Saint Ann, Missouri Weather Conditions

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Current Conditions

  • 53°
  • Mostly Cloudy
  • Wind: West 17 mph
  • Humidity: 37%
  • Visibility: 10.0 miles
  • Dew Point: 27°
  • Pressure: 29.91 in. 0

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Next 12 Hours

2  pm
5  pm
8  pm
11  pm
2  am
Overcast
Overcast
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
55°
50°
44°
39°
36°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Sunday
  • Overcast
  • High: 55 °
  • Low: 30 °
  • Overcast
  • Monday
  • Partly Cloudy
  • High: 31 °
  • Low: 17 °
  • Partly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 26 °
  • Low: 14 °
  • Partly Cloudy
  • Wednesday
  • Partly Cloudy
  • High: 27 °
  • Low: 16 °
  • Partly Cloudy
  • Thursday
  • Partly Cloudy
  • High: 36 °
  • Low: 25 °
  • Partly Cloudy

Forecast for Saint Ann, Missouri

Updated: 1:00 PM CST on January 07, 2016

  • Sunday

    Cloudy. High around 55F. Winds W at 15 to 25 mph.

  • Sunday Night

    Becoming windy with snow showers overnight. Low near 30F. Winds WNW at 20 to 30 mph. Chance of snow 40%. Winds could occasionally gust over 40 mph.

  • Monday

    Overcast skies and windy. High 31F. Winds NW at 20 to 30 mph. Winds could occasionally gust over 40 mph.

  • Monday Night

    Cloudy with gusty winds. A few flurries or snow showers possible. Low 17F. Winds NW at 20 to 30 mph.

  • Tuesday

    Cloudy skies early will become partly cloudy later in the day. High 26F. Winds NW at 15 to 25 mph.

  • Tuesday Night

    Clear to partly cloudy. Low 14F. Winds NW at 15 to 25 mph.

  • Wednesday

    Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 27F. Winds NW at 10 to 20 mph.

  • Wednesday Night

    A few clouds from time to time. A few flurries or snow showers possible. Low 16F. Winds NNW at 5 to 10 mph.

  • Thursday

    Partly cloudy skies. High 36F. Winds E at 5 to 10 mph.

  • Thursday Night

    Cloudy early with partial clearing expected late. Low around 25F. Winds ENE at 5 to 10 mph.

  • Friday

    Intervals of clouds and sunshine in the morning with more clouds for later in the day. High 39F. Winds N at 10 to 15 mph.

  • Friday Night

    Partly cloudy skies. Low 24F. Winds N at 5 to 10 mph.

  • Saturday

    Mainly sunny. High 34F. Winds N at 10 to 15 mph.

  • Saturday Night

    Clear skies. Low 23F. Winds E at 5 to 10 mph.

  • Sunday

    Intervals of clouds and sunshine. High 36F. Winds SE at 10 to 15 mph.

  • Sunday Night

    Cloudy skies with late-night snow showers. Low near 30F. Winds SSE at 10 to 15 mph. Chance of snow 50%. Snow accumulations less than one inch.

  • Monday

    Snow flurries and snow showers. High 38F. Winds SW at 10 to 15 mph. Chance of snow 60%. About one inch of snow expected.

  • Monday Night

    Snow showers before midnight. Becoming partly cloudy later. Low near 30F. Winds WSW at 5 to 10 mph. Chance of snow 50%. Snow accumulations less than one inch.

  • Tuesday

    Sunshine in the morning followed by mostly cloudy skies during the afternoon. High near 45F. Winds WSW at 10 to 15 mph.

  • Tuesday Night

    A few clouds. Low 31F. Winds WSW at 5 to 10 mph.

  • Wednesday

    Intervals of clouds and sunshine. High 48F. Winds W at 10 to 15 mph.

  • Wednesday Night

    A few clouds. Low 32F. Winds SW at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: APRSWXNET, Woodson Terrace, MO

Updated: 2:59 PM CST

Temperature: 52 °F Dew Point: 28 °F Humidity: 39% Wind: West at 4 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Graphs

Location: Starrco - Maryland Heights Mo, Maryland Heights, MO

Updated: 3:12 PM CST

Temperature: 52.7 °F Dew Point: 31 °F Humidity: 44% Wind: WSW at 5.8 mph Pressure: 29.74 in Hourly Precipitation: - Graphs

Location: APRSWXNET, Saint Louis, MO

Updated: 3:07 PM CST

Temperature: 52 °F Dew Point: 33 °F Humidity: 48% Wind: WNW at 1 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Graphs

Location: Residential Subdivision, St. Louis, MO

Updated: 3:23 PM CST

Temperature: 52.7 °F Dew Point: 30 °F Humidity: 41% Wind: West at 5.8 mph Pressure: 29.76 in Hourly Precipitation: - Graphs

Location: Earth City, Earth City, MO

Updated: 4:23 PM EST

Temperature: 52.4 °F Dew Point: 31 °F Humidity: 45% Wind: WSW at 11.0 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

