Sullivan, Missouri Weather Conditions

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Current Conditions

  • 75°
  • Clear
  • Wind: Calm
  • Humidity: 100%
  • Visibility: 6.0 miles
  • Dew Point: 75°
  • Pressure: 29.92 in. 0

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Next 12 Hours

4  am
7  am
10  am
1  pm
4  pm
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
77°
77°
88°
91°
91°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Saturday
  • Clear
  • High: 99 °
  • Low: 70 °
  • Clear
  • Sunday
  • Clear
  • High: 99 °
  • Low: 68 °
  • Clear
  • Monday
  • Partly Cloudy
  • High: 93 °
  • Low: 70 °
  • Partly Cloudy
  • Tuesday
  • Chance of a Thunderstorm
  • High: 91 °
  • Low: 73 °
  • Chance of T-Storms
  • Wednesday
  • Partly Cloudy
  • High: 86 °
  • Low: 68 °
  • Partly Cloudy

Forecast for Sullivan, Missouri

Updated: 4:00 AM CDT on August 23, 2014

Heat advisory in effect until 7 PM CDT Monday...
  • Saturday

    Clear. High of 99F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 70F. Winds less than 5 mph.

  • Sunday

    Clear. High of 99F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 68F. Winds less than 5 mph.

  • Monday

    Partly cloudy. Fog early. High of 93F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 70F. Winds from the SE at 5 to 10 mph.

  • Tuesday

    Clear with a chance of a thunderstorm and rain. High of 91F. Winds from the South at 5 to 10 mph. Chance of rain 50%.

  • Tuesday Night

    Clear. Low of 73F. Winds from the South at 5 to 10 mph.

  • Wednesday

    Clear in the morning, then partly cloudy. High of 86F. Winds from the SSW at 5 to 10 mph.

  • Wednesday Night

    Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 68F. Winds from the West at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.6 in. possible.

  • Thursday

    Overcast with a chance of a thunderstorm. High of 86F. Winds from the NNW at 10 to 15 mph. Chance of rain 20%.

  • Thursday Night

    Clear. Low of 57F. Winds from the NNW at 5 to 10 mph.

  • Friday

    Partly cloudy. High of 81F. Winds from the North at 5 to 10 mph.

  • Friday Night

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

  • Saturday

    Partly cloudy. High of 82F. Winds less than 5 mph.

  • Saturday Night

    Clear. Fog overnight. Low of 54F. Winds less than 5 mph.

  • Sunday

    Clear. High of 84F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 66F. Winds less than 5 mph.

  • Monday

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

  • Monday Night

    Clear. Low of 66F. Winds less than 5 mph.

  • Tuesday

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

  • Tuesday Night

    Clear. Fog overnight. Low of 66F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Heat Advisory  Statement as of 3:40 am CDT on August 23, 2014


... Heat advisory remains in effect until 7 PM CDT Monday...

* timing... dangerous levels of heat and humidity will continue
through the weekend.

* Heat index values... 100 to 107 during each afternoon.

* Impacts... the combination of hot temperatures and high
humidity will likely lead to an increased risk of heat-
related stress and illness. The very Young... the elderly...
those without air conditioning... and those participating in
strenuous outdoor activities will be the most susceptible.
Also... car interiors can reach lethal temperatures in a matter
of minutes. Beat the heat... check the backseat! Never leave
children or pets unattended in a vehicle... not even for a
minute.

Precautionary/preparedness actions...

Take extra precautions if you work or spend time outside. When
possible... reschedule strenuous activities to the early morning
or evening. Know the signs and symptoms of heat exhaustion and
heat stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work... the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments. Anyone overcome by
heat should be moved to a cool and shaded location. Heat stroke
is an emergency. Call 9-1-1 immediately.





Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: RAWS SULLIVAN MO US, Sullivan, MO

Updated: 4:00 AM CDT

Temperature: 80 °F Dew Point: 70 °F Humidity: 71% Wind: WSW at 7 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: Ft. Russell, Leslie, MO

Updated: 4:26 AM CDT

Temperature: 75.3 °F Dew Point: 47 °F Humidity: 37% Wind: Calm Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: St. Clair, Saint Clair, MO

Updated: 4:25 AM CDT

Temperature: 79.7 °F Dew Point: 74 °F Humidity: 84% Wind: SW at 1.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: Parkway Village, St Clair, MO

Updated: 4:27 AM CDT

Temperature: 79.7 °F Dew Point: 70 °F Humidity: 71% Wind: South at 1.6 mph Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 83 °F Graphs

Location: 63084, Union, MO

Updated: 4:22 AM CDT

Temperature: 76.6 °F Dew Point: 73 °F Humidity: 87% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Gerald, Gerald, MO

