Troy, Missouri Weather Conditions

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Current Conditions

  • 41°
  • Overcast
  • Wind: SE 6 mph
  • Humidity: 81%
  • Visibility: 10.0 miles
  • Dew Point: 36°
  • Pressure: 30.23 in. 0
  • Heat Index: 37

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Next 12 Hours

12  am
3  am
6  am
9  am
12  pm
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
Fog
Fog
Fog
Fog
Mostly Cloudy
Mostly Cloudy
36°
34°
30°
34°
43°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Fog
  • High: 46 °
  • Low: 36 °
  • Fog
  • Monday
  • Rain
  • High: 48 °
  • Low: 41 °
  • Rain
  • Tuesday
  • Chance of Rain
  • High: 43 °
  • Low: 32 °
  • Chance of Rain
  • Wednesday
  • Chance of Snow
  • High: 37 °
  • Low: 21 °
  • Chance of Snow
  • Thursday
  • Mostly Cloudy
  • High: 50 °
  • Low: 30 °
  • Mostly Cloudy

Forecast for Troy, Missouri

Updated: 9:00 PM CST on December 20, 2014

  • Saturday

    Overcast. Fog early. High of 45F. Winds less than 5 mph.

  • Saturday Night

    Overcast. Low of 30F. Winds less than 5 mph.

  • Sunday

    Partly cloudy. Fog early. High of 46F. Winds from the South at 5 to 10 mph.

  • Sunday Night

    Mostly cloudy. Low of 36F. Winds from the SSE at 5 to 10 mph.

  • Monday

    Overcast with rain. High of 48F. Winds from the South at 10 to 15 mph. Chance of rain 60%.

  • Monday Night

    Overcast with rain. Low of 41F. Winds from the SSW at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.

  • Tuesday

    Overcast with a chance of rain. Fog early. High of 43F. Winds from the NW at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Overcast with a chance of snow and a chance of rain. Fog overnight. Low of 32F with a windchill as low as 23F. Winds from the NNW at 10 to 15 mph. Chance of snow 70% with accumulations up to 3 in. possible.

  • Wednesday

    Overcast with a chance of snow and a chance of rain. High of 37F with a windchill as low as 23F. Breezy. Winds from the WNW at 15 to 20 mph. Chance of snow 60%.

  • Wednesday Night

    Clear with a chance of snow. Low of 21F with a windchill as low as 9F. Breezy. Winds from the West at 15 to 20 mph. Chance of snow 20% with accumulations up to 1 in. possible.

  • Thursday

    Overcast. Fog early. High of 50F. Winds from the SW at 10 to 15 mph.

  • Thursday Night

    Mostly cloudy. Low of 30F. Winds from the South at 10 to 15 mph.

  • Friday

    Mostly cloudy. Fog early. High of 43F. Winds from the SSW at 10 to 15 mph shifting to the WNW in the afternoon.

  • Friday Night

    Clear. Low of 16F with a windchill as low as 10F. Winds from the NW at 5 to 15 mph.

  • Saturday

    Clear. Fog early. High of 32F. Winds from the NW at 5 to 10 mph shifting to the WSW in the afternoon.

  • Saturday Night

    Clear. Low of 23F with a windchill as low as 16F. Winds from the SSW at 5 to 10 mph.

  • Sunday

    Clear. High of 30F. Winds from the WSW at 5 to 15 mph.

  • Sunday Night

    Clear. Fog overnight. Low of 23F. Winds less than 5 mph.

  • Monday

    Mostly cloudy. Fog early. High of 30F. Winds less than 5 mph.

  • Monday Night

    Overcast with a chance of snow. Fog overnight. Low of 23F. Winds less than 5 mph. Chance of snow 20% with accumulations up to 1 in. possible.

  • Tuesday

    Mostly cloudy with a chance of snow. Fog early. High of 25F with a windchill as low as 16F. Winds from the NNW at 5 to 10 mph. Chance of snow 20%.

  • Tuesday Night

    Partly cloudy. Low of 18F. Winds from the NW at 5 to 10 mph.

  • Wednesday

    Clear. High of 23F. Winds from the WNW at 5 to 10 mph.

