Sullivan, Missouri Weather Conditions

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Current Conditions

  • 54°
  • Overcast
  • Wind: Calm
  • Humidity: 100%
  • Visibility: 0.8 miles
  • Dew Point: 54°
  • Pressure: 29.27 in. 0

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Next 12 Hours

9  pm
12  am
3  am
6  am
9  am
Chance of Rain
Chance of Rain
Rain
Rain
Rain
Rain
Chance of Snow
Chance of Snow
Chance of Rain
Chance of Rain
45°
43°
43°
36°
37°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Chance of Snow
  • High: 45 °
  • Low: 25 °
  • Chance of Snow
  • Tuesday
  • Partly Cloudy
  • High: 43 °
  • Low: 27 °
  • Partly Cloudy
  • Wednesday
  • Chance of Snow
  • High: 45 °
  • Low: 27 °
  • Chance of Snow
  • Thursday
  • Partly Cloudy
  • High: 43 °
  • Low: 23 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 52 °
  • Low: 23 °
  • Partly Cloudy

Forecast for Sullivan, Missouri

Updated: 3:00 PM CST on November 23, 2014

  • Sunday

    Overcast with a chance of a thunderstorm and rain showers. High of 57F. Winds from the SE at 5 to 10 mph. Chance of rain 100% with rainfall amounts near 0.5 in. possible.

  • Sunday Night

    Overcast with rain. Fog overnight. Low of 36F. Breezy. Winds from the SSW at 10 to 20 mph shifting to the West after midnight. Chance of rain 70% with rainfall amounts near 0.4 in. possible.

  • Monday

    Mostly cloudy with a chance of snow and a chance of rain, then a chance of rain in the afternoon. High of 45F. Breezy. Winds from the West at 15 to 20 mph. Chance of precipitation 20% .

  • Monday Night

    Partly cloudy. Low of 25F. Winds from the West at 5 to 15 mph.

  • Tuesday

    Partly cloudy in the morning, then clear. High of 43F. Winds from the West at 5 to 10 mph.

  • Tuesday Night

    Clear in the evening, then partly cloudy. Low of 27F with a windchill as low as 18F. Winds from the SSW at 5 to 15 mph.

  • Wednesday

    Overcast with a chance of snow and a chance of rain. High of 45F. Breezy. Winds from the SW at 10 to 20 mph shifting to the WNW in the afternoon. Chance of snow 20%.

  • Wednesday Night

    Overcast. Low of 27F. Breezy. Winds from the NW at 10 to 20 mph.

  • Thursday

    Mostly cloudy in the morning, then clear. High of 43F. Winds from the NW at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 23F with a windchill as low as 16F. Winds from the ENE at 5 to 10 mph shifting to the SE after midnight.

  • Friday

    Partly cloudy. High of 52F. Breezy. Winds from the South at 15 to 20 mph.

  • Friday Night

    Partly cloudy. Low of 23F. Breezy. Winds from the SSW at 15 to 20 mph.

  • Saturday

    Clear. Fog early. High of 61F. Breezy. Winds from the WSW at 10 to 20 mph.

  • Saturday Night

    Clear. Low of 19F. Winds from the North at 10 to 15 mph.

  • Sunday

    Mostly cloudy. High of 64F. Winds from the ENE at 5 to 15 mph.

  • Sunday Night

    Overcast. Low of 34F. Winds from the ESE at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 43F. Winds less than 5 mph.

  • Monday Night

    Partly cloudy with a chance of rain. Fog overnight. Low of 36F. Winds less than 5 mph. Chance of rain 20%.

  • Tuesday

    Mostly cloudy with a chance of a thunderstorm. Fog early. High of 48F. Winds less than 5 mph. Chance of rain 20%.

  • Tuesday Night

    Overcast with a chance of a thunderstorm. Fog overnight. Low of 30F. Winds less than 5 mph. Chance of rain 30%.

  • Wednesday

    Mostly cloudy with a chance of a thunderstorm. Fog early. High of 46F. Winds less than 5 mph. Chance of rain 20%.

  • Wednesday Night

    Overcast with a chance of a thunderstorm. Fog overnight. Low of 32F. Winds less than 5 mph. Chance of rain 30% with rainfall amounts near 0.6 in. possible.

  • Thursday

    Clear. Fog early. High of 54F. Winds less than 5 mph.

  • Thursday Night

    Clear. Low of 32F with a windchill as low as 14F. Breezy. Winds from the ENE at 20 to 25 mph shifting to the NNW after midnight.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Lake St Clair, Saint Clair, MO

Updated: 8:13 PM CST

Temperature: 54.1 °F Dew Point: 54 °F Humidity: 99% Wind: West at 1.7 mph Pressure: 29.13 in Hourly Precipitation: - Graphs

Location: Ft. Russell, Leslie, MO

Updated: 8:19 PM CST

Temperature: 54.4 °F Dew Point: 38 °F Humidity: 54% Wind: Calm Pressure: 29.27 in Hourly Precipitation: 0.00 in Graphs

Location: St. Clair, Saint Clair, MO

Updated: 8:15 PM CST

Temperature: 54.7 °F Dew Point: 55 °F Humidity: 100% Wind: SW at 2.0 mph Pressure: 29.25 in Hourly Precipitation: 0.00 in Graphs

Location: 63084, Union, MO

Updated: 8:16 PM CST

Temperature: 53.1 °F Dew Point: 52 °F Humidity: 97% Wind: WSW at 2.0 mph Pressure: 29.24 in Hourly Precipitation: 0.00 in Graphs

