Sullivan, Missouri Weather Conditions

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Current Conditions

  • 91°
  • Partly Cloudy
  • Wind: Calm
  • Humidity: 46%
  • Visibility: 10.0 miles
  • Dew Point: 68°
  • Pressure: 29.92 in. +
  • Heat Index: 95

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Next 12 Hours

3  pm
6  pm
9  pm
12  am
3  am
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
Clear
Clear
93°
90°
76°
73°
71°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Partly Cloudy
  • High: 93 °
  • Low: 68 °
  • Partly Cloudy
  • Friday
  • Clear
  • High: 94 °
  • Low: 67 °
  • Clear
  • Saturday
  • Clear
  • High: 94 °
  • Low: 68 °
  • Clear
  • Sunday
  • Clear
  • High: 94 °
  • Low: 70 °
  • Clear
  • Monday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 69 °
  • Chance of T-Storms

Forecast for Sullivan, Missouri

Updated: 2:14 PM CDT on January 03, 2015

  • Thursday

    Partly cloudy. High 93F. Winds SSW at 5 to 10 mph.

  • Thursday Night

    Mainly clear. Low 68F. Winds light and variable.

  • Friday

    Sunny, along with a few afternoon clouds. High 94F. Winds light and variable.

  • Friday Night

    Clear skies. Low 67F. Winds light and variable.

  • Saturday

    Mostly sunny skies. High 94F. Winds S at 5 to 10 mph.

  • Saturday Night

    A few clouds. Low 68F. Winds light and variable.

  • Sunday

    Sunshine and some clouds. High 94F. Winds S at 5 to 10 mph.

  • Sunday Night

    A few clouds. Low around 70F. Winds light and variable.

  • Monday

    Scattered thunderstorms in the morning, then partly cloudy late. High 88F. Winds SSW at 5 to 10 mph. Chance of rain 60%.

  • Monday Night

    A few clouds from time to time. Low 69F. Winds light and variable.

  • Tuesday

    Scattered thunderstorms. High 86F. Winds SSW at 5 to 10 mph. Chance of rain 60%.

  • Tuesday Night

    Variably cloudy with scattered thunderstorms. Low 67F. Winds light and variable. Chance of rain 60%.

  • Wednesday

    Scattered thunderstorms. High near 80F. Winds WNW at 5 to 10 mph. Chance of rain 60%.

  • Wednesday Night

    Mostly cloudy with showers and a few thunderstorms. Low 58F. Winds light and variable. Chance of rain 60%.

  • Thursday

    A few clouds early, otherwise mostly sunny. High 78F. Winds N at 5 to 10 mph.

  • Thursday Night

    Mostly clear skies. Low around 55F. Winds light and variable.

  • Friday

    Partly cloudy skies. High 78F. Winds NE at 5 to 10 mph.

  • Friday Night

    Clear. Low around 55F. Winds light and variable.

  • Saturday

    Mostly sunny skies. High 77F. Winds NE at 5 to 10 mph.

  • Saturday Night

    Mostly clear skies. Low 56F. Winds ESE at 5 to 10 mph.

  • Sunday

    Mostly sunny skies. High 77F. Winds SW at 5 to 10 mph.

  • Sunday Night

    Mostly clear skies early followed by increasing clouds and a few showers later at night. Low 57F. Winds light and variable. Chance of rain 30%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Highway 185, Sullivan, MO

Updated: 4:21 PM CDT

Temperature: 91.4 °F Dew Point: 75 °F Humidity: 59% Wind: North at - Pressure: 30.09 in Hourly Precipitation: - Heat Index: 102 °F Graphs

Location: Lake St Clair, Saint Clair, MO

Updated: 4:18 PM CDT

Temperature: 89.1 °F Dew Point: 71 °F Humidity: 55% Wind: Calm Pressure: 29.73 in Hourly Precipitation: - Heat Index: 95 °F Graphs

Location: Parkway Village, St Clair, MO

Updated: 4:22 PM CDT

Temperature: 99.5 °F Dew Point: 73 °F Humidity: 43% Wind: East at 3.1 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 111 °F Graphs

Location: 63084, Union, MO

Updated: 4:12 PM CDT

Temperature: 93.2 °F Dew Point: 72 °F Humidity: 50% Wind: SW at 2.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 101 °F Graphs

