Sullivan, Missouri Weather Conditions

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Current Conditions

  • 46°
  • Clear
  • Wind: SE 5 mph
  • Humidity: 81%
  • Visibility: 10.0 miles
  • Dew Point: 41°
  • Pressure: 30.20 in. +
  • Heat Index: 44

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Next 12 Hours

10  am
1  pm
4  pm
7  pm
10  pm
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Chance of Rain
Chance of Rain
Mostly Cloudy
Mostly Cloudy
Partly Cloudy
Partly Cloudy
52°
59°
68°
55°
52°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Chance of Rain
  • High: 68 °
  • Low: 48 °
  • Chance of Rain
  • Friday
  • Partly Cloudy
  • High: 75 °
  • Low: 59 °
  • Partly Cloudy
  • Saturday
  • Clear
  • High: 77 °
  • Low: 52 °
  • Clear
  • Sunday
  • Clear
  • High: 77 °
  • Low: 59 °
  • Clear
  • Monday
  • Overcast
  • High: 81 °
  • Low: 55 °
  • Overcast

Forecast for Sullivan, Missouri

Updated: 10:00 AM CDT on October 23, 2014

  • Thursday

    Partly cloudy with a chance of rain in the afternoon. High of 68F. Winds from the South at 5 to 10 mph. Chance of rain 20%.

  • Thursday Night

    Partly cloudy. Low of 48F. Winds from the SW at 5 to 10 mph.

  • Friday

    Partly cloudy. High of 75F. Winds from the SW at 5 to 10 mph.

  • Friday Night

    Clear. Low of 59F. Winds from the SW at 5 to 10 mph.

  • Saturday

    Clear. High of 77F. Winds from the NW at 5 to 10 mph.

  • Saturday Night

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

  • Sunday

    Clear. High of 77F. Winds from the SE at 5 to 10 mph.

  • Sunday Night

    Clear in the evening, then mostly cloudy. Low of 59F. Winds from the South at 5 to 10 mph.

  • Monday

    Overcast. High of 81F. Breezy. Winds from the South at 15 to 20 mph.

  • Monday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 55F. Winds from the South at 10 to 15 mph. Chance of rain 60% with rainfall amounts near 0.6 in. possible.

  • Tuesday

    Overcast with a chance of a thunderstorm. High of 70F. Winds from the SSW at 10 to 15 mph shifting to the West in the afternoon. Chance of rain 70% with rainfall amounts near 0.2 in. possible.

  • Tuesday Night

    Mostly cloudy. Low of 46F. Winds from the NW at 5 to 10 mph.

  • Wednesday

    Clear. High of 63F. Winds from the NNW at 5 to 10 mph.

  • Wednesday Night

    Clear. Low of 39F. Winds less than 5 mph.

  • Thursday

    Partly cloudy. High of 59F. Winds less than 5 mph.

  • Thursday Night

    Partly cloudy with a chance of rain. Low of 39F. Winds less than 5 mph. Chance of rain 40%.

  • Friday

    Partly cloudy. High of 52F. Winds from the NNW at 5 to 10 mph.

  • Friday Night

    Partly cloudy. Low of 34F. Winds less than 5 mph.

  • Saturday

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

  • Saturday Night

    Clear. Low of 36F. Winds less than 5 mph.

  • Sunday

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

  • Sunday Night

    Clear. Low of 36F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: RAWS SULLIVAN MO US, Sullivan, MO

Updated: 8:00 AM CDT

Temperature: 45 °F Dew Point: 40 °F Humidity: 83% Wind: SSW at 5 mph Pressure: - Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Lake St Clair, Saint Clair, MO

Updated: 9:09 AM CDT

Temperature: 48.7 °F Dew Point: 45 °F Humidity: 86% Wind: SSE at 3.7 mph Pressure: 30.11 in Hourly Precipitation: - Windchill: 48 °F Graphs

Location: Ft. Russell, Leslie, MO

Updated: 9:23 AM CDT

Temperature: 44.0 °F Dew Point: 25 °F Humidity: 47% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: St. Clair, Saint Clair, MO

Updated: 9:20 AM CDT

Temperature: 48.3 °F Dew Point: 45 °F Humidity: 87% Wind: WSW at 1.0 mph Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: Parkway Village, St Clair, MO

Updated: 9:24 AM CDT

Temperature: 53.1 °F Dew Point: 41 °F Humidity: 63% Wind: SW at 2.2 mph Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: 63084, Union, MO

Updated: 9:20 AM CDT

Temperature: 42.3 °F Dew Point: 42 °F Humidity: 98% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Gerald, Gerald, MO

Updated: 9:19 AM CDT

Temperature: 50.5 °F Dew Point: 43 °F Humidity: 76% Wind: SSE at 5.0 mph Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Grandview Farms, Union, MO

