Troy, Missouri Weather Conditions

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Current Conditions

  • 64°
  • Mostly Cloudy
  • Wind: North 5 mph
  • Humidity: 73%
  • Visibility: 10.0 miles
  • Dew Point: 55°
  • Pressure: 30.16 in. -

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Next 12 Hours

1  pm
4  pm
7  pm
10  pm
1  am
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
Clear
63°
66°
61°
52°
50°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Partly Cloudy
  • High: 66 °
  • Low: 50 °
  • Partly Cloudy
  • Wednesday
  • Chance of a Thunderstorm
  • High: 72 °
  • Low: 54 °
  • Chance of a Thunderstorm
  • Thursday
  • Partly Cloudy
  • High: 72 °
  • Low: 54 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 81 °
  • Low: 59 °
  • Partly Cloudy
  • Saturday
  • Chance of Rain
  • High: 81 °
  • Low: 63 °
  • Chance of Rain

Forecast for Troy, Missouri

Updated: 10:00 AM CDT on September 16, 2014

  • Tuesday

    Partly cloudy. Fog early. High of 66F. Winds less than 5 mph.

  • Tuesday Night

    Clear in the evening, then partly cloudy. Low of 50F. Winds less than 5 mph.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 72F. Winds less than 5 mph. Chance of rain 20%.

  • Wednesday Night

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

  • Thursday

    Partly cloudy in the morning, then clear. High of 72F. Winds from the SE at 5 to 10 mph.

  • Thursday Night

    Partly cloudy. Fog overnight. Low of 54F. Winds from the ESE at 5 to 10 mph.

  • Friday

    Partly cloudy. Fog early. High of 81F. Winds from the SE at 5 to 10 mph.

  • Friday Night

    Partly cloudy in the evening, then overcast. Low of 59F. Winds from the SSE at 5 to 10 mph.

  • Saturday

    Overcast with a chance of rain in the afternoon. High of 81F. Winds from the SSE at 5 to 10 mph. Chance of rain 20%.

  • Saturday Night

    Overcast with a chance of a thunderstorm. Fog overnight. Low of 63F. Winds from the South at 10 to 15 mph. Chance of rain 80% with rainfall amounts near 1.2 in. possible.

  • Sunday

    Clear. High of 79F. Winds from the NW at 10 to 15 mph.

  • Sunday Night

    Clear. Low of 54F. Winds from the NW at 5 to 10 mph.

  • Monday

    Clear. High of 77F. Winds less than 5 mph.

  • Monday Night

    Clear. Fog overnight. Low of 48F. Winds from the NE at 5 to 10 mph.

  • Tuesday

    Clear. High of 75F. Winds from the NE at 5 to 10 mph.

  • Tuesday Night

    Clear. Low of 46F. Winds less than 5 mph.

  • Wednesday

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

  • Wednesday Night

    Clear. Low of 46F. Winds less than 5 mph.

  • Thursday

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

  • Thursday Night

    Clear. Low of 50F. Winds less than 5 mph.

  • Friday

    Clear. High of 72F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 50F. Winds from the SSW at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Cuivre Valley, Troy, MO

Updated: 2:27 PM CDT

Temperature: 58.8 °F Dew Point: 54 °F Humidity: 84% Wind: NNE at 2.3 mph Pressure: 30.20 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Settlers Pointe, Wentzville, MO

Updated: 2:25 PM CDT

Temperature: 61.4 °F Dew Point: 53 °F Humidity: 74% Wind: Calm Pressure: 30.13 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Providence Meadows, Wentzville, MO

Updated: 2:27 PM CDT

Temperature: 62.9 °F Dew Point: 56 °F Humidity: 78% Wind: Calm Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Highland Estates, Wentzville, MO

Updated: 2:27 PM CDT

Temperature: 62.0 °F Dew Point: 57 °F Humidity: 84% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Swaying Oaks, Wentzville, MO

Updated: 2:27 PM CDT

Temperature: 66.6 °F Dew Point: 46 °F Humidity: 48% Wind: Calm Pressure: 29.56 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Bear Creek, Wentzville, MO

Updated: 2:27 PM CDT

Temperature: 61.3 °F Dew Point: 55 °F Humidity: 79% Wind: North at - Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 2:27 PM CDT

Temperature: 61.6 °F Dew Point: 56 °F Humidity: 82% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Golf Club of Wentzville, Wentzville, MO

