Estates, Byrnes Mill, MO

Updated: 7:59 PM CDT

Temperature: 67.6 °F Dew Point: 57 °F Humidity: 69% Wind: South at 1.6 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Devall's Backyard, Waterloo, IL

Updated: 7:30 PM CDT

Temperature: 62.7 °F Dew Point: 55 °F Humidity: 75% Wind: Calm Pressure: 30.02 in Hourly Precipitation: - Heat Index: - Graphs

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

Updated: 7:47 PM CDT

Temperature: 76.9 °F Dew Point: 56 °F Humidity: 48% Wind: NNE at 2.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Gedern Village, Columbia, IL

Updated: 7:57 PM CDT

Temperature: 58.8 °F Dew Point: 56 °F Humidity: 89% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest I-255 / IL-3 @ Columbia IL US ILDOT, Columbia, IL

Updated: 7:25 PM CDT

Temperature: 71 °F Dew Point: 54 °F Humidity: 56% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Jefferson Barracks, Mehlville, MO

Updated: 7:59 PM CDT

Temperature: 67.1 °F Dew Point: 55 °F Humidity: 65% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: San Luis Trails, Fenton, MO

Updated: 7:59 PM CDT

Temperature: 65.6 °F Dew Point: 56 °F Humidity: 72% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 7:55 PM CDT

Temperature: 70.9 °F Dew Point: - Humidity: 58% Wind: Calm Pressure: 29.34 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Hawkins/Smizer Mill, Fenton, MO

Updated: 7:59 PM CDT

Temperature: 64.5 °F Dew Point: 57 °F Humidity: 77% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: St. Joseph Hill, Pacific, MO

Updated: 7:51 PM CDT

Temperature: 63.4 °F Dew Point: 55 °F Humidity: 75% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: St. Louis, MO

Updated: 7:59 PM CDT

Temperature: 66.5 °F Dew Point: 58 °F Humidity: 73% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 7:50 PM CDT

Temperature: 76.8 °F Dew Point: 64 °F Humidity: 64% Wind: SE at 1.6 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: South County, Affton, MO

Updated: 7:59 PM CDT

Temperature: 64.7 °F Dew Point: 59 °F Humidity: 82% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: K0GDI, Blackwell, MO

Updated: 7:45 PM CDT

Temperature: 62.7 °F Dew Point: 54 °F Humidity: 74% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Sunset Hills, St Louis, MO

Updated: 7:52 PM CDT

Temperature: 67.8 °F Dew Point: 58 °F Humidity: 70% Wind: Calm Pressure: 29.98 in Hourly Precipitation: - Heat Index: - Graphs

Location: Crestwood, Crestwood, MO

Updated: 7:47 PM CDT

Temperature: 63.7 °F Dew Point: 57 °F Humidity: 79% Wind: Calm Pressure: 29.71 in Hourly Precipitation: - Heat Index: - Graphs

Location: MesoWest KIDD1 IL US UPR, Prairie Du Rocher, IL

Updated: 7:00 PM CDT

Temperature: 64 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: MesoWest EURKA1 MO US UPR, Wildwood, MO

Updated: 6:50 PM CDT

Temperature: 68 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Millstadt, Millstadt, IL

Updated: 7:59 PM CDT

Temperature: 61.9 °F Dew Point: 46 °F Humidity: 56% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: - 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 
603 PM CDT Sat Oct 25 2014 


Short term: (through monday) 
issued at 332 PM CDT Sat Oct 25 2014 


Although it's hard to believe based on afternoon temperatures in 
the mid-70s to lower 80s, a weak cold front did move into the County Warning Area 
earlier this morning before stalling out. A surface high moving 
through the western Great Lakes will nudge the stalled front a bit 
farther south tonight before the boundary lifts back northeastward 
as a warm front. A band of clouds may accompany the warm frontal 
passage late tonight and tomorrow, although cloud cover should be 
greater over the plains compared to eastern MO and western Illinois. 
Some fog is also possible overnight ahead of the surface front, 
mainly in central MO and parts of the Eastern Ozarks, because dew 
points should be a bit higher there compared to areas which will 
still be under the influence of the surface ridge and its drier 
air. Unseasonably warm temperatures (15-20 deg above average) are 
expected again on Sunday and Monday. 


Kanofsky 


Long term: (monday night through next saturday) 
issued at 332 PM CDT Sat Oct 25 2014 


A low pressure system was noted off the California/or coastline this 
morning, and this system will ultimately bring a chance of 
widespread rain to the area on Monday night and Tuesday. Models 
depict a few hundred j/kg of MUCAPE on Monday night, which should 
be sufficient for a few embedded thunderstorms. Comparatively 
speaking, a much cooler air mass will then spread across the 
region on Tuesday and Tuesday night, ending the recent string of 
unseasonably warm October days. 


Isolated to scattered showers are possible on Wednesday night into 
Thursday due to lift ahead of a shortwave which will be moving 
through northwest flow. 


Kanofsky 


&& 


Aviation: (for the 00z tafs through 00z Sunday evening) 
issued at 527 PM CDT Sat Oct 25 2014 


A surface ridge over the northern plains will drop southeastward 
through Iowa and Illinois tonight. Surface winds will veer around to a 
E-nely direction tonight, albeit quite light. With a clear sky and 
light surface wind there may be some fog late tonight/early Sunday 
morning, mainly in the cou area where the surface dew points will 
be a little higher. The surface wind will strengthen from a sely 
direction on Sunday as the surface ridge shifts east of the area 
and a warm front approaches. There will likely be scattered 
diurnal cumulus clouds late Sunday morning and afternoon as the 
boundary layer moistens ahead of the warm front. 


Specifics for kstl: a clear sky and light surface wind tonight. 
The surface wind will increase to around 9 kts Sunday afternoon 
from a sely direction. There will likely be scattered diurnal 
cumulus clouds Sunday afternoon. 


Gks 


&& 


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


$$ 


Weather forecast office lsx 



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