Location: Rule Place Court, Maryland Heights, MO

Updated: 3:23 PM CST

Temperature: 52.3 °F Dew Point: 31 °F Humidity: 44% Wind: North at - Pressure: 29.72 in Hourly Precipitation: - Graphs

Location: APRSWXNET, Saint Louis, MO

Updated: 2:58 PM CST

Temperature: 52 °F Dew Point: 32 °F Humidity: 46% Wind: WNW at 5 mph Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

Location: Honeygrove Court, Saint Louis, MO

Updated: 3:22 PM CST

Temperature: 53.8 °F Dew Point: 32 °F Humidity: 44% Wind: North at - Pressure: 29.91 in Hourly Precipitation: - Graphs

Location: Ross Ave, St. Louis, MO

Updated: 3:14 PM CST

Temperature: 53.1 °F Dew Point: 36 °F Humidity: 53% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

Location: Whispering Hills, Creve Coeur, MO

Updated: 3:26 PM CST

Temperature: 53.0 °F Dew Point: 33 °F Humidity: 46% Wind: NW at 5.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Graphs

Location: Fruit Tree Lane, St. Louis, MO

Updated: 3:23 PM CST

Temperature: 52.7 °F Dew Point: 31 °F Humidity: 43% Wind: North at - Pressure: 30.01 in Hourly Precipitation: 0.00 in Graphs

Location: Morehouse Lane, University City, MO

Updated: 3:21 PM CST

Temperature: 52.3 °F Dew Point: 34 °F Humidity: 49% Wind: North at - Pressure: 29.97 in Hourly Precipitation: - Graphs

Location: Riverwood Place, Florissant, MO

Updated: 3:26 PM CST

Temperature: 53.5 °F Dew Point: 32 °F Humidity: 44% Wind: East at 2.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Graphs

Location: Roland Boulevard, Saint Louis, MO

Updated: 3:23 PM CST

Temperature: 52.5 °F Dew Point: 32 °F Humidity: 46% Wind: North at - Pressure: 29.74 in Hourly Precipitation: 0.00 in Graphs

Location: Creve Coeur, Saint Louis, MO

Updated: 3:26 PM CST

Temperature: 53.2 °F Dew Point: 28 °F Humidity: 38% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Graphs

Location: Ladue Manor, Saint Louis, MO

Updated: 3:26 PM CST

Temperature: 52.7 °F Dew Point: 25 °F Humidity: 34% Wind: WNW at 5.6 mph Pressure: 30.60 in Hourly Precipitation: 0.00 in Graphs

Location: Creve Coeur Airport, Maryland Heights, MO

Updated: 3:22 PM CST

Temperature: 53.4 °F Dew Point: 34 °F Humidity: 47% Wind: NNE at 7.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Graphs

Location: The Batcave, University City, MO

Updated: 3:26 PM CST

Temperature: 54.5 °F Dew Point: 6 °F Humidity: 14% Wind: WSW at 6.7 mph Pressure: 29.61 in Hourly Precipitation: 0.00 in Graphs

Location: Forsyth Boulevard, Clayton, MO

Updated: 3:23 PM CST

Temperature: 54.0 °F Dew Point: 32 °F Humidity: 43% Wind: North at - Pressure: 29.88 in Hourly Precipitation: - Graphs

Location: Chesterfield (East), Chesterfield, MO

Updated: 3:25 PM CST

Temperature: 51.1 °F Dew Point: 32 °F Humidity: 48% Wind: NW at 7.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Graphs

Location: Royalgate Subdivision, Creve Coeur, MO

Updated: 3:26 PM CST

Temperature: 53.2 °F Dew Point: 30 °F Humidity: 41% Wind: NE at 3.1 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Graphs

Location: Lake Forest Drive, Clayton, MO

Updated: 3:21 PM CST

Temperature: 56.1 °F Dew Point: 36 °F Humidity: 46% Wind: North at - Pressure: 29.19 in Hourly Precipitation: - Graphs

Location: Talbridge, St. Charles, MO

Updated: 3:26 PM CST

Temperature: 52.5 °F Dew Point: 32 °F Humidity: 46% Wind: WSW at 7.4 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Graphs

Location: Lindenwood, St. Charles, MO

Updated: 3:26 PM CST

Temperature: 53.0 °F Dew Point: 33 °F Humidity: 46% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Graphs

Location: DeBaliviere Place, St. Louis, MO

Updated: 3:22 PM CST

Temperature: 51.6 °F Dew Point: 29 °F Humidity: 42% Wind: North at - Pressure: 29.87 in Hourly Precipitation: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service St Louis MO 
320 PM CST sun Feb 7 2016 


Short term: (through Monday afternoon) 
issued at 320 PM CST sun Feb 7 2016 


Between a passage of the initial cold front thru the region by early 
this afternoon and/or thickening cloud cover, temps have largely 
already hit their daily maxes and will either stagnate or slowly 
begin to fall, after having resulted in another mild day, with Max 
temps in the upper 40s to mid 50s. 


