Collinsville, Illinois Weather Conditions

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Current Conditions

  • 40°
  • Partly Cloudy
  • Wind: NW 8 mph
  • Humidity: 70%
  • Visibility: 10.0 miles
  • Dew Point: 31°
  • Pressure: 29.91 in. 0
  • Heat Index: 34

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Next 12 Hours

11  pm
2  am
5  am
8  am
11  am
Partly Cloudy
Partly Cloudy
Snow
Snow
Snow Showers
Snow Showers
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
41°
35°
33°
29°
31°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Partly Cloudy
  • High: 31 °
  • Low: 17 °
  • Partly Cloudy
  • Tuesday
  • Partly Cloudy
  • High: 26 °
  • Low: 14 °
  • Partly Cloudy
  • Wednesday
  • Partly Cloudy
  • High: 26 °
  • Low: 15 °
  • Partly Cloudy
  • Thursday
  • Partly Cloudy
  • High: 33 °
  • Low: 21 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 40 °
  • Low: 23 °
  • Partly Cloudy

Forecast for Collinsville, Illinois

Updated: 7:01 PM CST on January 07, 2016

  • Sunday

    Chance of snow showers overnight. Lows overnight in the low 30s.

  • Sunday Night

    Partly cloudy skies this evening will give way to occasional snow showers overnight. Low around 30F. Winds WNW at 15 to 25 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. Gusty winds early. A few flurries or snow showers possible. Low 17F. Winds NW at 20 to 30 mph.

  • Tuesday

    Cloudy early with partial sunshine expected late. High 26F. Winds NW at 15 to 25 mph.

  • Tuesday Night

    Partly cloudy. Low 14F. Winds NW at 10 to 20 mph.

  • Wednesday

    Partly cloudy. High 26F. Winds NW at 10 to 20 mph.

  • Wednesday Night

    Partly cloudy skies. A few flurries or snow showers possible. Low around 15F. Winds N at 5 to 10 mph.

  • Thursday

    Partly cloudy skies. High 33F. Winds NE at 5 to 10 mph.

  • Thursday Night

    A few clouds. Low 21F. Winds light and variable.

  • Friday

    Partly cloudy. High near 40F. Winds ENE at 5 to 10 mph.

  • Friday Night

    Some clouds early will give way to generally clear conditions overnight. Low 23F. Winds N at 5 to 10 mph.

  • Saturday

    Mainly sunny. High 31F. Winds N at 10 to 15 mph.

  • Saturday Night

    Mostly clear. Low 19F. Winds ENE at 5 to 10 mph.

  • Sunday

    Partly cloudy in the morning followed by periods of snow showers later in the day. High around 35F. Winds SE at 10 to 20 mph. Chance of snow 50%. 1 to 3 inches of snow expected.

  • Sunday Night

    Variable clouds with snow showers. Low 27F. Winds SSE at 5 to 10 mph. Chance of snow 50%. Snowfall around one inch.

  • Monday

    Cloudy early with partial sunshine expected late. High near 40F. Winds WSW at 10 to 15 mph.

  • Monday Night

    Mostly clear skies. Low 29F. Winds W at 5 to 10 mph.

  • Tuesday

    Mostly sunny skies. High 46F. Winds W at 5 to 10 mph.

  • Tuesday Night

    Mostly clear skies. Low 31F. Winds light and variable.

  • Wednesday

    A shower or two around the area in the morning, then partly cloudy in the afternoon. High 48F. Winds WNW at 5 to 10 mph. Chance of rain 30%.

  • Wednesday Night

    Partly cloudy in the evening then becoming cloudy with a mix of light rain and snow after midnight. Low 31F. Winds light and variable. Chance of precip 30%.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Aussie Abode, Collinsville, IL

Updated: 9:26 PM CST

Temperature: 37.6 °F Dew Point: 30 °F Humidity: 74% Wind: Calm Pressure: 29.74 in Hourly Precipitation: - Windchill: 38 °F Graphs

Location: Collinsville Illinois, Collinsville, IL

Updated: 9:41 PM CST

Temperature: 38.7 °F Dew Point: 32 °F Humidity: 75% Wind: Calm Pressure: 29.66 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Knightsbridge Subdivision, Collinsville, IL

Updated: 9:38 PM CST

Temperature: 37.0 °F Dew Point: 29 °F Humidity: 72% Wind: Calm Pressure: 29.70 in Hourly Precipitation: - Windchill: 37 °F Graphs

Location: Tim and Carolyns yard, COLLINSVILLE, IL

Updated: 9:41 PM CST

Temperature: 40.3 °F Dew Point: 32 °F Humidity: 72% Wind: Calm Pressure: 29.66 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Stonebridge Farms, Maryville, IL

Updated: 9:41 PM CST

Temperature: 38.8 °F Dew Point: 31 °F Humidity: 74% Wind: West at 2.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Rolling Meadows Dr, Maryville, IL

Updated: 9:41 PM CST

Temperature: 37.4 °F Dew Point: 24 °F Humidity: 57% Wind: Calm Pressure: 29.20 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Barbarotto Compound, Maryville, IL

Updated: 9:41 PM CST

Temperature: 37.9 °F Dew Point: 31 °F Humidity: 75% Wind: Calm Pressure: 29.79 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Dave's Yard, Caseyville, IL

Updated: 9:40 PM CST

Temperature: 40.5 °F Dew Point: 32 °F Humidity: 71% Wind: Calm Pressure: 29.48 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Meadowbrooke, Troy, IL

Updated: 9:39 PM CST

Temperature: 39.5 °F Dew Point: 33 °F Humidity: 76% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Nolan Creek Subdivision, OFallon, IL