  • Wednesday Night

    Clear. Low of 18F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Cuivre Valley, Troy, MO

Updated: 11:24 PM CST

Temperature: 39.3 °F Dew Point: 36 °F Humidity: 87% Wind: ESE at 4.0 mph Pressure: 30.29 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Settlers Pointe, Wentzville, MO

Updated: 11:20 PM CST

Temperature: 40.5 °F Dew Point: 34 °F Humidity: 78% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Providence Meadows, Wentzville, MO

Updated: 11:24 PM CST

Temperature: 40.1 °F Dew Point: 36 °F Humidity: 85% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Highland Estates, Wentzville, MO

Updated: 11:24 PM CST

Temperature: 40.8 °F Dew Point: 37 °F Humidity: 86% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Swaying Oaks, Wentzville, MO

Updated: 11:24 PM CST

Temperature: 40.5 °F Dew Point: 26 °F Humidity: 57% Wind: Calm Pressure: 29.62 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: St. Paul (SJC), OFallon, MO

Updated: 11:24 PM CST

Temperature: 40.4 °F Dew Point: 36 °F Humidity: 85% Wind: Calm Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Golf Club of Wentzville, Wentzville, MO

Updated: 11:20 PM CST

Temperature: 40.1 °F Dew Point: 36 °F Humidity: 85% Wind: SE at 1.0 mph Pressure: 29.61 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Batchtown, Batchtown, IL

Updated: 11:11 PM CST

Temperature: 39.2 °F Dew Point: 36 °F Humidity: 88% Wind: SE at 5.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Fence Post Weather, Warrenton, MO

Updated: 11:21 PM CST

Temperature: 39.2 °F Dew Point: 36 °F Humidity: 89% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Royal Oaks, O'Fallon, MO

Updated: 11:24 PM CST

Temperature: 40.6 °F Dew Point: 36 °F Humidity: 83% Wind: SSE at 4.0 mph Pressure: 30.25 in Hourly Precipitation: 0.01 in Windchill: 38 °F Graphs

Location: Crimson Oaks, Lake Saint Louis, MO

Updated: 11:23 PM CST

Temperature: 42.1 °F Dew Point: 35 °F Humidity: 76% Wind: North at - Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Hase's Lair, Warrenton, MO

Updated: 11:23 PM CST

Temperature: 39.8 °F Dew Point: 37 °F Humidity: 90% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Warrenton DALY Weather Report, Warrenton, MO

Updated: 11:18 PM CST

Temperature: 39.1 °F Dew Point: 35 °F Humidity: 86% Wind: Calm Pressure: 30.13 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Hyland Green, O'Fallon, MO

Updated: 11:24 PM CST

Temperature: 41.5 °F Dew Point: 35 °F Humidity: 78% Wind: South at 2.2 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Locksley Manor, Lake Saint Louis, MO

Updated: 11:24 PM CST

Temperature: 39.9 °F Dew Point: 33 °F Humidity: 76% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Lake Saint Louis, Lake Saint Louis, MO

Updated: 11:24 PM CST

Temperature: 40.7 °F Dew Point: 36 °F Humidity: 85% Wind: SE at 2.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Ridgepointe-Meadowbrook, Lake Saint Louis, MO

Updated: 11:24 PM CST

Temperature: 40.6 °F Dew Point: 36 °F Humidity: 84% Wind: South at 3.1 mph Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 11:24 PM CST

Temperature: 40.7 °F Dew Point: 36 °F Humidity: 83% Wind: SSE at 2.0 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Blue Ridge, Hardin, IL

Updated: 11:23 PM CST

Temperature: 38.1 °F Dew Point: 34 °F Humidity: 86% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Downtown O'Fallon, O'Fallon, MO

Updated: 11:24 PM CST

Temperature: 40.0 °F Dew Point: 32 °F Humidity: 73% Wind: SSE at 3.0 mph Pressure: 33.05 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Dardenne Prairie, Dardenne Prairie, MO

Updated: 11:23 PM CST

Temperature: 40.1 °F Dew Point: 34 °F Humidity: 79% Wind: SE at 1.1 mph Pressure: 29.71 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 11:20 PM CST

Temperature: 41.0 °F Dew Point: 36 °F Humidity: 82% Wind: SE at 3.0 mph Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: New Melle, Wentzville, MO

Updated: 11:24 PM CST

Temperature: 40.1 °F Dew Point: 36 °F Humidity: 85% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Avondale, Wentzville, MO

Updated: 11:22 PM CST

Temperature: 39.8 °F Dew Point: 37 °F Humidity: 88% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Twin Chimneys, O'Fallon, MO

Updated: 11:20 PM CST

Temperature: 40.5 °F Dew Point: 35 °F Humidity: 82% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 11:24 PM CST

Temperature: 41.2 °F Dew Point: 35 °F Humidity: 78% Wind: SW at 2.5 mph Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: O'fallon / St. Peters, St. Peters, MO

Updated: 11:24 PM CST

Temperature: 41.0 °F Dew Point: 36 °F Humidity: 82% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: The Boardwalk at WingHaven, OFallon, MO

