Collinsville, Illinois Weather Conditions

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Current Conditions

  • 59°
  • Clear
  • Wind: SSE 8 mph
  • Humidity: 46%
  • Visibility: 10.0 miles
  • Dew Point: 38°
  • Pressure: 29.99 in. +

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Next 12 Hours

9  pm
12  am
3  am
6  am
9  am
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Clear
Clear
Clear
Clear
59°
52°
50°
49°
55°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Clear
  • High: 72 °
  • Low: 46 °
  • Clear
  • Wednesday
  • Clear
  • High: 75 °
  • Low: 60 °
  • Clear
  • Thursday
  • Chance of a Thunderstorm
  • High: 73 °
  • Low: 54 °
  • Chance of T-Storms
  • Friday
  • Rain
  • High: 54 °
  • Low: 35 °
  • Rain
  • Saturday
  • Clear
  • High: 64 °
  • Low: 42 °
  • Clear

Forecast for Collinsville, Illinois

Updated: 7:14 PM CDT on January 30, 2015

  • Monday

    Partly cloudy. Lows overnight in the upper 40s.

  • Monday Night

    A few clouds. Low 48F. Winds SW at 5 to 10 mph.

  • Tuesday

    Mainly sunny. High 72F. Winds NW at 10 to 15 mph.

  • Tuesday Night

    Clear. Low 46F. Winds ESE at 5 to 10 mph.

  • Wednesday

    Sunny. High near 75F. Winds SSE at 10 to 20 mph.

  • Wednesday Night

    Partial cloudiness early, with scattered showers and thunderstorms later during the night. Low near 60F. Winds SSE at 10 to 15 mph. Chance of rain 40%.

  • Thursday

    Variable clouds with scattered thunderstorms. Potential for severe thunderstorms. High 73F. Winds SSW at 10 to 20 mph. Chance of rain 60%.

  • Thursday Night

    Periods of rain. Low 54F. Winds NNW at 10 to 15 mph. Chance of rain 80%. Rainfall near a half an inch.

  • Friday

    Rain ending early. Remaining cloudy. High 54F. Winds NNW at 15 to 25 mph. Chance of rain 70%. Rainfall near a quarter of an inch.

  • Friday Night

    Mainly clear. Low near 35F. Winds NW at 10 to 20 mph.

  • Saturday

    Sunny skies. High 64F. Winds WSW at 5 to 10 mph.

  • Saturday Night

    A mostly clear sky. Low 42F. Winds SSW at 5 to 10 mph.

  • Sunday

    A few clouds early, otherwise mostly sunny. High 66F. Winds S at 10 to 15 mph.

  • Sunday Night

    Partly cloudy skies during the evening will give way to cloudy skies overnight. Low 49F. Winds SSE at 10 to 15 mph.

  • Monday

    Some clouds and possibly an isolated thunderstorm in the afternoon. High 71F. Winds S at 10 to 20 mph. Chance of rain 30%.

  • Monday Night

    Scattered showers and thunderstorms. Low 56F. Winds SSW at 10 to 20 mph. Chance of rain 50%.

  • Tuesday

    Scattered thunderstorms in the morning, then mainly cloudy late. High 73F. Winds SSW at 5 to 10 mph. Chance of rain 50%.

  • Tuesday Night

    Thunderstorms during the evening, then partly cloudy overnight. Low 52F. Winds SSW at 5 to 10 mph. Chance of rain 80%.

  • Wednesday

    Scattered showers and thunderstorms. High 72F. Winds SSE at 5 to 10 mph. Chance of rain 60%.

  • Wednesday Night

    Scattered thunderstorms during the evening followed by occasional showers overnight. Low 54F. Winds E at 5 to 10 mph. Chance of rain 60%.

  • Thursday

    Intervals of clouds and sunshine. High 66F. Winds NNE at 5 to 10 mph.

  • Thursday Night

    Partly cloudy. Low 46F. Winds ENE at 5 to 10 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Collinsville Illinois, Collinsville, IL

Updated: 9:00 PM CDT

Temperature: 61.5 °F Dew Point: 36 °F Humidity: 39% Wind: South at 2.7 mph Pressure: 30.02 in Hourly Precipitation: 0.00 in Graphs

Location: Collinsville West, Collinsville, IL

Updated: 9:00 PM CDT

Temperature: 60.4 °F Dew Point: 37 °F Humidity: 42% Wind: South at 7.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Graphs

Location: Tim and Carolyns yard, COLLINSVILLE, IL

Updated: 9:00 PM CDT

Temperature: 59.4 °F Dew Point: 38 °F Humidity: 45% Wind: South at 4.0 mph Pressure: 29.57 in Hourly Precipitation: 0.00 in Graphs

Location: Stonebridge, Maryville, IL

Updated: 9:00 PM CDT

Temperature: 60.3 °F Dew Point: 36 °F Humidity: 41% Wind: SSE at 10.1 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Graphs

