Troy, Missouri Weather Conditions

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 70°
  • Clear
  • Wind: SSE 8 mph
  • Humidity: 78%
  • Visibility: 10.0 miles
  • Dew Point: 63°
  • Pressure: 30.09 in. -

Select a Section

Click a section below for more information.

Next 12 Hours

9  am
12  pm
3  pm
6  pm
9  pm
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
65°
77°
82°
80°
71°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Partly Cloudy
  • High: 84 °
  • Low: 65 °
  • Partly Cloudy
  • Saturday
  • Overcast
  • High: 84 °
  • Low: 64 °
  • Overcast
  • Sunday
  • Clear
  • High: 87 °
  • Low: 62 °
  • Clear
  • Monday
  • Clear
  • High: 90 °
  • Low: 65 °
  • Clear
  • Tuesday
  • Clear
  • High: 92 °
  • Low: 68 °
  • Clear

Forecast for Troy, Missouri

Updated: 7:51 AM CDT on January 28, 2015

  • Friday

    Sun and clouds mixed. High 84F. Winds SSE at 10 to 15 mph.

  • Friday Night

    Cloudy. A stray shower or thunderstorm is possible. Low around 65F. Winds S at 5 to 10 mph.

  • Saturday

    Cloudy skies. A stray shower or thunderstorm is possible. High 84F. Winds W at 5 to 10 mph.

  • Saturday Night

    Isolated thunderstorms during the evening, then skies turning partly cloudy overnight. Low 64F. Winds light and variable. Chance of rain 30%.

  • Sunday

    A few clouds early, otherwise mostly sunny. High 87F. Winds light and variable.

  • Sunday Night

    Mainly clear. Low 62F. Winds light and variable.

  • Monday

    Sunny skies. High near 90F. Winds light and variable.

  • Monday Night

    A mostly clear sky. Low near 65F. Winds light and variable.

  • Tuesday

    Sunny, along with a few afternoon clouds. High 92F. Winds SSW at 5 to 10 mph.

  • Tuesday Night

    Generally fair. Low 68F. Winds light and variable.

  • Wednesday

    Sunshine along with some cloudy intervals. High 93F. Winds SSW at 5 to 10 mph.

  • Wednesday Night

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

  • Thursday

    Mainly sunny. High 93F. Winds S at 5 to 10 mph.

  • Thursday Night

    A mostly clear sky. Low 67F. Winds light and variable.

  • Friday

    Sunny skies. High 91F. Winds E at 5 to 10 mph.

  • Friday Night

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

  • Saturday

    A mainly sunny sky. High 91F. Winds E at 5 to 10 mph.

  • Saturday Night

    Clear skies. Low 68F. Winds E at 5 to 10 mph.

  • Sunday

    A mainly sunny sky. High 91F. Winds ESE at 5 to 10 mph.

  • Sunday Night

    Mostly clear skies. Low 67F. Winds light and variable.

  • Monday

    Partly cloudy with a slight chance of showers and thunderstorms, mainly during the morning hours. High near 90F. Winds SSE at 5 to 10 mph. Chance of rain 30%.

  • Monday Night

    Variable clouds with scattered thunderstorms. Low 68F. Winds light and variable. Chance of rain 50%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Settlers Pointe, Wentzville, MO

Updated: 9:39 AM CDT

Temperature: 72.4 °F Dew Point: 62 °F Humidity: 70% Wind: SE at 2.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Providence Meadows, Wentzville, MO

Updated: 9:42 AM CDT

Temperature: 72.8 °F Dew Point: 64 °F Humidity: 73% Wind: SE at 1.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Bear Creek, Wentzville, MO

Updated: 9:41 AM CDT

Temperature: 71.8 °F Dew Point: 62 °F Humidity: 71% Wind: North at - Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

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

Updated: 9:42 AM CDT

Temperature: 72.5 °F Dew Point: 66 °F Humidity: 79% Wind: West at 1.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Golf Club of Wentzville, Wentzville, MO

Updated: 9:40 AM CDT

Temperature: 73.4 °F Dew Point: 64 °F Humidity: 72% Wind: SSE at 3.0 mph Pressure: 29.48 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: APRSWXNET, Batchtown, IL