Updated: 9:29 PM CST

Temperature: 40.6 °F Dew Point: 33 °F Humidity: 74% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Fairwood Hills, OFallon, IL

Updated: 9:41 PM CST

Temperature: 39.7 °F Dew Point: 34 °F Humidity: 80% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Birmingham Drive, Glen Carbon, IL

Updated: 9:40 PM CST

Temperature: 41.7 °F Dew Point: 28 °F Humidity: 57% Wind: North at - Pressure: 29.93 in Hourly Precipitation: - Windchill: 42 °F Graphs

Location: Deer Creek Subdivision, O'Fallon, IL

Updated: 9:39 PM CST

Temperature: 36.9 °F Dew Point: 29 °F Humidity: 74% Wind: Calm Pressure: 29.86 in Hourly Precipitation: - Windchill: 37 °F Graphs

Location: New Goose, Fairview Heights, IL

Updated: 9:41 PM CST

Temperature: 40.6 °F Dew Point: 33 °F Humidity: 74% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Quail Meadows, O'Fallon, IL

Updated: 9:41 PM CST

Temperature: 39.2 °F Dew Point: 33 °F Humidity: 78% Wind: West at 1.1 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: PRAIRIE LAWN, OFallon, IL

Updated: 9:31 PM CST

Temperature: 38.5 °F Dew Point: 32 °F Humidity: 76% Wind: Calm Pressure: 29.87 in Hourly Precipitation: - Windchill: 38 °F Graphs

Location: Stonebriar, Troy, IL

Updated: 9:37 PM CST

Temperature: 37.4 °F Dew Point: 30 °F Humidity: 74% Wind: Calm Pressure: 29.70 in Hourly Precipitation: - Windchill: 37 °F Graphs

Location: Chalet Court, Fairview Heights, IL

Updated: 9:40 PM CST

Temperature: 40.1 °F Dew Point: 27 °F Humidity: 60% Wind: North at - Pressure: 29.96 in Hourly Precipitation: - Windchill: 40 °F Graphs

Location: Chateau Estates, Fairview Heights, IL

Updated: 9:41 PM CST

Temperature: 39.3 °F Dew Point: 32 °F Humidity: 76% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Duke St, Edwardsville, IL

Updated: 9:41 PM CST

Temperature: 40.3 °F Dew Point: 33 °F Humidity: 74% Wind: Calm Pressure: 30.10 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: EAST GRANITE, Granite City, IL

Updated: 9:31 PM CST

Temperature: 37.8 °F Dew Point: 32 °F Humidity: 81% Wind: Calm Pressure: 29.84 in Hourly Precipitation: - Windchill: 38 °F Graphs

Location: 27th Street, Granite City, IL

Updated: 9:41 PM CST

Temperature: 47.1 °F Dew Point: 34 °F Humidity: 59% Wind: North at - Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: 47 °F Graphs

Location: Dunlap Lake, Edwardsville, IL

Updated: 9:39 PM CST

Temperature: 38.2 °F Dew Point: 32 °F Humidity: 78% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Grand Ave, Edwardsville, IL

Updated: 9:40 PM CST

Temperature: 37.6 °F Dew Point: 32 °F Humidity: 79% Wind: Calm Pressure: 29.57 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: StormGrl2001, OFallon, IL

Updated: 9:33 PM CST

Temperature: 39.0 °F Dew Point: 34 °F Humidity: 81% Wind: Calm Pressure: 29.74 in Hourly Precipitation: - Windchill: 39 °F Graphs

Location: Nickel Plate Trail, Edwardsville, IL

Updated: 9:40 PM CST

Temperature: 38.2 °F Dew Point: 32 °F Humidity: 77% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: North Horner Park, Lebanon, IL

Updated: 9:40 PM CST

Temperature: 41.0 °F Dew Point: 29 °F Humidity: 61% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Village of Shiloh, OFallon, IL

Updated: 9:40 PM CST

Temperature: 36.9 °F Dew Point: 28 °F Humidity: 70% Wind: SSW at 1.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Powder Mill, Belleville, IL

Updated: 9:40 PM CST

Temperature: 40.3 °F Dew Point: 34 °F Humidity: 79% Wind: Calm Pressure: 29.64 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Lake Christine, Belleville, IL

Updated: 9:32 PM CST

Temperature: 39.6 °F Dew Point: 33 °F Humidity: 78% Wind: SW at 1.1 mph Pressure: 29.65 in Hourly Precipitation: - Windchill: 40 °F Graphs

Location: West End, Belleville, IL

Updated: 9:40 PM CST

Temperature: 39.2 °F Dew Point: 10 °F Humidity: 47% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Windchill: 39 °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 
548 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 00z tafs through 00z Monday evening) 
issued at 543 PM CST sun Feb 7 2016 


Very light rain showers or sprinkles possible this evening with 
first upper-level disturbance. Trough will deepen as it heads 
southward overnight tonight and into tomorrow. This will bring 
scattered snow showers as temperatures cool late tonight and 
throughout the day tomorrow. Some of these snow showers will 
likely be briefly intense bringing IFR visibilities/ceilings. 
However...still too early to capture a time period where this is 
most likely at any one terminal. 




Specifics for kstl: 


Slight chance of a sprinkle or very light rain shower this 
evening. Scattered snow showers late tonight and much of tomorrow. 
IFR ceilings/visbys likely in heavier showers...but still too 
earlyt to pin down a block of time for any tempo. 


Gosselin 


&& 


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


$$ 


Weather forecast office lsx 






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