Highland, Illinois Weather Conditions

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Current Conditions

  • 75°
  • Light Rain
  • Wind: Variable 4 mph
  • Humidity: 100%
  • Visibility: 10.0 miles
  • Dew Point: 75°
  • Pressure: 29.91 in. 0

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Next 12 Hours

10  am
1  pm
4  pm
7  pm
10  pm
Chance of a Thunderstorm
Chance of T-storms
Chance of a Thunderstorm
Chance of T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
Thunderstorm
T-storms
81°
77°
88°
84°
72°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Thunderstorm
  • High: 88 °
  • Low: 72 °
  • T-Storms
  • Tuesday
  • Chance of a Thunderstorm
  • High: 86 °
  • Low: 70 °
  • Chance of T-Storms
  • Wednesday
  • Chance of a Thunderstorm
  • High: 84 °
  • Low: 72 °
  • Chance of T-Storms
  • Thursday
  • Clear
  • High: 90 °
  • Low: 73 °
  • Clear
  • Friday
  • Partly Cloudy
  • High: 88 °
  • Low: 63 °
  • Partly Cloudy

Forecast for Highland, Illinois

Updated: 4:00 AM CDT on September 01, 2014

  • Monday

    Clear with a chance of a thunderstorm and a chance of rain, then thunderstorms in the afternoon. High of 88F with a heat index of 95F. Breezy. Winds from the SSW at 10 to 20 mph. Chance of rain 60%.

  • Monday Night

    Overcast with thunderstorms and rain showers. Fog overnight. Low of 72F. Winds from the SW at 5 to 15 mph. Chance of rain 80% with rainfall amounts near 1.0 in. possible.

  • Tuesday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 86F. Winds from the West at 5 to 10 mph. Chance of rain 40%.

  • Tuesday Night

    Clear with a chance of a thunderstorm and a chance of rain in the evening, then partly cloudy with a chance of a thunderstorm and a chance of rain. Low of 70F. Winds less than 5 mph. Chance of rain 30%.

  • Wednesday

    Partly cloudy with a chance of a thunderstorm and a chance of rain. High of 84F with a heat index of 90F. Winds from the SSE at 5 to 10 mph. Chance of rain 30%.

  • Wednesday Night

    Partly cloudy. Fog overnight. Low of 72F. Winds from the SSE at 5 to 10 mph.

  • Thursday

    Partly cloudy. Fog early. High of 90F with a heat index of 99F. Winds from the SSW at 5 to 10 mph.

  • Thursday Night

    Partly cloudy with a chance of a thunderstorm and rain. Low of 73F. Winds from the SSW at 5 to 15 mph.

  • Friday

    Partly cloudy in the morning, then clear. High of 88F with a heat index of 93F. Winds from the WSW at 5 to 10 mph.

  • Friday Night

    Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 63F. Winds from the North at 5 to 10 mph. Chance of rain 50%.

  • Saturday

    Clear. High of 84F. Winds from the NE at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 57F. Winds from the NE at 5 to 10 mph.

  • Sunday

    Clear with a chance of a thunderstorm. High of 77F. Winds from the NE at 5 to 10 mph. Chance of rain 20%.

  • Sunday Night

    Partly cloudy. Low of 57F. Winds from the East at 5 to 10 mph.

  • Monday

    Partly cloudy. High of 82F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 63F. Winds from the SE at 5 to 10 mph.

  • Tuesday

    Partly cloudy. High of 86F. Winds less than 5 mph.

  • Tuesday Night

    Partly cloudy. Fog overnight. Low of 64F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 88F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Fog overnight. Low of 64F. Winds less than 5 mph.

  • Thursday

    Clear with a chance of a thunderstorm. High of 88F. Winds less than 5 mph. Chance of rain 40%.

  • Thursday Night

    Clear. Fog overnight. Low of 64F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

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

Updated: 8:38 AM CDT

Temperature: 76.5 °F Dew Point: 74 °F Humidity: 92% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Mallard Pointe, Troy, IL

Updated: 8:38 AM CDT

Temperature: 77.2 °F Dew Point: 71 °F Humidity: 82% Wind: West at 3.8 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

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

Updated: 8:38 AM CDT

Temperature: 75.6 °F Dew Point: 70 °F Humidity: 83% Wind: West at 6.8 mph Pressure: 28.40 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Kelly Greens Weather Station, Edwardsville, IL

Updated: 8:22 AM CDT

Temperature: 72.4 °F Dew Point: 71 °F Humidity: 94% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Brian's backyard, Trenton, IL

Updated: 8:38 AM CDT

Temperature: 75.4 °F Dew Point: 73 °F Humidity: 92% Wind: SSW at 6.3 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Jim's Back Yard, Trenton, IL

Updated: 8:38 AM CDT

Temperature: 75.6 °F Dew Point: 73 °F Humidity: 91% Wind: Calm Pressure: 27.23 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Dunlap Lake, Edwardsville, IL

Updated: 8:25 AM CDT

Temperature: 76.2 °F Dew Point: 71 °F Humidity: 84% Wind: SW at 4.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: North Horner Park, Lebanon, IL