Location: Rolling Meadows Dr, Maryville, IL

Updated: 9:00 PM CDT

Temperature: 59.9 °F Dew Point: 31 °F Humidity: 33% Wind: SSE at 1.6 mph Pressure: 29.35 in Hourly Precipitation: 0.00 in Graphs

Location: Barbarotto Compound, Maryville, IL

Updated: 9:00 PM CDT

Temperature: 58.6 °F Dew Point: 38 °F Humidity: 46% Wind: SSW at 4.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Graphs

Location: Liberty Place, Troy, IL

Updated: 8:45 PM CDT

Temperature: 59.7 °F Dew Point: 37 °F Humidity: 43% Wind: SE at 5.0 mph Pressure: 29.35 in Hourly Precipitation: 0.00 in Graphs

Location: Nolan Creek Subdivision, OFallon, IL

Updated: 8:45 PM CDT

Temperature: 59.8 °F Dew Point: 38 °F Humidity: 44% Wind: South at 7.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Graphs

Location: Fairwood Hills, OFallon, IL

Updated: 9:00 PM CDT

Temperature: 60.1 °F Dew Point: 39 °F Humidity: 45% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Graphs

Location: Birmingham Drive, Glen Carbon, IL

Updated: 8:55 PM CDT

Temperature: 60.3 °F Dew Point: 35 °F Humidity: 39% Wind: North at - Pressure: 30.03 in Hourly Precipitation: - Graphs

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

Updated: 8:59 PM CDT

Temperature: 58.8 °F Dew Point: 37 °F Humidity: 44% Wind: SW at 3.8 mph Pressure: 29.98 in Hourly Precipitation: - Graphs

Location: New Goose, Fairview Heights, IL

Updated: 9:00 PM CDT

Temperature: 60.1 °F Dew Point: 39 °F Humidity: 45% Wind: South at 3.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Graphs

Location: StormGrl2001, Fairview Heights, IL

Updated: 8:57 PM CDT

Temperature: 57.6 °F Dew Point: 40 °F Humidity: 52% Wind: SE at 2.7 mph Pressure: 29.77 in Hourly Precipitation: - Graphs

Location: Chalet Court, Fairview Heights, IL

Updated: 9:00 PM CDT

Temperature: 59.2 °F Dew Point: 39 °F Humidity: 46% Wind: North at - Pressure: 30.08 in Hourly Precipitation: - Graphs

Location: Chateau Estates, Fairview Heights, IL

Updated: 9:00 PM CDT

Temperature: 58.4 °F Dew Point: 38 °F Humidity: 47% Wind: SSW at 4.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Graphs

Location: Prairie Crossing, OFallon, IL

Updated: 8:52 PM CDT

Temperature: 58.3 °F Dew Point: 40 °F Humidity: 51% Wind: West at 3.2 mph Pressure: 29.78 in Hourly Precipitation: - Graphs

Location: Prairie Manor, Edwardsville, IL

Updated: 9:00 PM CDT

Temperature: 59.2 °F Dew Point: 38 °F Humidity: 45% Wind: South at 10.7 mph Pressure: 29.81 in Hourly Precipitation: 0.00 in Graphs

Location: EAST GRANITE, Granite City, IL

Updated: 8:52 PM CDT

Temperature: 61.9 °F Dew Point: 42 °F Humidity: 48% Wind: SSW at 5.8 mph Pressure: 29.94 in Hourly Precipitation: - Graphs

Location: MesoWest , Granite City, IL

Updated: 7:20 PM CDT

Temperature: 68 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Graphs

Location: Dunlap Lake, Edwardsville, IL

Updated: 8:53 PM CDT

Temperature: 58.5 °F Dew Point: 38 °F Humidity: 47% Wind: SSW at 1.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Graphs

Location: Grand Ave, Edwardsville, IL

Updated: 9:00 PM CDT

Temperature: 59.7 °F Dew Point: 36 °F Humidity: 41% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Graphs

Location: Nickel Plate Trail, Edwardsville, IL

Updated: 9:00 PM CDT

Temperature: 60.0 °F Dew Point: 38 °F Humidity: 44% Wind: South at 3.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Graphs

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

Updated: 9:00 PM CDT

Temperature: 59.0 °F Dew Point: 39 °F Humidity: 48% Wind: South at 3.6 mph Pressure: 30.06 in Hourly Precipitation: 0.00 in Graphs

Location: North Horner Park, Lebanon, IL

Updated: 9:00 PM CDT

Temperature: 59.0 °F Dew Point: 47 °F Humidity: 64% Wind: South at 6.0 mph Pressure: 30.12 in Hourly Precipitation: 0.00 in Graphs

Location: Village of Shiloh, OFallon, IL

Updated: 9:00 PM CDT

Temperature: 57.5 °F Dew Point: 37 °F Humidity: 46% Wind: SSE at 3.0 mph Pressure: 30.07 in Hourly Precipitation: 0.00 in Graphs

Location: Lake Christine, Belleville, IL

Updated: 8:52 PM CDT

Temperature: 54.0 °F Dew Point: 39 °F Humidity: 57% Wind: NNE at 1.7 mph Pressure: 29.80 in Hourly Precipitation: - Graphs

