Collinsville, Illinois Weather Conditions

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Current Conditions

  • 34°
  • Overcast
  • Wind: ENE 6 mph
  • Humidity: 73%
  • Visibility: 10.0 miles
  • Dew Point: 26°
  • Pressure: 30.29 in. -
  • Heat Index: 29

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Next 12 Hours

9  pm
12  am
3  am
6  am
9  am
Overcast
Overcast
Overcast
Overcast
Fog
Fog
Fog
Fog
Mostly Cloudy
Mostly Cloudy
32°
32°
30°
34°
32°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Mostly Cloudy
  • High: 39 °
  • Low: 28 °
  • Mostly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 41 °
  • Low: 30 °
  • Partly Cloudy
  • Sunday
  • Mostly Cloudy
  • High: 43 °
  • Low: 32 °
  • Mostly Cloudy
  • Monday
  • Chance of Rain
  • High: 46 °
  • Low: 39 °
  • Chance of Rain
  • Tuesday
  • Chance of Rain
  • High: 43 °
  • Low: 32 °
  • Chance of Rain

Forecast for Collinsville, Illinois

Updated: 9:00 PM CST on December 18, 2014

  • Thursday

    Overcast with snow, then a chance of snow in the afternoon. High of 36F. Winds less than 5 mph. Chance of snow 70%.

  • Thursday Night

    Overcast in the evening, then mostly cloudy. Fog overnight. Low of 30F. Winds less than 5 mph.

  • Friday

    Mostly cloudy. Fog early. High of 39F. Winds less than 5 mph.

  • Friday Night

    Mostly cloudy. Low of 28F. Winds less than 5 mph.

  • Saturday

    Partly cloudy. High of 41F. Winds less than 5 mph.

  • Saturday Night

    Partly cloudy. Low of 30F. Winds less than 5 mph.

  • Sunday

    Overcast in the morning, then partly cloudy. High of 43F. Winds from the SSE at 5 to 10 mph.

  • Sunday Night

    Mostly cloudy. Fog overnight. Low of 32F. Winds from the South at 10 to 15 mph.

  • Monday

    Overcast with a chance of rain. Fog early. High of 46F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 40%.

  • Monday Night

    Overcast with a chance of rain after midnight. Fog overnight. Low of 39F. Winds from the SW at 5 to 15 mph. Chance of rain 40%.

  • Tuesday

    Overcast with a chance of rain. High of 43F. Breezy. Winds from the WNW at 10 to 20 mph. Chance of rain 30%.

  • Tuesday Night

    Overcast. Low of 32F with a windchill as low as 23F. Winds from the WNW at 10 to 15 mph.

  • Wednesday

    Partly cloudy. High of 39F with a windchill as low as 23F. Breezy. Winds from the West at 15 to 20 mph.

  • Wednesday Night

    Partly cloudy. Low of 30F with a windchill as low as 21F. Winds from the WSW at 10 to 15 mph.

  • Thursday

    Mostly cloudy. High of 39F. Winds from the WNW at 5 to 15 mph shifting to the North in the afternoon.

  • Thursday Night

    Overcast with a chance of snow. Low of 28F with a windchill as low as 18F. Winds from the NNE at 10 to 15 mph. Chance of snow 40% with accumulations up to 3 in. possible.

  • Friday

    Partly cloudy. High of 36F with a windchill as low as 18F. Breezy. Winds from the WNW at 10 to 20 mph.

  • Friday Night

    Partly cloudy. Low of 25F with a windchill as low as 19F. Winds from the WNW at 5 to 10 mph.

  • Saturday

    Clear. High of 34F with a windchill as low as 18F. Winds from the WNW at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Fog overnight. Low of 21F. Winds from the NW at 5 to 10 mph.

  • Sunday

    Clear. High of 32F. Winds from the WNW at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 21F. Winds less than 5 mph.

  • Monday

    Clear. High of 28F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 21F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Collinsville West, Collinsville, IL

Updated: 9:52 PM CST

Temperature: 31.9 °F Dew Point: 27 °F Humidity: 81% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Tim and Carolyns yard, COLLINSVILLE, IL

Updated: 9:53 PM CST

Temperature: 33.8 °F Dew Point: 27 °F Humidity: 77% Wind: Calm Pressure: 29.78 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Rolling Meadows Dr, Maryville, IL

Updated: 9:53 PM CST

Temperature: 32.7 °F Dew Point: 24 °F Humidity: 70% Wind: Calm Pressure: 29.62 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: Barbarotto Compound, Maryville, IL