Updated: 4:12 AM CDT

Temperature: 78.7 °F Dew Point: 72 °F Humidity: 79% Wind: SW at 1.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

Location: Grandview Farms, Union, MO

Updated: 4:27 AM CDT

Temperature: 79.7 °F Dew Point: 74 °F Humidity: 81% Wind: South at 1.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 84 °F Graphs

Location: MesoWest WSNTN1 MO US UPR, Washington, MO

Updated: 3:40 AM CDT

Temperature: 73 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Second Creek, Drake, MO

Updated: 4:27 AM CDT

Temperature: 77.3 °F Dew Point: 73 °F Humidity: 86% Wind: SSW at 2.8 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: new haven, New Haven, MO

Updated: 4:26 AM CDT

Temperature: 77.3 °F Dew Point: 73 °F Humidity: 86% Wind: SSW at 3.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: YMCA Trout Lodge & Camp Lakewood, Potosi, MO

Updated: 4:25 AM CDT

Temperature: 78.7 °F Dew Point: 74 °F Humidity: 84% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 82 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service St Louis MO 
335 am CDT Sat Aug 23 2014 


Short term: (through late this afternoon) 
issued at 332 am CDT Sat Aug 23 2014 


Warm frontal boundary remains across region early this morning 
with isolated/scattered storms firing north of it. A few have 
moved into far northern portions of forecast area early this 
morning. So have added isolated mention in this area through 15z 
today. Otherwise, Summer has returned with a vengeance with 
dangerous heat and humidity. Because of the high dewpts in the 
upper 60s to mid 70s, lowered high temps a degree or two for 
today. This will not affect heat indices as the higher dewpts and 
slightly lower highs still create indices in the 100 to 109 degree 
range once again. High resolution models want to generate 
thunderstorm activity mainly east of Mississippi River this 
afternoon but feel it will just skim our far eastern portions, so 
added slight chance pops in this area. 


Byrd 


Long term: (tonight through friday) 
issued at 332 am CDT Sat Aug 23 2014 


Models are keeping boundary draped across forecast area through 
at least this evening before it weakens and lifts north late tonight. 
So with front north of area on Sunday, it could be our hottest day 
with temps approaching 100 for southern half of forecast area. 
Heat indicies will once again be between 100 and 109. Will remain 
hot through at least Monday, so will keep advisories and warnings 
going through that period. 


Still not confident on exact timing with next weather system, which 
could begin to bring some rain to region by Tuesday, but just a 
slight chance. Could see hot enough temps and heat indices on 
Tuesday to keep headlines through then, but not confident enough to 
do that at this time. Otherwise, will see better chances of rain 
Wednesday through Thursday with temperatures cooling off. 


Byrd 
&& 


Aviation: (for the 06z tafs through 06z Saturday night) 
issued at 1111 PM CDT Fri Aug 22 2014 


Although there may be isolated thunderstorms across much of the 
area late tonight and Saturday in the humid and unstable 
environment, the best threat for more widespread convection should 
be north of the taf sites as a weak warm front lifts northward. 
For now will leave the tafs dry. Should be just mid-high level 
clouds outside of the convection late tonight and Saturday, 
including high level convective debris cloudiness. Light surface 
winds late tonight, then mainly weak sly surface winds on 
Saturday. 


Specifics for kstl: most of the convection should remain north and 
northeast of stl this forecast period. Just mid-high level 
cloudiness mainly late tonight and Saturday morning. The light surface 
wind will only increase to 6-8 kts Saturday afternoon, mainly from 
a sly direction. 


Gks 
&& 


Lsx watches/warnings/advisories: 
MO...heat advisory until 7 PM CDT Monday for Audrain MO-Boone MO- 
Callaway MO-Cole MO-Crawford MO-Franklin MO-Gasconade MO- 
Iron MO-Jefferson MO-Knox MO-Lewis MO-Lincoln MO-Madison MO- 
Marion MO-Moniteau MO-Monroe MO-Montgomery MO-Osage MO-Pike 
MO-Ralls MO-Reynolds MO-Shelby MO-St. Charles MO-St. 
Francois MO-Ste. Genevieve MO-Warren MO-Washington MO. 


Excessive heat warning until 7 PM CDT Monday for St. Louis city 
MO-St. Louis MO. 


Illinois...heat advisory until 7 PM CDT Monday for Adams Illinois-Bond Illinois-Brown 
Illinois-Calhoun Illinois-Clinton Illinois-Fayette Illinois-Greene Illinois-Jersey Illinois- 
Macoupin Illinois-Marion Illinois-Monroe Illinois-Montgomery Illinois-Pike Illinois- 
Randolph Illinois-Washington Illinois. 


Excessive heat warning until 7 PM CDT Monday for Madison IL-St. 
Clair Illinois. 


&& 


$$ 
Weather forecast office lsx 










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