Location: West End, Belleville, IL

Updated: 9:00 PM CDT

Temperature: 59.2 °F Dew Point: 17 °F Humidity: 37% Wind: SSE at 8.0 mph Pressure: 30.01 in Hourly Precipitation: 0.00 in Graphs

Location: APRSWXNET , Belleville, IL

Updated: 8:30 PM CDT

Temperature: 60 °F Dew Point: 39 °F Humidity: 45% Wind: SE at 5 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Graphs

Location: Branch Street, St. Louis, MO

Updated: 8:50 PM CDT

Temperature: 67.6 °F Dew Point: - Humidity: 25% Wind: North at - Pressure: 29.53 in Hourly Precipitation: - Graphs

Location: WxGuy12 - West Belleville, Belleville, IL

Updated: 9:00 PM CDT

Temperature: 57.7 °F Dew Point: 40 °F Humidity: 52% Wind: South at 1.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Graphs

Location: BLAIR STREET, St. Louis, MO

Updated: 8:50 PM CDT

Temperature: 67.3 °F Dew Point: - Humidity: 30% Wind: North at - Pressure: 29.46 in Hourly Precipitation: - Graphs

Location: Belleville, IL, Belleville, IL

Updated: 9:00 PM CDT

Temperature: 57.7 °F Dew Point: 19 °F Humidity: 22% Wind: ENE at 1.3 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in 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 
623 PM CDT Mon Mar 30 2015 


Short term: (through late tonight) 
issued at 350 PM CDT Mon Mar 30 2015 


South to southwest flow will prevail tonight ahead of a weak cold 
front which will move through Tuesday. Dry atmosphere will provide 
a mostly clear sky...with perhaps a few cirrus clouds. Temperatures 
look to stay near or just above climatological normals due to the 
warm southwest winds. Used a blend of guidance for lows, but leaned 
toward some of the warmer members of the ensemble. 


Carney 


Long term: (tuesday through next monday) 
issued at 350 PM CDT Mon Mar 30 2015 


The forecast over this period can be broken down into three 
segments, all primarily based off the upper flow pattern. 


Through Tuesday night, a northwest flow will prevail over our 
region, delivering quiet wx, thanks to dry air and little in the way 
of any forcing mechanisms. A weak cold front will move thru during 
the day on Tuesday, but both the associated warm air advection ahead of it, and its 
expected position when it might be able to gain some leverage from 
the heating of the day for some surface based convection are not 
favorable for any mention of pcpn at this time. Have continued the 
dry forecast from the previous package. 


The air following the cold front will not be much different than the 
one ahead of it, and so despite northwest winds for much of Tuesday for 
most areas, temps are expected to follow persistence or a bit above. 


The upper flow will then back to the west-SW by late Wednesday and 
continue into Friday night, signalling a more active wx pattern to 
close the work week. The old front from Tuesday will be buckling 
northward as a warm front on Wednesday, but the timing looks to be a 
bit slower than it did 24hrs ago. Given the significant increase of 
moisture thru the column that will accompany this warm front, its 
delay will still mean Worth a small pop mention for the afternoon 
and evening but over a more western area than 24hrs ago. 


More significant forcing will move in late Wednesday night and 
continue into Thursday evening as a stronger cold front than the one 
on Tuesday drops down and will result in periods of showers and 
thunderstorms. Another shot of forcing, mostly frontogenetical and 
Post-frontal, will then move in on Friday providing mostly rain with 
any thunder confined to southern MO and Illinois. 


A warm day is expected for Wednesday, and potentially into Thursday 
depending on the exact timing of the rain and front, with much 
cooler temps than expected on Friday behind the front with rain. 


A period of quieter wx is then expected for the weekend with northwest flow 
restored by Saturday morning and drier air moving in. Temps will be 
quick to rebound, after a cool Saturday, towards normal on Sunday as 
surface winds turn from the south. 


Southwest upper flow could occur already by Monday next week with 
the normal accompanying rain chances, but some model disagreement on 
timing here so went conservative with pops and leaned towards climo 
values. 


Tes 


&& 


Aviation: (for the 00z tafs through 00z Tuesday evening) 
issued at 548 PM CDT Mon Mar 30 2015 


VFR conditions expected through this taf forecast period. 
Scattered cirrus overnight into Tuesday. Southwest winds will 
gradually veer overnight ahead of a weak cold front which will 
move through KUIN around 10z and into the kstl Metro taf sites 
around 14z. Will add low level wind shear this evening until frontal passage as 
most model output shows winds increase to near 40 knots at around 
1000 feet above ground level. 


Specifics for kstl: VFR conditions expected. Surface winds will 
veer slowly overnight ahead of an approaching front. Will add low level wind shear 
this evening until frontal passage as most model output shows 
winds increase to near 40 knots at around 1000 feet above ground level. As the 
front passes around 14z, winds will become northwest but remain 
relatively light. 


Browning 


&& 


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


$$ 


Weather forecast office lsx 



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