Updated: 9:53 PM CST

Temperature: 31.8 °F Dew Point: 28 °F Humidity: 87% Wind: NE at 3.0 mph Pressure: 30.23 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Liberty Place, Troy, IL

Updated: 9:50 PM CST

Temperature: 31.6 °F Dew Point: 28 °F Humidity: 86% Wind: Calm Pressure: 29.64 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Nolan Creek Subdivision, OFallon, IL

Updated: 9:45 PM CST

Temperature: 32.7 °F Dew Point: 28 °F Humidity: 81% Wind: ENE at 1.0 mph Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: Birmingham Drive, Glen Carbon, IL

Updated: 9:50 PM CST

Temperature: 32.0 °F Dew Point: 26 °F Humidity: 79% Wind: North at - Pressure: 30.33 in Hourly Precipitation: - Windchill: 32 °F Graphs

Location: Don's Backyard, O'Fallon, IL

Updated: 9:53 PM CST

Temperature: 32.2 °F Dew Point: 26 °F Humidity: 76% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: New Goose, Fairview Heights, IL

Updated: 9:53 PM CST

Temperature: 34.5 °F Dew Point: 30 °F Humidity: 84% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: Old Skewl, Fairview Heights, IL

Updated: 9:53 PM CST

Temperature: 34.3 °F Dew Point: 24 °F Humidity: 67% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: StormGrl2001, Fairview Heights, IL

Updated: 9:47 PM CST

Temperature: 32.2 °F Dew Point: 26 °F Humidity: 79% Wind: NNE at 2.2 mph Pressure: 30.23 in Hourly Precipitation: - Windchill: 32 °F Graphs

Location: Chateau Estates, Fairview Heights, IL

Updated: 9:53 PM CST

Temperature: 33.0 °F Dew Point: 28 °F Humidity: 81% Wind: NE at 1.0 mph Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: Prairie Crossing, OFallon, IL

Updated: 9:40 PM CST

Temperature: 32.0 °F Dew Point: 27 °F Humidity: 82% Wind: Calm Pressure: 30.08 in Hourly Precipitation: - Windchill: 32 °F Graphs

Location: Mallard Pointe, Troy, IL

Updated: 9:53 PM CST

Temperature: 32.4 °F Dew Point: 25 °F Humidity: 74% Wind: NW at 1.6 mph Pressure: 29.65 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: EAST GRANITE, Granite City, IL

Updated: 9:47 PM CST

Temperature: 32.9 °F Dew Point: 28 °F Humidity: 81% Wind: Calm Pressure: 30.27 in Hourly Precipitation: - Windchill: 33 °F Graphs

Location: Kelly Greens Weather Station, Edwardsville, IL

Updated: 9:53 PM CST

Temperature: 30.6 °F Dew Point: 28 °F Humidity: 89% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Dunlap Lake, Edwardsville, IL

Updated: 9:51 PM CST

Temperature: 30.8 °F Dew Point: 27 °F Humidity: 87% Wind: Calm Pressure: 30.31 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Grand Ave, Edwardsville, IL

Updated: 9:52 PM CST

Temperature: 30.7 °F Dew Point: 28 °F Humidity: 88% Wind: Calm Pressure: 30.40 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Nickel Plate Trail, Edwardsville, IL

Updated: 9:50 PM CST

Temperature: 31.6 °F Dew Point: 28 °F Humidity: 85% Wind: Calm Pressure: 30.30 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Greg and Linsay's House, Swansea, IL

Updated: 9:53 PM CST

Temperature: 32.7 °F Dew Point: 25 °F Humidity: 73% Wind: Calm Pressure: 30.32 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: North Horner Park, Lebanon, IL

Updated: 9:53 PM CST

Temperature: 32.0 °F Dew Point: 23 °F Humidity: 68% Wind: Calm Pressure: 33.49 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Lake Christine, Belleville, IL

Updated: 9:50 PM CST

Temperature: 32.4 °F Dew Point: 27 °F Humidity: 79% Wind: Calm Pressure: 30.11 in Hourly Precipitation: - Windchill: 32 °F Graphs

Location: West End, Belleville, IL

Updated: 9:53 PM CST

Temperature: 34.3 °F Dew Point: 15 °F Humidity: 62% Wind: Calm Pressure: 31.51 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: APRSWXNET Shiloh IL US, Belleville, IL

Updated: 9:03 PM CST

Temperature: 32 °F Dew Point: 27 °F Humidity: 82% Wind: East at 1 mph Pressure: 30.25 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Branch Street, St. Louis, MO

Updated: 9:50 PM CST

Temperature: 34.0 °F Dew Point: - Humidity: 73% Wind: North at - Pressure: 29.80 in Hourly Precipitation: - Windchill: 34 °F Graphs