Updated: 8:26 AM CDT

Temperature: 66 °F Dew Point: 64 °F Humidity: 93% Wind: SE at 2 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Weather from the Roof, Warrenton, MO

Updated: 9:42 AM CDT

Temperature: 70.3 °F Dew Point: 60 °F Humidity: 70% Wind: SSE at 7.2 mph Pressure: 30.11 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Fence Post Weather, Warrenton, MO

Updated: 9:41 AM CDT

Temperature: 69.5 °F Dew Point: 64 °F Humidity: 83% Wind: SSE at 2.0 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Royal Oaks, O'Fallon, MO

Updated: 9:42 AM CDT

Temperature: 71.6 °F Dew Point: 64 °F Humidity: 76% Wind: SSE at 6.0 mph Pressure: 30.08 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Crimson Oaks, Lake Saint Louis, MO

Updated: 9:41 AM CDT

Temperature: 76.3 °F Dew Point: 65 °F Humidity: 69% Wind: North at - Pressure: 29.47 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Hase's Lair, Warrenton, MO

Updated: 9:41 AM CDT

Temperature: 69.6 °F Dew Point: 64 °F Humidity: 82% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Hyland Green, O'Fallon, MO

Updated: 9:42 AM CDT

Temperature: 74.5 °F Dew Point: 61 °F Humidity: 63% Wind: SSE at 11.4 mph Pressure: 29.57 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: O'Fallon Water Treatment Plant, OFallon, MO

Updated: 9:40 AM CDT

Temperature: 72.6 °F Dew Point: 65 °F Humidity: 76% Wind: SSE at 2.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Locksley Manor, Lake Saint Louis, MO

Updated: 9:42 AM CDT

Temperature: 68.4 °F Dew Point: 62 °F Humidity: 81% Wind: Calm Pressure: 30.81 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Conch Terrace, O'Fallon, MO

Updated: 9:38 AM CDT

Temperature: 68.0 °F Dew Point: 63 °F Humidity: 84% Wind: North at - Pressure: 30.20 in Hourly Precipitation: - Heat Index: - Graphs

Location: Lake Saint Louis, Lake Saint Louis, MO

Updated: 9:42 AM CDT

Temperature: 71.6 °F Dew Point: 64 °F Humidity: 77% Wind: SSE at 5.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 9:41 AM CDT

Temperature: 73.3 °F Dew Point: 63 °F Humidity: 71% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Magnolia, OFallon, MO

Updated: 9:29 AM CDT

Temperature: 70.0 °F Dew Point: 63 °F Humidity: 79% Wind: WSW at 2.7 mph Pressure: 29.81 in Hourly Precipitation: - Heat Index: - Graphs

Location: Blue Ridge, Hardin, IL

Updated: 9:29 AM CDT

Temperature: 69.9 °F Dew Point: 65 °F Humidity: 84% Wind: ESE at 2.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 9:40 AM CDT

Temperature: 72.4 °F Dew Point: 62 °F Humidity: 70% Wind: SSE at 7.0 mph Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Public Works Department Building, OFallon, MO

Updated: 9:40 AM CDT

Temperature: 75.4 °F Dew Point: 63 °F Humidity: 66% Wind: East at 2.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Fox Haven, OFallon, MO

Updated: 9:41 AM CDT

Temperature: 72.6 °F Dew Point: 65 °F Humidity: 76% Wind: SSW at 3.0 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Winghaven, OFallon, MO

Updated: 9:29 AM CDT

Temperature: 72.3 °F Dew Point: 64 °F Humidity: 76% Wind: East at 2.7 mph Pressure: 30.04 in Hourly Precipitation: - Heat Index: 74 °F Graphs

Location: Alpine Ridge, OFallon, MO

Updated: 9:40 AM CDT

Temperature: 70.0 °F Dew Point: 62 °F Humidity: 77% Wind: SSW at 2.9 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 9:42 AM CDT

Temperature: 69.4 °F Dew Point: 67 °F Humidity: 92% Wind: Calm Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ridgetop Estates, OFallon, MO

Updated: 9:29 AM CDT

Temperature: 72.9 °F Dew Point: 62 °F Humidity: 70% Wind: SSE at 2.7 mph Pressure: 30.16 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: Little Oaks Drive, O'Fallon, MO