Updated: 2:25 PM CDT

Temperature: 62.2 °F Dew Point: 56 °F Humidity: 80% Wind: North at 4.0 mph Pressure: 30.13 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Batchtown, Batchtown, IL

Updated: 2:20 PM CDT

Temperature: 63.1 °F Dew Point: 57 °F Humidity: 79% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Fence Post Weather, Warrenton, MO

Updated: 2:21 PM CDT

Temperature: 61.6 °F Dew Point: 57 °F Humidity: 85% Wind: Calm Pressure: 30.17 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Royal Oaks, O'Fallon, MO

Updated: 2:27 PM CDT

Temperature: 61.6 °F Dew Point: 56 °F Humidity: 82% Wind: NNE at 5.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Crimson Oaks, Lake Saint Louis, MO

Updated: 2:26 PM CDT

Temperature: 68.3 °F Dew Point: 57 °F Humidity: 66% Wind: North at - Pressure: 30.12 in Hourly Precipitation: - Heat Index: - Graphs

Location: Hase's Lair, Warrenton, MO

Updated: 2:25 PM CDT

Temperature: 59.8 °F Dew Point: 54 °F Humidity: 82% Wind: Calm Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Warrenton DALY Weather Report, Warrenton, MO

Updated: 2:18 PM CDT

Temperature: 60.9 °F Dew Point: 53 °F Humidity: 76% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Hyland Green, O'Fallon, MO

Updated: 2:27 PM CDT

Temperature: 63.9 °F Dew Point: 56 °F Humidity: 77% Wind: Calm Pressure: 29.76 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Locksley Manor, Lake Saint Louis, MO

Updated: 2:27 PM CDT

Temperature: 64.4 °F Dew Point: 55 °F Humidity: 71% Wind: Calm Pressure: 30.12 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET Lake Saint Louis MO US, Lake Saint Louis, MO

Updated: 1:55 PM CDT

Temperature: 63 °F Dew Point: 57 °F Humidity: 81% Wind: NNE at 1 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ridgepointe-Meadowbrook, Lake Saint Louis, MO

Updated: 2:27 PM CDT

Temperature: 63.7 °F Dew Point: 56 °F Humidity: 75% Wind: SSW at 2.0 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 2:27 PM CDT

Temperature: 62.3 °F Dew Point: 55 °F Humidity: 78% Wind: NNW at 1.0 mph Pressure: 30.17 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Blue Ridge, Hardin, IL

Updated: 2:19 PM CDT

Temperature: 64.8 °F Dew Point: 55 °F Humidity: 70% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 2:27 PM CDT

Temperature: 65.0 °F Dew Point: 55 °F Humidity: 70% Wind: North at 5.0 mph Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Dardenne Prairie, Dardenne Prairie, MO

Updated: 2:27 PM CDT

Temperature: 63.2 °F Dew Point: 55 °F Humidity: 75% Wind: NE at 2.5 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 2:24 PM CDT

Temperature: 63.3 °F Dew Point: 56 °F Humidity: 76% Wind: NE at 2.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: New Melle, Wentzville, MO

Updated: 2:27 PM CDT

Temperature: 63.9 °F Dew Point: 57 °F Humidity: 79% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Avondale, Wentzville, MO

Updated: 2:26 PM CDT

Temperature: 63.3 °F Dew Point: 57 °F Humidity: 80% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Twin Chimneys, O'Fallon, MO

Updated: 2:25 PM CDT

Temperature: 63.7 °F Dew Point: 55 °F Humidity: 74% Wind: SSE at 2.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 2:27 PM CDT

Temperature: 67.0 °F Dew Point: 58 °F Humidity: 73% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 2:27 PM CDT

Temperature: 65.1 °F Dew Point: 62 °F Humidity: 89% Wind: Calm Pressure: 30.35 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: The Boardwalk at WingHaven, OFallon, MO

Updated: 2:24 PM CDT

Temperature: 66.6 °F Dew Point: 58 °F Humidity: 73% Wind: Calm Pressure: 30.14 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 2:25 PM CDT

Temperature: 71.0 °F Dew Point: 58 °F Humidity: 63% Wind: WNW at 3.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Macedonia/Post Oak, Warrenton, MO

Updated: 2:25 PM CDT

Temperature: 63.3 °F Dew Point: 57 °F Humidity: 79% Wind: East at 1.0 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: St. Peters, St. Peters, MO

