Troy, Missouri Weather Conditions

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Current Conditions

  • 73°
  • Clear
  • Wind: ESE 7 mph
  • Humidity: 88%
  • Visibility: 9.0 miles
  • Dew Point: 70°
  • Pressure: 29.94 in. +

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Next 12 Hours

4  am
7  am
10  am
1  pm
4  pm
Chance of a Thunderstorm
Chance of T-storms
Partly Cloudy
Partly Cloudy
Clear
Clear
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
73°
72°
81°
84°
88°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Thunderstorm
  • High: 93 °
  • Low: 70 °
  • T-Storms
  • Saturday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 68 °
  • Chance of T-Storms
  • Sunday
  • Chance of a Thunderstorm
  • High: 88 °
  • Low: 70 °
  • Chance of T-Storms
  • Monday
  • Thunderstorm
  • High: 90 °
  • Low: 66 °
  • T-Storms
  • Tuesday
  • Partly Cloudy
  • High: 90 °
  • Low: 66 °
  • Partly Cloudy

Forecast for Troy, Missouri

Updated: 4:00 AM CDT on August 29, 2014

  • Friday

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the afternoon. High of 93F. Winds from the South at 5 to 10 mph. Chance of rain 30%.

  • Friday Night

    Mostly cloudy with thunderstorms and rain showers. Low of 70F. Winds from the SSW at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.

  • Saturday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 86F. Winds from the SW at 5 to 10 mph. Chance of rain 50%.

  • Saturday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 68F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 88F. Winds from the South at 5 to 10 mph. Chance of rain 30%.

  • Sunday Night

    Partly cloudy with a chance of a thunderstorm and a chance of rain in the evening, then overcast. Fog overnight. Low of 70F. Winds from the South at 5 to 15 mph.

  • Monday

    Overcast with thunderstorms, then a chance of a thunderstorm and rain in the afternoon. Fog early. High of 90F. Winds from the SSW at 10 to 15 mph. Chance of rain 80% with rainfall amounts near 0.9 in. possible.

  • Monday Night

    Overcast with a chance of a thunderstorm and rain. Fog overnight. Low of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.9 in. possible.

  • Tuesday

    Overcast. Fog early. High of 90F with a heat index of 99F. Winds from the WSW at 5 to 10 mph.

  • Tuesday Night

    Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 66F. Winds less than 5 mph. Chance of rain 60% with rainfall amounts near 0.7 in. possible.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm. High of 90F with a heat index of 99F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.

  • Wednesday Night

    Clear with a chance of a thunderstorm. Low of 68F. Winds from the South at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.4 in. possible.

  • Thursday

    Clear with a chance of a thunderstorm. Fog early. High of 91F. Winds from the SSW at 5 to 10 mph. Chance of rain 30%.

  • Thursday Night

    Partly cloudy. Fog overnight. Low of 66F. Winds from the SSE at 5 to 10 mph.

  • Friday

    Clear with a chance of a thunderstorm. High of 90F. Winds from the SSW at 5 to 10 mph. Chance of rain 30%.

  • Friday Night

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

  • Saturday

    Clear. High of 90F. Winds less than 5 mph.

  • Saturday Night

    Clear with a chance of a thunderstorm. Fog overnight. Low of 64F. Winds less than 5 mph. Chance of rain 40%.

  • Sunday

    Partly cloudy with a chance of a thunderstorm. High of 88F. Winds less than 5 mph. Chance of rain 40%.

  • Sunday Night

    Partly cloudy. Low of 66F. Winds less than 5 mph.

  • Monday

    Partly cloudy. High of 88F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 66F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Cuivre Valley, Troy, MO

Updated: 3:01 AM CDT

Temperature: 72.6 °F Dew Point: 71 °F Humidity: 94% Wind: ESE at 3.0 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Settlers Pointe, Wentzville, MO

Updated: 3:00 AM CDT

Temperature: 73.0 °F Dew Point: 69 °F Humidity: 86% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Swaying Oaks, Wentzville, MO

Updated: 3:00 AM CDT

Temperature: 73.2 °F Dew Point: 58 °F Humidity: 58% Wind: Calm Pressure: 29.35 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

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

Updated: 3:01 AM CDT

Temperature: 72.0 °F Dew Point: 70 °F Humidity: 95% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Golf Club of Wentzville, Wentzville, MO