Updated: 9:24 AM CDT

Temperature: 48.1 °F Dew Point: 44 °F Humidity: 87% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 48 °F Graphs

Location: MesoWest WSNTN1 MO US UPR, Washington, MO

Updated: 5:30 AM CDT

Temperature: 37 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Second Creek, Drake, MO

Updated: 9:24 AM CDT

Temperature: 50.5 °F Dew Point: 46 °F Humidity: 84% Wind: SW at 4.2 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: MesoWest GRSMT1 MO US UPR, Pacific, MO

Updated: 8:10 AM CDT

Temperature: 43 °F Dew Point: - Humidity: - Wind: Calm Pressure: - 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 
717 am CDT Thu Oct 23 2014 


Short term: (through this afternoon) 
issued at 313 am CDT Thu Oct 23 2014 


Broad north-S band of showers and isolated thunderstorms ahead of plains 
shortwave currently stretch from western IA, through NW MO, into se 
KS, and the primary forecast question for today is how far east this 
rain will get. Strong ridging with very dry low level air remains 
locked in place from the Great Lakes to the Ohio Valley by storm 
system working its way up the East Coast, and this will certainly 
inhibit any substantial increase in lower tropospheric moisture. 
Believe that the combination of shortwave energy, moisture 
advection, and isentropic ascent will cause upstream showers to work 
work into our far NW counties this morning, with this precip then 
struggling eastward during the day and "withering on the vine" from 
central MO into west central Illinois during the afternoon hours as 
shortwave outruns the limited low level moisture return and 
encounters much drier air. Still working on fine-tuning the 
details, but at this time planning to limit any mention of precip to 
areas northwest of a Cuba-St Louis-Hillsboro line, with highest pops 
just east of Kirksville. 


Truett 


Long term: (tonight through wednesday) 
issued at 313 am CDT Thu Oct 23 2014 


(tonight through saturday) 


With no precip anticipated, focus thru this period will be temps. 


Mdls are in good agreement with upper trof moving east of the region 
overnight and swly flow at the sfc returning ahead of the next 
cdfnt. This cdfnt is progd to push thru Sat morning, which may 
require adjustments to temps on Sat with future updates. 


With clouds expected to clear late tonight, have trended twd the 
cooler guidance for tonight. With the thermal ridge advecting into 
the region for Fri, have trended twd the warmer guidance. Similar 
trends for Fri night with swly flow continuing overnight. Sat has 
some forecast challenge with fropa expected in the morning. With 
full insolation expected, have trended twd the warmer guidance even 
with a nwly flow. 


(Sunday through wednesday) 


Focus turns to precip chances on tues. 


23/00z mdls are in generally good agreement thru tues morning, tho 
the Gem is faster with the upper trof ejecting into the plains. Have 
focused pops on Mon night and tues when the European model (ecmwf)/GFS have come into 
better agreement. However, the 00z solns are somewhat different from 
the prev 12z solns. Therefore, have still kept pops on the lower 
side for now until a persistent signal is given. 




Tilly 


&& 


Aviation: (for the 12z tafs through 12z Friday morning) 
issued at 649 am CDT Thu Oct 23 2014 


Although broad area of warm air advection has produced some lowering of VFR 
ceilings over western and northern MO, low level flow originating 
from surface ridge over the Ohio Valley will continue to pump very 
dry low level air (aob 3kft) into the forecast area throughout the day. While 
increasing mid and high level moisture will lead to a general 
increase in clouds from west to east during the day, this lower 
level dry air should prevent ceilings from dropping below the VFR 
category, and also cause the area of showers currently west of the 
forecast area to struggle to spread east during the day. Showers have made 
very little eastward progression so far this morning, and based on 
this trend have opted to leave out mention of showers at all 
locations at this time, and will let oncoming shift Nowcast this 
low-impact threat. Passage of shortwave and breakdown of the warm 
advection should cause moisture to stratify and clouds to thin 
heading into the evening, but subtle increase in surface dewpoints 
may also lead to some predawn fog. All of the available MOS output 
suggests some vsby restrictions after 06z, and have introduced 
some MVFR vsbys at all location during the predawn hours with the 
thinking that these trends will be fine-tuned by later shifts. 


Specifics for kstl: clouds aoa 5kft will impact the area today and 
into the evening. A few afternoon showers cannot totally be ruled 
out, but at this point coverage is expected to be so spotty in the 
Metro area that the mention has been omitted from the forecast at 
this time. However, did follow MOS trends of bringing in some MVFR 
fog late tonight due to subtle increase in surface dewpoints. 


Truett 


&& 


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


$$ 


Weather forecast office lsx 



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