Location: Gerald, Gerald, MO

Updated: 8:04 PM CST

Temperature: 54.2 °F Dew Point: 53 °F Humidity: 97% Wind: SE at 1.0 mph Pressure: 29.26 in Hourly Precipitation: 0.00 in Graphs

Location: Grandview Farms, Union, MO

Updated: 8:19 PM CST

Temperature: 55.1 °F Dew Point: 54 °F Humidity: 97% Wind: Calm Pressure: 29.25 in Hourly Precipitation: 0.00 in Graphs

Location: MesoWest WSNTN1 MO US UPR, Washington, MO

Updated: 7:20 PM CST

Temperature: 52 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: Catawissa, MO

Updated: 8:19 PM CST

Temperature: 54.0 °F Dew Point: 54 °F Humidity: 100% Wind: Calm Pressure: 29.25 in Hourly Precipitation: 0.00 in Graphs

Location: Second Creek, Drake, MO

Updated: 8:19 PM CST

Temperature: 54.7 °F Dew Point: 54 °F Humidity: 99% Wind: SW at 3.7 mph Pressure: 29.35 in Hourly Precipitation: 0.00 in 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 CST sun Nov 23 2014 


Short term: (through monday) 
issued at 346 PM CST sun Nov 23 2014 


Main concern for tonight will be will there be any snow accumulation 
over northwestern parts of the area as rain changes to snow behind a 
sharp cold front. Most of the County Warning Area has seen rain today and the 
current band which is being forced by strong moisture convergence 
and strong ascent ahead of ejecting shortwave trough will move 
northeast of the County Warning Area this evening. This will cause a lull in the 
precipitation this evening before a second area currently over the 
plains moves into the area later this evening and overnight. This 
area is being frontogenetically forced ahead of a second trough 
currently over the northern plains. Attendant cold front that 
currently extends across central Iowa into far northwest Missouri 
into eastern Kansas will push eastward this evening, reaching St. 
Louis by midnight and east of the County Warning Area by 3 am. Forecast soundings 
suggest that the rain will mix with and then changeover to snow 
after midnight before the frontogenetical band lifts out between 
midnight and 6 am. Current indications are that snowfall amounts 
will be less than 1 inch along and north of a Shelbina to Quincy 
line given the relatively warm soil temperatures (novelty Missouri 
mesonet 2 inch soil temperature is currently 50 degrees) and the 
relative short amount of time that the accumulating snow will 
fall. It will be windy late tonight into tomorrow as decent 
gradient winds set up behind the cold front. However it does not 
appear that we will hit advisory criteria at this time. 


Do not expect much clearing tomorrow as forecast soundings show some 
minimal cape in the lowest levels tomorrow afternoon suggesting some 
isolated snow or rain showers will develop in the low level cyclonic 
flow. Highs tomorrow are only a few degrees warmer than lows tonight. 


Britt 


Long term: (monday night through next sunday) 
issued at 346 PM CST sun Nov 23 2014 


(monday night through wednesday) 


Next notable trough that will move through the area will be on 
Wednesday which the European model (ecmwf) and GFS both show light quantitative precipitation forecast across the 
County Warning Area. Have increased pops a bit across the area, with the highest 
amounts over the northern County Warning Area where current track of the surface 
low will be. Temperatures will stay below normal during the period. 


(Thursday through next sunday) 


Overall confidence in forecast during this period is not high as the 
both operational GFS and European model (ecmwf) and their ensembles have had continuity 
issues the past few days with the timing and strength of the troughs 
that will move across the area later this week. Latest runs are showing 
quasi-zonal flow during the period with shortwave troughs moving quickly 
across the area. While the GFS is developing some quantitative precipitation forecast over the region 
on Saturday, this is different than yesterday's run, so will discount 
for now. Will go dry during this period given the inherent difficulties 
in timing precipitation in zonal flow. 


Britt 


&& 


Aviation: (for the 00z tafs through 00z Monday evening) 
issued at 531 PM CST sun Nov 23 2014 


Specifics for kcou, kuin: several issues to discuss for the 00z 
taf cycle. Continual new development of rain/dz across central and 
northern MO makes it less likely to see a substantial break in the 
precip at kcou and KUIN compared to farther south and east. 
Conditions should remain IFR for the near future. The next area of 
precipitation to affect kcou and KUIN was associated with an 
approaching cold front. The rain is expected to mix with and 
change over to snow with minor accumulations possible (one-quarter 
to one-half of an inch or less) between 08-13z. A significant wind 
shift will accompany the front. Winds will become west to 
northwest and increase to around 20 kts sustained with gusts of 
30-35 kts. It is possible that instability snow showers may 
develop tomorrow afternoon due to the very cold air aloft, but 
confidence is too low to include in the tafs at this time. This 
possibility will be re-examined for the 06z issuance. 


Specifics for kstl, ksus, kcps: several issues to discuss for the 00z 
taf cycle. It looks like the ongoing rain/dz will diminish over the 
next few hours (vsbys should increase at least briefly), but cigs 
will probably remain IFR due to the substantial low level moisture 
in place. The next area of rain to affect the Metro area taf sites 
is associated with an approaching cold front. It is possible that 
some of the rain may mix with snow as precipitation is ending, but 
confidence is too low to introduce rasn at Metro area taf sites 
yet. A significant change in winds will accompany the front 
between 10-14z. Winds will become west to northwest and increase 
to around 15-25 kts sustained with gusts of 30-35 kts. Finally, it 
is possible that instability snow showers may develop tomorrow 
afternoon due to the very cold air aloft, but confidence is too 
low to include in the taf attm. 


Kanofsky 


&& 


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


$$ 


Weather forecast office lsx 



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