Updated: 2:27 PM CDT

Temperature: 67.6 °F Dew Point: 58 °F Humidity: 72% Wind: Calm Pressure: 30.13 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 2:24 PM CDT

Temperature: 69.4 °F Dew Point: 58 °F Humidity: 66% Wind: WNW at 2.7 mph Pressure: 30.06 in Hourly Precipitation: - Heat Index: - Graphs

Location: Katie Hollow, Kampsville, IL

Updated: 2:27 PM CDT

Temperature: 64.8 °F Dew Point: 54 °F Humidity: 69% Wind: Calm Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: - 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 
657 am CDT Tue Sep 16 2014 


Short term: (through late this afternoon) 
issued at 330 am CDT Tue Sep 16 2014 


Predawn low cloud imagery indicates that southward progress of 
clearing line (near a sante fe-Barry line at 0745z) is agonizingly 
slow, probably in part due to low level flow taking on a bit of an 
eastward component. Extrapolation of the back edge of the clouds 
suggests clearing reaching a kvih-kstl-kmto line by around 15z, with 
forecast soundings then indicating the clearing accelerating across 
the southeast half of the County Warning Area during the late morning and early 
afternoon due to combination of the southward advection of drier air 
as well as fairly strong mid-September sunshine. Will also continue 
a mention of early morning patchy fog for those areas that are 
expected to be mostly clear by 11z, as T/TD spreads in northern 
areas are fairly low. 


Highs should be in the 60s over most of the forecast area. 


Truett 


Long term: (tonight through monday) 
issued at 330 am CDT Tue Sep 16 2014 


Showers and storms may move into central MO late tonight due to 
low-mid level warm air advection ahead of a weak northwest flow 
shortwave, and as return flow on the backside of the surface ridge 
shifting east of the region brings low level moisture and 
instability back to southwest MO. The potential for convection will 
continue Wednesday and Wednesday night, mainly across central and 
southeast MO along and north of a weak warm front. A strong surface 
ridge will build south southeastward through the Great Lakes region 
Wednesday night and Thursday which should bring slightly drier and 
more stable air southwestward into our region, likely ending the 
threat for any convection even across the southwestern portion of 
our forecast area Thursday and Thursday night. Warmer temperatures 
can be expected on Friday as an upper level ridge shifts eastward 
into MO and southerly surface/low level flow strengthens over the 
region. Strong shortwaves will break down this upper level ridge 
and send a cold front southeastward through our forecast area 
Saturday night and Sunday morning. This should lead to the best 
chance of rain during this forecast period, beginning Saturday 
afternoon and ending Sunday morning. Colder air will move into the 
region behind this front, plus the European model (ecmwf) model also has deep upper 
level troffing moving eastward through the northern plains and 
Great Lakes region Sunday and Sunday night resulting in below 
normal temperatures to start the next work week. The GFS model is 
a little slower with the upper level trough and hence also slower 
bringing the coolest air into our region. 


Gks 


&& 


Aviation: (for the 12z tafs through 12z Wednesday morning) 
issued at 638 am CDT Tue Sep 16 2014 


Over the past several hours the N edge of stratus deck has become 
increasingly ragged, and at 1115z roughly stretched from just 
south of kspi to near kmhl with a secondary large hole developing 
in the cloud deck over SW Illinois just east of stl Metro area. Believe 
these trends indicate that the drier air is beginning to make 
inroads into the lower level moisture. The cloud deck will be 
south of KUIN this morning, although some fog is still possible 
with low T/TD spreads. Low clouds have also exited kcou which will 
also make it suspectable to fog; however am also seeing a 
westward expansion of the low cloud deck just E of kmyj, so 
believe that back edge of stratus may clip kcou in the 14-15z 
time frame. For stl Metro sites have followed trends of obs in and 
north of area, with a mix of MVFR ceilings/vsbys and occasional 
IFR cigs for several more hours, followed by the low cloud deck 
scattering out by late morning. By afternoon, clouds throughout 
the forecast area should be limited to scattered cumulus/SC aoa 3kft. 


Specifics for kstl: although hole has developed in cloud deck E of 
kstl, northerly low level trajectories should mean prevailing MVFR 
ceilings aob 1500 ft through 15z, with lower stratus occasionally 
producing vsbys 3-5sm and cigs 700-900ft. Believe there should be 
a rapid improvement 16-17z, with scattered clouds aoa 3kft for the 
afternoon hours. 


Truett 


&& 


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


$$ 


Weather forecast office lsx 












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