A strengthening upper low over The Arrowhead region of Minnesota will 
help govern the tracks of various disturbances around it over the 
next couple of days as it digs the flow to be more from the N-NW. 


The first few disturbances are starting to come into focus now 
and we can, with some degree of confidence, focus on the tracks and 
timing. The first is over northwest MO and is helping to kick off 
some pcpn echo over the MO-Iowa border just downstream from it. This 
is liquid pcpn. This disturbance will essentially drop straight 
southward, with some east movement, and should help to perhaps kick 
off light rain or sprinkles this evening for parts of central and 
southeast MO, and perhaps into far southern Illinois. The pcpn-type is 
expected to remain liquid with temps still in the 40s for most areas 
during this time. 


The second disturbance is located near Sioux Falls, South Dakota (kfsd), and 
will have more of a true southeast movement to it, likely tracking thru The 
Heart of our County Warning Area from late this evening thru the overnight. This 
will have better coverage pcpn with it, and due to its forward 
speed, now looks like it will outrun the surface cold air a bit and 
probably begin as rain showers for an hour or so, then changing to 
snow showers. Overall preferred warmer MOS temps but diffs were 
very small, and temps by daybreak at most locations will be at or 
below freezing. 


The third disturbance is more directly associated with the storm 
center over the Minnesota arrowhead, and as that digs, will track more S 
initially then southeast late, and will likely affect areas near the MS 
river and east during Monday morning and early afternoon. 
Pcpn-types here will be all snow, with temps probably not rising from 
previous nighttime mins at all, and probably losing a few degrees by 
mid-afternoon. 


Low level cold air advection will strengthen significantly after midnight tonight 
and will remain decently strong thru the day on Monday, and will 
also be accompanied by an increase in northwest wind and gusts to 35mph 
most locations with some 40mph possible in northeast and central MO. 


The wind combined with the scattered snow showers that will be 
ongoing will result in rapidly fluctuating visibilities, but lower 
liquid to snow ratios than one might expect for cold air like this, 
due to the well sifted nature of any snow that does accumulate, and 
leaned strongly towards 12-15:1 versus te model suggested 20:1. 
Snow accums for most locations should be just a dusting of snow, but 
where discrete snow bands can set up and persist for a period of 
time, we could see localized accums of an inch or more. Any 
identification of the location of these discrete snow bands will 
likely have to be now-casted, with the forecast amounts strongly 
weighted towards the median, and not the exception. 


Due to the anticipated localized nature of any accums beyond a 
dusting, no winter headlines will be issued at this time. 


Tes 


Long term: (monday night through next sunday) 
issued at 320 PM CST sun Feb 7 2016 


Deep cyclonic flow and additional, yet sheared, disturbances will 
only allow the threat for snow showers to slowly retreat eastward 
and may allow flurries well into Tuesday. One trend that all of the 
models have settled on is for this Arctic airmass to build over our 
region first before heading east, and will thus prolong its presence 
here--likely into Thursday--as well as prolonging the moderately 
strong wind with gusts at times at least into Wednesday. This will 
create the threat for Wind Chill Advisory criteria (-15f) to be met 
late Tuesday night into Wednesday morning for some areas in northern 
MO and central Illinois. 


Otherwise, northwest flow aloft continues into next weekend. Very low 
confidence on any additional wx-making disturbances track/timing and 
have kept the forecast dry because of it. Something that could 
change in a couple of days, so stay tuned. Temps remain below 
average, though, with perhaps some recovery back to near average by 
Thursday-Friday. 


Of better confidence is another intrusion of Arctic air for late 
week, around Friday, and may continue into early next week. And 
that gets ME to my next item: models have, for some time, been 
advertising a system that will affect US in mid-February, but true 
to form for our region, can't make up their mind on how much cold 
air will be here and what form most of the pcpn will take. 
Something to watch and stay tuned for as we move thru the upcoming 
week. 


Tes 


&& 


Aviation: (for the 18z tafs through 18z Monday afternoon) 
issued at 1130 am CST sun Feb 7 2016 


Specifics for kcou, kuin: VFR for the first 0-6 hours and possibly 
longer. MVFR stratus is expected to reach the terminals after 03z. 
Snow showers will develop overnight and persist through the end of 
the taf period. Transient IFR vsbys are possible at times when the 
heavier snow showers move directly over the terminals, but it is 
not possible to pin down a more exact window this far in advance. 


Specifics for kstl, ksus, kcps: VFR for the first 0-6 hours and 
probably for the first 0-12 hours. A cold front was moving 
through the St. Louis Metro area at taf issuance. Winds were 
gradually turning westerly behind the front and wind gusts had 
increased to around 25 kts. MVFR stratus is not expected to reach 
the St. Louis Metro terminals until after 06z. Snow showers will 
likely develop early tomorrow morning and persist through the 
afternoon. Transient IFR vsbys are possible at times when the 
heavier snow showers move directly over the terminals, but it is 
not possible to pin down a more exact window this far in advance. 


Kanofsky 


&& 


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


$$ 


Weather forecast office lsx 






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