Updated: 8:37 AM CDT

Temperature: 76.0 °F Dew Point: 64 °F Humidity: 67% Wind: WSW at 4.0 mph Pressure: 29.40 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Liberty Place, Troy, IL

Updated: 8:30 AM CDT

Temperature: 75.9 °F Dew Point: 71 °F Humidity: 85% Wind: SW at 7.0 mph Pressure: 29.27 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Nickel Plate Trail, Edwardsville, IL

Updated: 8:35 AM CDT

Temperature: 74.7 °F Dew Point: 70 °F Humidity: 84% Wind: South at 1.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Rezy Road, Staunton, IL

Updated: 8:38 AM CDT

Temperature: 74.7 °F Dew Point: 72 °F Humidity: 92% Wind: SW at 2.9 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: SW of Aviston, Aviston, IL

Updated: 8:38 AM CDT

Temperature: 74.7 °F Dew Point: 72 °F Humidity: 92% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Grand Ave, Edwardsville, IL

Updated: 8:38 AM CDT

Temperature: 76.5 °F Dew Point: 68 °F Humidity: 74% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Barbarotto Compound, Maryville, IL

Updated: 8:38 AM CDT

Temperature: 75.1 °F Dew Point: 69 °F Humidity: 82% Wind: WNW at 1.0 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Rolling Meadows Dr, Maryville, IL

Updated: 8:38 AM CDT

Temperature: 75.2 °F Dew Point: 67 °F Humidity: 76% Wind: Calm Pressure: 29.26 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Blue Streaks AtmoBug Greenville, Greenville, IL

Updated: 8:24 AM CDT

Temperature: 75.6 °F Dew Point: 73 °F Humidity: 93% Wind: ESE at 3.2 mph Pressure: 29.82 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: Nolan Creek, OFallon, IL

Updated: 8:24 AM CDT

Temperature: 76.3 °F Dew Point: 72 °F Humidity: 85% Wind: WSW at 7.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

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

Updated: 8:38 AM CDT

Temperature: 76.1 °F Dew Point: 73 °F Humidity: 91% Wind: WNW at 1.6 mph Pressure: 29.66 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Collinsville West, Collinsville, IL

Updated: 8:38 AM CDT

Temperature: 74.9 °F Dew Point: 66 °F Humidity: 75% Wind: WNW at 4.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: MesoWest WALSHJ IL US UPR, Grisham, IL

Updated: 6:25 AM CDT

Temperature: 72 °F Dew Point: - Humidity: - Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Knight Compound, Dorsey, IL

Updated: 8:38 AM CDT

Temperature: 73.7 °F Dew Point: 68 °F Humidity: 81% Wind: Calm Pressure: 29.69 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Hunters Creek, Mascoutah, IL

Updated: 8:38 AM CDT

Temperature: 75.0 °F Dew Point: 71 °F Humidity: 88% Wind: SW at 8.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Chateau Estates, Fairview Heights, IL

Updated: 8:38 AM CDT

Temperature: 75.3 °F Dew Point: 69 °F Humidity: 82% Wind: SSW at 4.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Courthouse, Carlyle, IL

Updated: 8:28 AM CDT

Temperature: 76.4 °F Dew Point: 73 °F Humidity: 89% Wind: West at 9.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Rosewood Heights, East Alton, IL

Updated: 8:38 AM CDT

Temperature: 73.9 °F Dew Point: 64 °F Humidity: 72% Wind: Calm Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: StormGrl2001, Fairview Heights, IL

Updated: 8:33 AM CDT

Temperature: 75.4 °F Dew Point: 71 °F Humidity: 86% Wind: West at 3.7 mph Pressure: 29.82 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: North Benld, Benld, IL

Updated: 8:38 AM CDT

Temperature: 74.2 °F Dew Point: 71 °F Humidity: 91% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: 72 °F Graphs

Location: New Goose, Fairview Heights, IL

Updated: 8:38 AM CDT

Temperature: 75.2 °F Dew Point: 70 °F Humidity: 83% Wind: Calm Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 75 °F Graphs

Location: Old Skewl, Fairview Heights, IL

Updated: 8:38 AM CDT

Temperature: 72.6 °F Dew Point: 71 °F Humidity: 94% Wind: Calm Pressure: - Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET Shiloh IL US, Belleville, IL

Updated: 8:03 AM CDT

Temperature: 75 °F Dew Point: 72 °F Humidity: 91% Wind: SW at 4 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: MesoWest I -55/64/70 @ Poplar St Bridge IL US ILDOT, Fairmont City, IL

Updated: 7:55 AM CDT

Temperature: 77 °F Dew Point: 71 °F Humidity: 82% Wind: SW at 15 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

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

Updated: 8:38 AM CDT

Temperature: 74.3 °F Dew Point: 71 °F Humidity: 89% Wind: WSW at 5.1 mph Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: 73 °F Graphs

Location: Belleville, IL, Belleville, IL

Updated: 8:38 AM CDT

Temperature: 74.8 °F Dew Point: 67 °F Humidity: 76% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Milton Area - Oscar, Alton, IL

Updated: 8:31 AM CDT

Temperature: 74.5 °F Dew Point: 67 °F Humidity: 78% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: 75 °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 
650 am CDT Mon Sep 1 2014 


Short term: (today through tonight) 
issued at 344 am CDT Mon Sep 1 2014 


There are three interconnected forecast issues covering today 
through tomorrow: convective timing, the potential for severe 
weather, and the potential for heavy rainfall. The main factors 
involved with the forecast are the ongoing early morning 
convection with its outflow boundaries, an upstream synoptic cold 
front, and a couple of shortwaves moving through a broad longwave 
trough. 


