Collinsville, Illinois Weather Conditions

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 41°
  • Clear
  • Wind: SSE 5 mph
  • Humidity: 67%
  • Visibility: 10.0 miles
  • Dew Point: 31°
  • Pressure: 30.17 in. 0
  • Heat Index: 38

Select a Section

Click a section below for more information.

Next 12 Hours

4  am
7  am
10  am
1  pm
4  pm
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Overcast
Overcast
43°
37°
54°
63°
64°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Chance of Rain
  • High: 64 °
  • Low: 45 °
  • Chance of Rain
  • Friday
  • Chance of Rain
  • High: 66 °
  • Low: 45 °
  • Chance of Rain
  • Saturday
  • Partly Cloudy
  • High: 70 °
  • Low: 50 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 70 °
  • Low: 55 °
  • Partly Cloudy
  • Monday
  • Chance of a Thunderstorm
  • High: 72 °
  • Low: 55 °
  • Chance of T-Storms

Forecast for Collinsville, Illinois

Updated: 4:00 AM CDT on April 17, 2014

  • Thursday

    Partly cloudy in the morning, then overcast. High of 64F. Winds from the SSW at 5 to 10 mph. Chance of rain 20%.

  • Thursday Night

    Overcast with a chance of rain. Low of 45F. Winds less than 5 mph. Chance of rain 30%.

  • Friday

    Clear with a chance of rain. High of 66F. Winds from the NNW at 5 to 10 mph. Chance of rain 20%.

  • Friday Night

    Clear. Low of 45F. Winds from the ENE at 5 to 10 mph.

  • Saturday

    Partly cloudy. High of 70F. Winds from the ESE at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 50F. Winds from the SSE at 5 to 10 mph.

  • Sunday

    Partly cloudy. High of 70F. Winds from the South at 5 to 10 mph.

  • Sunday Night

    Overcast. Low of 55F. Winds from the South at 5 to 10 mph.

  • Monday

    Overcast with a chance of rain, then a chance of a thunderstorm and rain in the afternoon. High of 72F. Winds from the SSW at 5 to 10 mph. Chance of rain 50%.

  • Monday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 55F. Winds from the SW at 5 to 10 mph shifting to the NW after midnight. Chance of rain 60% with rainfall amounts near 0.2 in. possible.

  • Tuesday

    Clear. High of 72F. Winds from the North at 5 to 10 mph.

  • Tuesday Night

    Clear. Low of 55F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 75F. Winds from the SE at 5 to 15 mph.

  • Wednesday Night

    Partly cloudy. Low of 55F. Winds from the SSE at 10 to 15 mph.

  • Thursday

    Partly cloudy. High of 79F. Breezy. Winds from the South at 15 to 20 mph.

  • Thursday Night

    Partly cloudy with a chance of a thunderstorm. Low of 63F. Winds from the South at 10 to 15 mph. Chance of rain 20%.

  • Friday

    Partly cloudy. High of 75F. Winds from the SSW at 10 to 15 mph.

  • Friday Night

    Clear. Low of 57F. Winds less than 5 mph.

  • Saturday

    Clear. High of 68F. Winds less than 5 mph.

  • Saturday Night

    Clear. Low of 52F. Winds less than 5 mph.

  • Sunday

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

  • Sunday Night

    Clear. Low of 52F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Collinsville West, Collinsville, IL

Updated: 4:33 AM CDT

Temperature: 43.9 °F Dew Point: 32 °F Humidity: 62% Wind: SE at 2.0 mph Pressure: 30.15 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Rolling Meadows Dr, Maryville, IL

Updated: 4:33 AM CDT

Temperature: 41.4 °F Dew Point: 26 °F Humidity: 53% Wind: Calm Pressure: 29.47 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Barbarotto Compound, Maryville, IL

Updated: 4:33 AM CDT

Temperature: 38.8 °F Dew Point: 33 °F Humidity: 79% Wind: SE at 1.0 mph Pressure: 30.10 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Maryville, IL

Updated: 4:33 AM CDT

Temperature: 42.6 °F Dew Point: 33 °F Humidity: 68% Wind: Calm Pressure: 30.21 in Hourly Precipitation: 0.01 in Windchill: 43 °F Graphs

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

Updated: 4:33 AM CDT

Temperature: 34.3 °F Dew Point: 31 °F Humidity: 87% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Windchill: 34 °F Graphs

Location: New Goose, Fairview Heights, IL

Updated: 4:33 AM CDT

Temperature: 42.5 °F Dew Point: 33 °F Humidity: 70% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: Old Skewl, Fairview Heights, IL

Updated: 4:33 AM CDT

Temperature: 42.0 °F Dew Point: 32 °F Humidity: 67% Wind: Calm Pressure: 18.11 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: STL Metro East, Edwardsville, IL

Updated: 4:33 AM CDT

Temperature: 36.7 °F Dew Point: 15 °F Humidity: 41% Wind: Calm Pressure: 30.18 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Chateau Estates, Fairview Heights, IL

Updated: 4:32 AM CDT

Temperature: 36.8 °F Dew Point: 32 °F Humidity: 82% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Kelly Greens Weather Station, Edwardsville, IL

Updated: 4:27 AM CDT

Temperature: 22.8 °F Dew Point: 22 °F Humidity: 95% Wind: NNW at 3.0 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: 23 °F Graphs

Location: Dunlap Lake, Edwardsville, IL

Updated: 4:33 AM CDT

Temperature: 40.9 °F Dew Point: 33 °F Humidity: 74% Wind: ESE at 1.0 mph Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 41 °F Graphs

Location: Grand Ave, Edwardsville, IL

Updated: 4:33 AM CDT

Temperature: 39.7 °F Dew Point: 34 °F Humidity: 78% Wind: Calm Pressure: 30.24 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Nickel Plate Trail, Edwardsville, IL