Updated: 9:38 AM CDT

Temperature: 68.7 °F Dew Point: 64 °F Humidity: 84% Wind: North at - Pressure: 30.16 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: The Boardwalk at WingHaven, OFallon, MO

Updated: 9:41 AM CDT

Temperature: 71.2 °F Dew Point: 63 °F Humidity: 76% Wind: SSW at 2.9 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Heat Index: 73 °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 
629 am CDT Friday Aug 28 2015 


Short term: (through late this afternoon) 
issued at 340 am CDT Friday Aug 28 2015 


Middle and high clouds associated with showers and thunderstorms 
continue to stream in across forecast area early this morning ahead 
of cold front. Despite low level moisture that will be on the 
increase today on southerly flow ahead of the cold front, there is a 
lot of dry air to overcome. Feel that best chances of some showers 
and a few thunderstorms will be over central and northeast Missouri 
as well as west central Illinois, but coverage will be scattered. 
Otherwise, temperatures to remain a bit below normal in the low to 
middle 80s. 


Byrd 


Long term: (tonight through thursday) 
issued at 340 am CDT Friday Aug 28 2015 


There is good agreement in the 00z guidance that frontal 
boundary and associated shortwave should allow thunderstorms 
threat to slowly expand over the northwest half of the County Warning Area 
tonight...with the stl metropolitan likely on the eastern edge of the 
threat during the predawn hours. Due to prognosticated low level 
forcing ahead of the front, have upped probability of precipitation into likely category 
over our extreme northwest counties. 


However...from Saturday morning on features and model specifics 
begin to diverge and become increasing nebulous. While models do 
agree that northern portion of the shortwave will continue to press 
into the lower Great Lakes during the day...they disagree with their 
handling of the southern portion of the shortwave energy as it 
stretches southeast and possibly merging with another weak 
circulation along the Gulf Coast (which appears to originate with 
a bit of energy that breaks off from the base of the current East 
Coast trof). GFS and NAM suggest some type of remnant circulation 
taking up residence in the vicinity of SW MO by Sunday with 
residual surface front becoming stationary over the area...while 
European model (ecmwf) wants to push the increasingly weak shortwave energy and 
surface boundary south with time. 


If NAM and GFS solutions do come to fruition on Sunday...and if NAM 
low level moisture forecast (which is often too high) also 
verifies...then the dry forecast on Sunday will be in jeopardy. 
However...would like to see additional support for these weak 
features and trends before reintroducing convection on Sunday. So 
for now have continued to trend the forecast to the European model (ecmwf) 
solution...namely thundestorm chances expanding southeast across the 
County Warning Area during the day on Saturday then gradually diminishing from northwest to 
southeast late Saturday afternoon and Saturday night. 


Despite the discrepancy in the upper air forecasts on Sunday...medium range 
solutions remain in good run to run and model to model agreement 
that western ridge willl be expanding east into the middle Mississippi 
and Ohio valleys during the upcoming week. This should mean dry 
weather for the forecast area...along with temperatures rebounding to late 
Summer levels with highs in the upper 80s-lower 90s. 


Truett 
&& 


Aviation: (for the 12z tafs through 12z Saturday morning) 
issued at 621 am CDT Friday Aug 28 2015 


VFR conditions to persist through the forecast period. In the 
meantime, next frontal boundary to approach region. Showers and 
thunderstorms will be scattered in nature and hard to pin down if 
they will affect taf sites, so kept tafs dry for now. Did add 
vicinity ts mention for KUIN and kcou after 06z-07z Saturday. 
Otherwise, light southeast to south winds to pickup to between 10 
and 15 kts by middle morning, before diminishing this evening. 


Specifics for kstl: 
VFR conditions to persist through the forecast period. In the 
meantime, next frontal boundary to approach region. Showers and 
thunderstorms will be scattered in nature and hard to pin down if 
they will affect Metro, so kept taf dry for now. Otherwise, light 
southeast winds to pickup from the south between 10 and 15 kts by 
16z Friday, before diminishing this evening. 


Byrd 
&& 


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


$$ 
Weather forecast office lsx 



National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.