Pinpoint Forecasts and Live Weather Conditions for Mount Prospect, Il.
Regional Radar Regional Infrared Satellite
  Courtesy of Weather Underground.  Level3 Radar   Click for Details
WXSIM Risk forecast for Mount Prospect, initialized at 1:00 PM 25 Jul, 2015
Thunderstorm
Thunderstorms are possible Tuesday. Severe Thunderstorms are not anticipated at this time.
Thunderstorms are possible Tuesday Night. Severe Thunderstorms are not anticipated at this time.
Thunderstorms are possible Wednesday. Severe Thunderstorms are not anticipated at this time.
Significant Rain
There is a 80 percent chance of rain Wednesday. The rain will be heavy at times. Total rainfall of around half an inch is possible.
Heat Index
The high on This Afternoon is expected to be 92 with heat indices approaching 101.
The high on Monday is expected to be 92 with heat indices approaching 97.
The high on Tuesday is expected to be 95 with heat indices approaching 100.
The high on Wednesday is expected to be 91 with heat indices approaching 96.
* THIS FORECAST WAS MADE IN AUTOMATED MODE AND MAY BE LESS ACCURATE THAN OTHERWISE *
METRIC | IMPERIAL
Updated: Jul-25-2015 @ 3:30pm  
Temperature Current Conditions In House Forecast / Storm Prediction
Currently Outside: Colder 1°F than last hour.

88.8°F

Heat Index:  89.0°F
---
High Today
90.1°F
1:07 PM
Low Today
72.4°F
6:00 AM
Yesterday High
86.3°F
12:10 PM
Yesterday Low
63.6°F
5:37 AM
24 Hr Change
+5.4°F
Hour Change
-1.0°F
Normal High
84.0°F
Normal Low
68.0°F
Rec* High
105.0°F
1934
Rec* Low
58.0°F
2013
* Records from Weather Underground
Sunny skies, Dry It is Sunny skies, Dry

Wind from NNW Wind:  NNW
12.7

Gusting to:
12.7 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
35.3 of 100
This
afternoon
Fair
Hot!
Fair
Hot!
High: 92°
Tonight

Mostly Clear
Mostly Clear
Low: 73°
Sunday

Mostly Sunny
Mostly Sunny
High: 89°

Click here for full Forecast
SPC Activity Map
Dew Point Liquid Precipitation Wind Sun/Moon
Dew Point: Decreased 9°F since last hour. 62.1°F
In Last Hour: Decreased 9°F since last hour. 9°F
High Dew
Point:
74.8°F
at 1:00 PM
Low Dew
Point:
61.4°F
at 3:26 PM
Record Dew
Point:
82.4°F
Jul-21-2011
Wetbulb: 71.8°F
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.20 in
July Rain: 2.20 in
July Avg: 4.16 in
Diff from Avg: Under 1.96 in for the month -1.96 in
Rain Season:1 15.87 in
Last YTD Rain:1 18.75 in
Last Rain
Time/Date:
7/18/2015
at 5:06 PM
71 rain days in 2015
10 days in July
6 days since last rain
Currently: NNW at
12.7 mph
Gusting To: 12.7
Max Gust: 13.82:01 PM
1Hr Average: 13.8 mph
Month Gust: 43.7 mph Jul 13
Year Gust: 54.1 mph Feb 14
Record Gust: 75.4 mph
on 25-Apr-2014
Wind Run: miles
Daylight:
14 hrs 41 min
of Daylight Today
graph
59.3% 40.7%
Which is
1 min 54 sec shorter
than yesterday
Waxing Gibbous, 12 days, 6 hours, 57 minutes in cycle
89%
Illuminated
Humidity Barometer
Humidity: Decreased 13% since last hour. 41 %
In Last Hour: -13%
High
Today
79%
at 6:22 AM
Low
Today
40%
at 3:26 PM
Current: No Change 29.818 inHg
In Last Hour: Steady
High
Today:
29.874
at 12:07 AM
Low
Today:
29.817
at 3:02 PM
Cooling Degree Days Snow3 Heat Index Air
Today: 6.8
July: 164.5
2015 to Date: 346.0
Heating Degree Days
2015 to Date: 4416.3
Today: 0.00 in
Yesterday: 0.00 in
July: No Change 0.00 in
July Avg: 0.00 in
Diff from Avg: 0.00 in
Season Total:2 0.00 in
Snow Depth: 0.00 in
0 snow day in July
0 snow day this season.2
First Snow of Season:
1/3/2015
Average 1st Snow:
30 of Nov
Current: 89.0°F
Today: 99.6°F 
Yesterday: 86.5°F
Record: 127.4°F
Jun-28-2012
Quality
Index6:

68


Moderate
Density:
1.146 kg/m3
Current UV Index Current Solar Energy9
3.7
Sunburn in
30 Minutes
Highest:
1:13 PM
10.0
633 W/m2
77%
W/m2 SI
High Today:
12:05 PM
916  W/m2 Record:1292 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
Week Avg Temp: 76.1°F
MTD Avg Temp: 71.0°F
YTD Avg Temp: 45.5°F
Sunrise: 5:37 am
Sunset: 8:18 pm
Moonrise: 2:54 pm
Moonset: 12:40 am
Full Moon: July 31 2015
New Moon: 14:54 UTC August 14 2015
Updated at Midnight
Current ET: 0.28 in
7-Days Rain: 0.20 in
7-Days ET: 1.70 in
7-Day:  1.496 in water in deficit of what evaporated in last 7 days. -1.496 in 1.496 in water in deficit of what evaporated in last 7 days. in
July:  7.55 in water in excess of what evaporated this month. 7.55 in
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HIGHS: LOWS:
106.5°F
06-Jul-2012
-17.3°F
06-Jan-2014
Daytime Records
  96.8°F
Jul-06-2012
  -13.7°F
Jan-06-2014
Nitetime Records
  88.0°F
Jul-07-2012
  -13.2°F
Jan-07-2014
ICN:0 | S3C2:1
ISS:Ok | CON:4.7 | RCP:99%
1 Rain season: Jan 1st to Dec 31st.    2 Snow season July 1st to June 30th.    3 Snow manually measured usually around 7AM and 7PM.    5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present.) 6 Air Quality Index is provided by Minnesota Polution Control Agency and is updated hourly between the hours of 6AM and Midnight. 9 Solar Index represents either an absolute scale of solar energy (W/m²) using the station’s recorded maximum or a percentage of computed theoretical solar maximum using the station’s location and time of day. These indices differ most when the sun is low on the horizon. The current scale is shown, and will toggle if it or the icon is clicked.  
 NWS Weather Forecast  -   Outlook NWS Forecast for: Mount Prospect IL
Issued by: National Weather Service Chicago, IL
Last Update &

High: 92°
NWS forecast:

Low: 73°
NWS forecast:
 NWS Short Term Weather Forecast

High: 89°

Low: 70°

High: 92°

Low: 71°

High: 95°

Low: 76°

High: 91°
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