Updated: 4:30 AM CDT

Temperature: 42.2 °F Dew Point: 34 °F Humidity: 74% Wind: South at 1.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: West End, Belleville, IL

Updated: 4:33 AM CDT

Temperature: 42.1 °F Dew Point: 20 °F Humidity: 58% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 42 °F Graphs

Location: APRSWXNET Shiloh IL US, Belleville, IL

Updated: 4:03 AM CDT

Temperature: 40 °F Dew Point: 32 °F Humidity: 73% Wind: Calm Pressure: 30.15 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: Belleville, IL, Belleville, IL

Updated: 4:30 AM CDT

Temperature: 37.4 °F Dew Point: 21 °F Humidity: 51% Wind: Calm Pressure: 30.22 in Hourly Precipitation: 0.00 in Windchill: 37 °F Graphs

Location: Rosewood Heights, East Alton, IL

Updated: 4:33 AM CDT

Temperature: 45.4 °F Dew Point: 31 °F Humidity: 56% Wind: South at 5.0 mph Pressure: 30.13 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Millstadt, Millstadt, IL

Updated: 4:33 AM CDT

Temperature: 39.4 °F Dew Point: 27 °F Humidity: 60% Wind: SSE at 4.6 mph Pressure: 30.21 in Hourly Precipitation: 0.00 in Windchill: 36 °F Graphs

Location: Shaw/Tower Grove, St. Louis, MO

Updated: 4:26 AM CDT

Temperature: 43.7 °F Dew Point: 30 °F Humidity: 57% Wind: Calm Pressure: 30.19 in Hourly Precipitation: 0.00 in Windchill: 44 °F Graphs

Location: Hunters Creek, Mascoutah, IL

Updated: 4:33 AM CDT

Temperature: 35.3 °F Dew Point: 31 °F Humidity: 85% Wind: SSE at 1.0 mph Pressure: 30.16 in Hourly Precipitation: 0.00 in Windchill: 35 °F Graphs

Location: RAWS MBOT MO US, Saint Louis, MO

Updated: 3:19 AM CDT

Temperature: 43 °F Dew Point: 32 °F Humidity: 64% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

Location: Milton Area - Oscar, Alton, IL

Updated: 4:30 AM CDT

Temperature: 39.6 °F Dew Point: 33 °F Humidity: 77% Wind: Calm Pressure: 30.13 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: MesoWest GARD IL US UPR, Hamel, IL

Updated: 2:50 AM CDT

Temperature: 38 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Windchill: 38 °F Graphs

Location: Hamel, IL 55/140, Worden, IL

Updated: 4:33 AM CDT

Temperature: 39.4 °F Dew Point: 31 °F Humidity: 72% Wind: SE at 2.7 mph Pressure: 28.67 in Hourly Precipitation: 0.00 in Windchill: 39 °F Graphs

Location: Jim's Back Yard, Trenton, IL

Updated: 4:33 AM CDT

Temperature: 39.6 °F Dew Point: 32 °F Humidity: 74% Wind: Calm Pressure: 30.26 in Hourly Precipitation: 0.00 in Windchill: 40 °F Graphs

Location: South Hampton, Saint Louis, MO

Updated: 4:33 AM CDT

Temperature: 42.7 °F Dew Point: 34 °F Humidity: 71% Wind: Calm Pressure: 30.17 in Hourly Precipitation: 0.00 in Windchill: 43 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service St Louis MO 
311 am CDT Thu Apr 17 2014 


Short term: (through tonight) 
issued at 300 am CDT Thu Apr 17 2014 


A weak cold front will move into the area today and could serve as 
the focus for scattered light rain showers during the afternoon 
and evening. Convergence along the front is not very impressive 
and the low levels are somewhat dry, but the combination of 
increasing large scale ascent ahead of an approaching vort Max 
along with the presence of a surface boundary merits slight chance 
to chance pops. 


Kanofsky 


Long term: (tomorrow through wednesday) 
issued at 300 am CDT Thu Apr 17 2014 


For the last 4 nights in a row, no two consecutive 00z runs of the 
European model (ecmwf)/GFS/Gem have had the same solution for upcoming frontal 
systems, and there has also been a fair amount of variability 
between models regarding the location of important features such as 
upper vorticity maxima and surface boundaries. The latest runs keep 
a strong vort Max and its surface low up near the US/Canada border 
on Fri night and Sat, therefore precipitation is no longer expected 
with this system across the lsx County Warning Area. The dominant feature for 
Fri-Sat now appears to be ridging. Winds should eventually turn 
southerly, bringing warmer air into the region for Sat and 
reinforcing a baroclinic zone extending from the US/Canada system 
as it starts to occlude. A broad trough moving through the Desert 
Southwest could bring precipitation to the area on sun/Mon. Chance 
pops remain an acceptable compromise in light of the model 
uncertainty. Confidence remains low in the forecast for this 
weekend and beyond. 


Kanofsky 


&& 


Aviation: (for the 06z tafs through 06z Thursday night) 
issued at 1149 PM CDT Wed Apr 16 2014 


Anticipate conditions will remain VFR despite a frontal passage 
tomorrow morning. South wind will swing around to the northwest 
with the front and then relax, becoming light and variable 
Thursday evening. The lack of low level moisture keeps the 
forecast dry at this time. 


Specifics for kstl: 


VFR conditions with a south wind becoming southwest tomorrow 
morning and then shifting to the northwest with the cold front 
early tomorrow afternoon. Wind to become light and variable 
tomorrow evening. VFR clouds possible behind the front, but 
moisture looks limited, with a dry forecast continuing. 


Cvking 


&& 


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


$$ 


Weather forecast office lsx 












National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.