Updated: 3:00 AM CDT

Temperature: 72.6 °F Dew Point: 70 °F Humidity: 90% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Batchtown, Batchtown, IL

Updated: 2:53 AM CDT

Temperature: 73.7 °F Dew Point: 73 °F Humidity: 96% Wind: SSE at 2.0 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Ken's Backyard Weather, Warrenton, MO

Updated: 3:00 AM CDT

Temperature: 78.6 °F Dew Point: 72 °F Humidity: 79% Wind: Calm Pressure: 29.24 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Royal Oaks, O'Fallon, MO

Updated: 3:00 AM CDT

Temperature: 73.0 °F Dew Point: 70 °F Humidity: 91% Wind: SSE at 2.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Hase's Lair, Warrenton, MO

Updated: 3:00 AM CDT

Temperature: 73.0 °F Dew Point: 70 °F Humidity: 91% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 70 °F Graphs

Location: Warrenton DALY Weather Report, Warrenton, MO

Updated: 2:48 AM CDT

Temperature: 73.2 °F Dew Point: 68 °F Humidity: 85% Wind: SE at 1.0 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Hyland Green, O'Fallon, MO

Updated: 3:00 AM CDT

Temperature: 75.6 °F Dew Point: 73 °F Humidity: 91% Wind: Calm Pressure: 29.55 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Locksley Manor, Lake Saint Louis, MO

Updated: 3:01 AM CDT

Temperature: 72.1 °F Dew Point: 70 °F Humidity: 94% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Ridgepointe-Meadowbrook, Lake Saint Louis, MO

Updated: 3:00 AM CDT

Temperature: 74.7 °F Dew Point: 70 °F Humidity: 85% Wind: South at 1.6 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Ofallon Civic Park, Ofallon, MO

Updated: 3:00 AM CDT

Temperature: 74.0 °F Dew Point: 70 °F Humidity: 89% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Blue Ridge, Hardin, IL

Updated: 2:48 AM CDT

Temperature: 70.8 °F Dew Point: 70 °F Humidity: 98% Wind: SE at 1.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Dardenne Prairie, Dardenne Prairie, MO

Updated: 2:57 AM CDT

Temperature: 73.4 °F Dew Point: 67 °F Humidity: 81% Wind: Calm Pressure: 29.65 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Piggy's BBQ, OFallon, MO

Updated: 3:00 AM CDT

Temperature: 74.9 °F Dew Point: 71 °F Humidity: 87% Wind: SE at 3.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: New Melle, Wentzville, MO

Updated: 3:01 AM CDT

Temperature: 73.4 °F Dew Point: 71 °F Humidity: 92% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Avondale, Wentzville, MO

Updated: 2:54 AM CDT

Temperature: 71.2 °F Dew Point: 70 °F Humidity: 97% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Twin Chimneys, O'Fallon, MO

Updated: 3:00 AM CDT

Temperature: 73.7 °F Dew Point: 70 °F Humidity: 89% Wind: WNW at 2.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

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

Updated: 3:00 AM CDT

Temperature: 76.6 °F Dew Point: 74 °F Humidity: 91% Wind: Calm Pressure: 30.13 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: The Boardwalk at WingHaven, OFallon, MO

Updated: 3:00 AM CDT

Temperature: 73.2 °F Dew Point: 70 °F Humidity: 90% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 71 °F Graphs

Location: Pennial Park, O'Fallon, MO

Updated: 3:00 AM CDT

Temperature: 73.0 °F Dew Point: 71 °F Humidity: 94% Wind: SE at 4.0 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Macedonia/Post Oak, Warrenton, MO

Updated: 3:00 AM CDT

Temperature: 71.5 °F Dew Point: 69 °F Humidity: 93% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: St. Peters, St. Peters, MO

Updated: 3:01 AM CDT

Temperature: 73.9 °F Dew Point: 70 °F Humidity: 89% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: Harmony Ridge, Cottleville, MO

Updated: 2:58 AM CDT

Temperature: 73.8 °F Dew Point: 70 °F Humidity: 87% Wind: ESE at 2.2 mph Pressure: 29.86 in Hourly Precipitation: - Heat Index: 73 °F Graphs

Location: Katie Hollow, Kampsville, IL

Updated: 3:00 AM CDT

Temperature: 72.9 °F Dew Point: 71 °F Humidity: 93% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Indian Ridge, Defiance, MO