If the early morning convection dissipates across our area, then the 
air mass is likely to destabilize ahead of the approaching synoptic 
cold front. Models are forecasting up to 2000-3000 j/kg of cape 
and between 30-60 kts of 0-6 km bulk shear across most of the County Warning Area 
during the afternoon/evening hours ahead of the front. These 
parameters are more than sufficient to support organized severe 
thunderstorms. With at least a few models depicting a small but 
nonzero perpendicular component to the shear vectors with respect 
to the 850 mb boundary orientation, it would not be surprising to see 
a few supercells somewhere across the region before convection 
starts to congeal and become more linear with time. If the models 
are correct with the orientation of the shear vectors with respect 
to the cold front, then aftn/eve convection should become linear 
very quickly. 


As of 0830z, early morning convection appears to be diminishing 
over northern/northeastern MO, lending credence to the above 
scenario. However, if the early morning convection does not 
dissipate and if the outflow boundary is pushed farther to the 
south, then the overall coverage of severe thunderstorms would 
probably be much lower and would tend to be limited to the 
southern County Warning Area. 


Moving into tonight, the cold front becomes oriented nearly parallel 
to the 0-6 km shear vectors, and the primary forecast issue then 
shifts from severe weather to heavy rainfall. Overall, this looks 
like a decent setup for locally heavy rainfall. Precipitable water values 
increase to over 2" tonight, which is not only at +2sd and the 99th 
percentile for August, but also exceeds both of those thresholds for 
September. Models also depict broad lift from favorable jet coupling 
(between the rer of a jet at h25 and the ler of a jet at h85) which 
develops by 06z in response to a shortwave moving through neb/IA. 
In addition, MUCAPE remains quite high overnight and the mid-level 
flow also appears to be nearly parallel to the cold front. Because 
of these factors, i'm reasonably sure that there is going to be an 
elongated band of convection overnight, but i'm not sure whether 
it will be with the true synoptic cold front (resulting in a band 
of rainfall near the I-70 corridor) or with the outflow/effective 
boundary (resulting in a band of rainfall located much farther 
south, possibly only affecting the southern cwa). 


Flash flood guidance numbers are around 2-3" for 1 hour, 2.5-3.5" 
for 3 hours, and 3-5" for 6 hours. There hasn't been much rainfall 
over the last few days, therefore the ground is not saturated and 
can probably absorb a fair amount of water before widespread 
flooding becomes a concern. There is also a question about where 
the axis of heaviest rainfall will occur. For these reasons, we 
will hold off on any flood/flash flood watches for now. 


Kanofsky 


Long term: (tuesday through sunday) 
issued at 344 am CDT Mon Sep 1 2014 


The front and/or effective boundary should linger across the 
region on Tue/Tue night before lifting northeastward as a warm 
front on Wed/Wed night. The precipitation threat will also lift 
northeastward with the warm front during the middle of the week. 
Model solutions then depict a cold front moving into the area 
towards the end of the week and into next weekend, bringing a 
chance of rain and a cooler air mass into the region. 


Kanofsky 


&& 


Aviation: (for the 12z tafs through 12z Tuesday morning) 
issued at 639 am CDT Mon Sep 1 2014 


Weakening area of showers and spotty thunderstorms extending from 
KUIN into central and east central MO will move eastward early 
this morning and eventually dissipate. It will be exiting KUIN and 
kcou by 13z and should impact the St. Louis area terminals for 
several hours this morning with predominately VFR conditions and 
occasionally high-end MVFR vsbys with showers. After this 
precipitation ends, a rather large lull is expected until 21z or 
so when new thunderstorm development is anticipated along a 
corridor impacting kcou and the St. Louis area terminals. Some of 
the guidance suggests this could be a rather prolonged period of 
showers and thunderstorms, pushing south by late evening. 
Confidence is low that any of this afternoon and evening 
thunderstorm development will impact KUIN and hence just kept with 
the mention of thunderstorms in the vicinity. 


Specifics for kstl: 


Showers will impact the terminal until around mid-morning with 
predominately VFR conditions and occasionally high-end MVFR vsbys 
with the showers. After this precipitation ends, a rather large 
lull is expected until after 21z or so when new thunderstorm 
development is anticipated that will impact kstl. Some of the 
guidance suggests this could be a rather prolonged period of 
showers and thunderstorms, pushing south by late evening. 


Glass 


&& 


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


$$ 


Weather forecast office lsx 












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