Location: BLAIR STREET, St. Louis, MO

Updated: 9:50 PM CST

Temperature: 34.5 °F Dew Point: - Humidity: 77% Wind: North at - Pressure: 29.76 in Hourly Precipitation: - Windchill: 34 °F Graphs

Location: St. Jacob, Il, St. Jacob, IL

Updated: 9:53 PM CST

Temperature: 31.8 °F Dew Point: 26 °F Humidity: 77% Wind: Calm Pressure: 30.37 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Belleville, IL, Belleville, IL

Updated: 9:53 PM CST

Temperature: 33.4 °F Dew Point: 17 °F Humidity: 51% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: 33 °F Graphs

Location: Rosewood Heights, East Alton, IL

Updated: 9:53 PM CST

Temperature: 31.0 °F Dew Point: 25 °F Humidity: 79% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Millstadt, Millstadt, IL

Updated: 9:53 PM CST

Temperature: 32.2 °F Dew Point: 26 °F Humidity: 78% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 32 °F Graphs

Location: Bethalto, IL

Updated: 9:53 PM CST

Temperature: 31.3 °F Dew Point: -19 °F Humidity: 10% Wind: NW at 1.6 mph Pressure: 35.43 in Hourly Precipitation: 0.00 in Windchill: 31 °F Graphs

Location: Hunters Creek, Mascoutah, IL

Updated: 9:53 PM CST

Temperature: 33.1 °F Dew Point: 28 °F Humidity: 82% Wind: Calm Pressure: 30.28 in Hourly Precipitation: 0.00 in Windchill: 33 °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 
617 PM CST Thu Dec 18 2014 


Short term: (through late tonight) 
issued at 206 PM CST Thu Dec 18 2014 


Any lingering flurries or drizzle will taper off late this 
afternoon. Increased low-level moisture from today's snowfall 
along with light winds overnight will create favorable conditions 
for fog formation. Later shifts will need to monitor the potential 
for dense fog. 


Kanofsky 


Long term: (friday through next thursday) 
issued at 206 PM CST Thu Dec 18 2014 


An upper trough and its associated surface low will move across 
the central and southern Continental U.S. Tomorrow and tomorrow night. Light 
rain/snow is possible across southern/southeastern MO into 
southern IL, but the bulk of the precipitation will occur south of 
the lsx County Warning Area. A separate vort Max drops down from Canada into the 
back side of the upper trough before it swings through southern Iowa 
on Fri night/Sat. This feature could provide upper support for 
sprinkles/flurries across northern MO and west central Illinois if 
sufficient moisture becomes available. 


A clipper-like system is forecast to develop over the northern 
plains/western Great Lakes on Sunday night into Monday, then close 
off over the northeastern quadrant of the Continental U.S. During the middle 
of the week. The GFS and European model (ecmwf) exhibit differences regarding 
timing (ecmwf is slower), vort intensity (gfs is more intense), 
and the result of interactions with other disturbances. If this 
low pressure system develops as currently advertised, then it 
would be expected to produce widespread rain/snow between Monday 
and Wednesday with clouds and flurries lingering into the middle 
of the week within a cyclonic flow regime aloft. 


Temperatures will be seasonably cool on Friday and Saturday, then 
warm to around 5-7 degrees above average on Sunday and Monday 
ahead of the clipper-like system. Expect cooler temperatures for 
the middle of next week within the colder air behind the clipper 
system. 


Kanofsky 


&& 


Aviation: (for the 00z tafs through 00z Friday evening) 
issued at 614 PM CST Thu Dec 18 2014 


Expect mainly MVFR and IFR conditions through the period as there 
is abundant low level moisture in the atmosphere and light winds. 
Expect IFR conditions the next 24 hours at kcou. The St. Louis 
Metro taf sites are on the edge of a large area of IFR ceilings. 
Expect current MVFR ceilings at kstl and kcps to slowly decrease 
this evening to IFR after 06z...and become LIFR between 10-17z. 
KUIN will see MVFR conditions most of the night...becoming LIFR 
late tonight into late Friday morning. All locations should see an 
improvement in ceilings and visibilities by late afternoon Friday. 


Specifics for kstl: expect current ceilings to fall below 2000 ft 
in the next hour or two with the onset of evening. Then ceilings 
and visibilities will likely slowly decrease through the night 
given the high atmospheric moisture and light winds. LIFR conditions 
are still expected between 10-17z. Do expect some slow improvement 
in ceilings and visibilities during the afternoon hours...though 
do not think they will rise above 2000ft at this time. 


Britt 


&& 


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


$$ 


Weather forecast office lsx 



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