Updated: 2:58 AM CDT

Temperature: 73.4 °F Dew Point: 70 °F Humidity: 90% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: 71 °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 
1123 PM CDT Thu Aug 28 2014 


Short term: (tonight - saturday) 
issued at 400 PM CDT Thu Aug 28 2014 


Expect that convection from this afternoon will bleed over into 
this evening before dissipating much like Wednesday night. Models 
are redeveloping some nocturnal convection ahead of the trof in 
the plains to varying degrees, with the most bullish being the GFS 
after midnight. The GFS Cranks out .75 inch along and east of the 
Mississippi River from St. Louis north. While I cannot totally 
rule out overnight convection, the low level jet is pretty weak 
and most of the isentropic lift will be well north of the area. 
Have largely discounted the GFS for these reasons and only kept 
slight chance/isolated pops overnight primarily for 
northeast/northern zones. 


Timing issues remain the primary problem for the approaching trof 
Friday through Saturday. Still thinking some scattered 
thunderstorms will be possible Friday afternoon ahead of the trof; 
but overall the models came in a bit faster with the eastward 
progression. Have sped up the introduction of likely pops Friday 
night, and ended the likely pops sooner on Saturday. Still holding 
onto a chance/slight chance pops Saturday night as warm advection 
aloft is forecast to begin again ahead of the next trof. Seasonably 
warm temperatures remain in the forecast through Saturday, though 
highs will be very dependent on convection, especially on Saturday 
afternoon. 


Carney 


Long term: (sunday - thursday) 
issued at 400 PM CDT Thu Aug 28 2014 


Sunday should be drier than Saturday as the area will be stuck 
between trofs with weak ridging overhead. Can't rule out scattered 
afternoon storms over the southeast Missouri and southern Illinois. 
The next trof in line is still forecast to move into the Midwest on 
Monday. There seems to be a little less agreement in the medium 
range models on how far the south the associated cold front will 
get. Between the European model (ecmwf) and the GFS, the ec is further south with 
the cold front, stalling it out near or just south of the I-70 
corridor while the GFS keeps it further north near a line from St. 
Joseph to Kirksville to Quincy. Regardless, it looks like another 
good chance for rain for parts of the area...primarily along and 
north of the I-70 corridor Sunday night through Monday night or even 
Tuesday. The front will move back to the north Tuesday night and 
Wednesday, but the GFS develops another round of convection Tuesday 
night which pushes the effective front south into Arkansas 
Wednesday. This looks much less likely to ME than the European model (ecmwf) 
solution which simply pushes the front back to the north and allows 
the heat to build back across the area. Stuck pretty close to the 
initial model blend for weather and temperatures Wednesday and 
Thursday which keep highs in the mid to upper 80s, but this may be 
too cool. Will monitor trends and adjust over the next couple of 
days as the models hopefully get a better handle on next week. 


Carney 


&& 


Aviation: (for the 06z tafs through 06z Friday night) 
issued at 1105 PM CDT Thu Aug 28 2014 


The GFS model appears overdone with its precipitation forecast 
late tonight and will keep tafs dry. There may be a little fog 
late tonight/early Friday morning, mainly in the St Louis Metro 
area, and especially where there was recent rainfall early this 
evening. The MOS guidance does not have as low of vsbys as it has 
forecast the past few nights. It appears that the surface wind in 
uin and cou will be a little stronger than the previous couple of 
nights. Sely surface wind late tonight will become sly on Friday 
with scattered storms expected again during the late afternoon and 
evening hours due to unstable conditions ahead of an approaching 
upper level disturbance. 


Specifics for kstl: a light sely surface wind late tonight will 
become sly on Friday and increase to 9-11 kts in the afternoon. 
Scattered diurnal cumulus clouds should develop late Friday 
morning and afternoon with scattered storms in the late afternoon 
and evening. 


Gks 


&& 


Preliminary point temperatures/pops: 
Saint Louis 75 90 73 86 / 20 20 60 60 
Quincy 72 86 69 84 / 30 40 60 40 
Columbia 70 87 69 87 / 20 40 60 40 
Jefferson City 71 88 70 87 / 20 40 60 40 
Salem 73 88 72 84 / 20 20 50 60 
Farmington 70 88 70 85 / 20 20 60 60 


&& 


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


$$ 


Weather forecast office lsx 



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