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 7:00 AM 22 Aug, 2015
No Hazards
Significant weather events are not anticipated in the forecast period.
* THIS FORECAST WAS MADE IN AUTOMATED MODE AND MAY BE LESS ACCURATE THAN OTHERWISE *
METRIC | IMPERIAL
Updated: Aug-22-2015 @ 9:40am  
Temperature Current Conditions In House Forecast / Storm Prediction
Currently Outside: Warmer 4.1°F than last hour.

78.2°F

---
High Today
78.2°F
9:38 AM
Low Today
60.6°F
6:08 AM
Yesterday High
84.6°F
2:13 PM
Yesterday Low
54.2°F
6:13 AM
24 Hr Change
+4.3°F
Hour Change
+4.1°F
Normal High
82.0°F
Normal Low
66.0°F
Rec* High
103.0°F
1936
Rec* Low
51.0°F
1928
* Records from Weather Underground
Sunny skies, Dry It is Sunny skies, Dry

Wind from S Wind:  S
8.1

Gusting to:
8.1 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
26.8 of 100
Today

Sunny
Sunny
High: 80°
Tonight

Mostly Cloudy
Mostly Cloudy
Low: 65°
Sunday

Partly Cloudy
Partly Cloudy
High: 77°

Click here for full Forecast
SPC Activity Map
Dew Point Liquid Precipitation Wind Sun/Moon
Dew Point: Decreased 0.7°F since last hour. 55.1°F
In Last Hour: Decreased 0.7°F since last hour. 0.7°F
High Dew
Point:
59.4°F
at 7:20 AM
Low Dew
Point:
52.2°F
at 5:10 AM
Record Dew
Point:
82.4°F
Jul-21-2011
Wetbulb: 64.7°F
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.62 in
August Rain: 1.17 in
August Avg: 3.44 in
Diff from Avg: Under 2.27 in for the month -2.27 in
Rain Season:1 17.05 in
Last YTD Rain:1 22.03 in
Last Rain
Time/Date:
8/18/2015
at 11:33 PM
78 rain days in 2015
6 days in August
3 days since last rain
Currently: S at
8.1 mph
Gusting To: 8.1
Max Gust: 9.22:01 PM
1Hr Average: 6.4 mph
Month Gust: 46.0 mph Aug 14
Year Gust: 54.1 mph Feb 14
Record Gust: 75.4 mph
on 25-Apr-2014
Wind Run: miles
Daylight:
13 hrs 37 min
of Daylight Today
graph
55.1% 44.9%
Which is
2 min 33 sec shorter
than yesterday
Waxing Gibbous, 13 days, 6 hours, 18 minutes in cycle
96%
Illuminated
Humidity Barometer
Humidity: Decreased 8% since last hour. 45 %
In Last Hour: -8%
High
Today
80%
at 6:42 AM
Low
Today
44%
at 9:32 AM
Current: No Change 30.047 inHg
In Last Hour: Steady
High
Today:
30.057
at 7:41 AM
Low
Today:
30.016
at 12:06 AM
Cooling Degree Days Snow3 Heat Index Air
Today: 0.5
August: 163.2
2015 to Date: 558.5
Heating Degree Days
2015 to Date: 4416.3
Today: 0.00 in
Yesterday: 0.00 in
August: No Change 0.00 in
August 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 August
0 snow day this season.2
First Snow of Season:
1/3/2015
Average 1st Snow:
30 of Nov
Current: 79.1°F
Today: 78.2°F 
Yesterday: 83.3°F
Record: 127.4°F
Jun-28-2012
Quality
Index6:

79


Moderate
Density:
1.180 kg/m3
Current UV Index Current Solar Energy9
1.3
Sunburn in
86 Minutes
Highest:
8:33 AM
5.5
561 W/m2
100%
W/m2 SI
High Today:
9:39 AM
561  W/m2 Record:1292 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Morning
Week Avg Temp: 72.8°F
MTD Avg Temp: 73.0°F
YTD Avg Temp: 48.4°F
Sunrise: 6:06 am
Sunset: 7:43 pm
Moonrise: 1:39 pm
Moonset: 11:14 pm
Full Moon: August 29 2015
New Moon: 06:42 UTC September 13 2015
Updated at Midnight
Current ET: 0.18 in
7-Days Rain: 0.62 in
7-Days ET: 2.16 in
7-Day:  1.539 in water in deficit of what evaporated in last 7 days. -1.539 in 1.539 in water in deficit of what evaporated in last 7 days. in
August:  6.98 in water in excess of what evaporated this month. 6.98 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:4.6 | RCP:100%
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: 80°
NWS forecast:

Low: 65°
NWS forecast:
 NWS Short Term Weather Forecast

High: 77°

Low: 56°

High: 74°

Low: 54°

High: 74°

Low: 54°

High: 76°
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