Updated: 11:22 PM CST

Temperature: 40.8 °F Dew Point: 36 °F Humidity: 83% Wind: Calm Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 11:20 PM CST

Temperature: 40.1 °F Dew Point: 34 °F Humidity: 79% Wind: SSE at 4.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Country Crossing - Birdie Hills and Treeshadow, St. Peters, MO

Updated: 11:21 PM CST

Temperature: 40.6 °F Dew Point: 36 °F Humidity: 84% Wind: SSE at 2.7 mph Pressure: 30.09 in Hourly Precipitation: - Windchill: 41 °F Graphs

Location: Macedonia/Post Oak, Warrenton, MO

Updated: 11:20 PM CST

Temperature: 38.5 °F Dew Point: 36 °F Humidity: 89% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 38 °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 
1120 PM CST Sat Dec 20 2014 


Update: 
issued at 924 PM CST Sat Dec 20 2014 


Clouds are lingering over the entire County Warning Area this evening and will 
likely do so into the overnight hours as we are experiencing one 
of the longest nights of the year. Latest satellite observations 
has shown that low clouds are expanding slowly eastward over 
east central/southeast Illinois while there has been very little 
movement over southeast Missouri. Latest acars sounding from kstl 
shows a decent inversion between 900-850mb with plenty of moisture 
below it, and the rap keeps plenty of low level moisture over the 
County Warning Area tonight, so left cloudy skies over the County Warning Area the rest of the 
night. Also raised temperatures tonight, particularly in the 
southern and eastern counties where clearing was previously 
forecast. 


Britt 


&& 


Short term: (through late tonight) 
issued at 302 PM CST Sat Dec 20 2014 


Clouds will persist early tonight and perhaps start to decrease 
from south to north by morning. Overnight lows should be similar 
to last night in most locations. 


Kanofsky 


Long term: (sunday through next saturday) 
issued at 302 PM CST Sat Dec 20 2014 


The primary forecast issues revolve around a large low pressure 
system and a deep trough which are expected to affect the area 
between Mon and Wed. 


The ongoing gradual warming trend (highs today were generally about 
5 degrees warmer than yesterday, which in turn was a few degrees 
warmer than the previous day) will persist on Sunday and Monday. 
Monday's highs in the mid-40s to lower 50s will be around 10 
degrees above average for this time of year. 


The aforementioned low pressure system develops over the northern 
plains on Sunday and Sunday night, eventually closing off on Mon or 
Mon night within a deep trough over the central Continental U.S.. this system 
will dominate our weather through Wed, and widespread rain is likely 
as it moves into the region on Mon and Mon night. Forecast precipitable water values 
of between 0.6" and 0.8" by 00z Tue are above the 75th percentile 
and approaching +2 South Dakota for December. A cold front is expected to move 
through parts of MO/Illinois on late Mon night or Tue morning, which is 
slower timing than the models were predicting yesterday. By Tue 
afternoon or evening, some of the rain will probably switch over 
to light snow within the colder Post-frontal air mass. 
Temperatures return to near or below average behind the front. 


Meanwhile, a second vort Max is forecast to drop into the central 
Continental U.S. Trough and induce a new surface wave along the cold front 
somewhere in Texas/AR/la (a third, smaller vort Max interacts with 
the northern upper low center during this time). The resulting 
southern system then lifts northeastward on Tue and Tue night, but 
there are sufficient differences between the GFS and European model (ecmwf) to 
preclude getting more specific than schc/chc pops with a generic 
rain/snow mix. 


After the trough rotates away on Wed night or Thu, a brief period 
of upper ridging is anticipated ahead of the next disturbance. The 
12z runs of the European model (ecmwf) and GFS are in better agreement on the large 
scale pattern compared to 24hrs ago, but the forecast with this 
system will still depend on what will have happened with the 
previous system, and confidence remains low. 


Kanofsky 


&& 


Aviation: (for the 06z tafs through 06z Sunday night) 
issued at 1117 PM CST Sat Dec 20 2014 


Focus will continue to be cigs thru the period. Guidance continues 
to handle the current trends poorly across the region. Have 
therefore continued low confidence in cig heights, but believe 
overall trends are reflected in tafs. Believe conditions will 
remain largely as-is except uin becoming MVFR in the next hour or so. 
Cigs shud slowly lift sun around noon or during the afternoon. 


Specifics for kstl: expect cigs to remain in higher MVFR range 
thru much of the forecast period with sely to ssely winds aob 10 
kts. Believe cigs will lift to VFR Sun afternoon, however, exact 
timing remains uncertain. 




&& 


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


$$ 


Weather forecast office lsx 



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