Location: SE Owensville, Owensville, MO

Updated: 4:13 PM CDT

Temperature: 96.8 °F Dew Point: 68 °F Humidity: 39% Wind: SSW at 3.2 mph Pressure: 29.65 in Hourly Precipitation: - Heat Index: 102 °F Graphs

Location: Gerald, Gerald, MO

Updated: 4:13 PM CDT

Temperature: 92.9 °F Dew Point: 69 °F Humidity: 45% Wind: South at 1.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: Grandview Farms, Union, MO

Updated: 4:22 PM CDT

Temperature: 90.3 °F Dew Point: 73 °F Humidity: 57% Wind: ESE at 4.0 mph Pressure: 29.19 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Cuba, Cuba, MO

Updated: 4:22 PM CDT

Temperature: 91.0 °F Dew Point: 70 °F Humidity: 51% Wind: WSW at 4.7 mph Pressure: 29.88 in Hourly Precipitation: - Heat Index: 97 °F Graphs

Location: Catawissa, MO

Updated: 4:23 PM CDT

Temperature: 95.5 °F Dew Point: 73 °F Humidity: 49% Wind: WSW at 1.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 106 °F Graphs

Location: Second Creek, Drake, MO

Updated: 4:22 PM CDT

Temperature: 93.4 °F Dew Point: 69 °F Humidity: 46% Wind: SW at 4.4 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: 99 °F Graphs

Location: Stony Hill / Swiss / Drake, Hermann, MO

Updated: 4:22 PM CDT

Temperature: 90.8 °F Dew Point: 71 °F Humidity: 53% Wind: SW at 3.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 98 °F Graphs

Location: APRSWXNET, Potosi, MO

Updated: 3:48 PM CDT

Temperature: 89 °F Dew Point: 70 °F Humidity: 53% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 94 °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 
319 PM CDT Thursday Sep 3 2015 


Short term: (through late tonight) 
issued at 314 PM CDT Thu Sep 3 2015 


An upper level ridge is dominating the central and eastern Continental U.S. 
This afternoon with no discernible upper level disturbances 
within this flow nearby our region. Once again, a field of cumulus 
clouds has formed in nearly the same area as yesterday: generally 
over areas south of I-70 in MO, and southeast of I-55 in Illinois. Temps 
have risen into the 90 to 95 degree range. 


May see a very brief and limited thunderstorms and rain threat late this afternoon 
within the current cumulus field with what should be (again) a dry 
overnight. 


Otherwise, persistence temps for overnight mins will be hard to beat 
with readings ranging from the mid 60s in the Eastern Ozarks to the 
mid 70s in the urban heat island of stl city, with near 70 most 
everywhere else. 


Tes 


Long term: (friday through next thursday) 
issued at 314 PM CDT Thu Sep 3 2015 


Hot and dry weather pattern to continue across the region through 
Sunday. Will see above normal temperatures with highs in the low to 
mid 90s and overnight lows in the upper 60s to low 70s. 


Some of the models are a bit slower with frontal boundary early next 
week. It begins to move into forecast area then stalls out and 
pushes back north. So best chances for rain will be over central and 
northeast MO as well as west central Illinois Sunday night through 
Tuesday. Temperatures Monday and Tuesday will depend on cloud cover 
and precipitation. So could still see above normal temps each day. 


Then on Wednesday, decent upper level shortwave slides southeast 
into the Great Lakes region, which will help to finally push the 
cold front through the forecast area. Timing is still a bit hard to 
pin down, but most models have it south of forecast area by 
Wednesday afternoon. Showers and thunderstorms will persist as 
front moves through, tapering off by Thursday, though could still 
see some Post frontal activity, so kept slight chance pops on 
Thursday. By next Thursday, highs will only be in the upper 70s 
to low 80s with overnight lows in the upper 50s to low 60s. 


Byrd 
&& 


Aviation: (for the 18z tafs through 18z Friday afternoon) 
issued at 1217 PM CDT Thu Sep 3 2015 


VFR conditions, dry wx, and S-SW surface winds will prevail at the 
taf sites thru the valid period. Once again, we could see isolated 
rain showers/thunderstorms and rain for a brief period this afternoon but probs are much too 
low for any taf mention. Also looking at persistence being favored 
for any visibility reductions at some sites for late tonight. 


Specifics for kstl: VFR, dry, with S-SW surface winds. 


Tes 
&& 


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


$$ 
Weather forecast office lsx 



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