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 11:00 AM 28 Mar, 2015
Thunderstorm
Thunderstorms are likely Wednesday Night. Severe Thunderstorms are not anticipated at this time.
Blowing Snow
Gusty winds are forecast for Sunday. Expect a wind south-southwest around 21 mph, gusting to 32 mph. Blowing and drifting snow is possible, which may cause restrictions in visibility.
Significant Rain
There is a 80 percent chance of rain Wednesday Night. The rain will be heavy at times. Total rainfall of between half an inch and one inch is possible.
* THIS FORECAST WAS MADE IN AUTOMATED MODE AND MAY BE LESS ACCURATE THAN OTHERWISE *
METRIC | IMPERIAL
Updated: Mar-28-2015 @ 12:40pm  
Temperature Current Conditions In House Forecast / Storm Prediction
Currently Outside: Warmer 0.6°F than last hour.

32.3°F

Wind Chill:  25.2°F
Feels like:  25°F
---
High Today
32.7°F
12:32 PM
Low Today
15.2°F
6:56 AM
Yesterday High
31.0°F
12:00 AM
Yesterday Low
19.4°F
11:57 PM
24 Hr Change
+4.7°F
Hour Change
+0.6°F
Normal High
52.0°F
Normal Low
35.0°F
Rec* High
78.0°F
1968
Rec* Low
9.0°F
1934
* Records from Weather Underground
Station Record Low
Mostly cloudy skies, Dry It is Mostly cloudy skies, Dry

Wind from ENE Wind:  ENE
8.1

Gusting to:
8 mph
Current Snow Snow3:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
14.5 of 100
This
afternoon
Clear
Clear
High: 38°
Tonight

Partly Cloudy
Cold!
Partly Cloudy
Cold!
Low: 29°
Sunday

Chance rain
Chance rain
High: 50°

Click here for full Forecast
SPC Activity Map
Dew Point Liquid Precipitation Wind Sun/Moon
Dew Point: Decreased 1.3°F since last hour. 15.7°F
In Last Hour: Decreased 1.3°F since last hour. 1.3°F
High Dew
Point:
19.8°F
at 8:23 AM
Low Dew
Point:
11.0°F
at 6:56 AM
Record Dew
Point:
82.4°F
Jul-21-2011
Wetbulb: 27.4°F
Melt Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.05 in
March Rain: 0.10 in
March Avg: 1.29 in
Diff from Avg: Under 1.19 in for the month -1.19 in
Rain Season:1 0.97 in
Last YTD Rain:1 3.87 in
Last Rain
Time/Date:
03/25/2015
at 3:36 AM
17 rain days in 2015
6 days in March
2 days since last rain
Currently: ENE at
8.1 mph
Gusting To: 8
Max Gust: 1411:01 AM
1Hr Average: 12.1 mph
Month Gust: 46 mph Mar 17
Year Gust: 54 mph Feb 14
Record Gust: 75 mph
on 25-Apr-2014
Wind Run: miles
Daylight:
12 hrs 30 min
of Daylight Today
graph
50.8% 49.2%
Which is
2 min 51sec longer
than yesterday
Waxing Gibbous, 8 days, 8 hours, 5 minutes in cycle
63%
Illuminated
Humidity Barometer
Humidity: Decreased 4% since last hour. 50 %
In Last Hour: -4%
High
Today
87%
at 7:34 AM
Low
Today
48%
at 12:22 PM
Current: Falling 0.005  inHg/hr 30.343 inHg
In Last Hour: Steady
High
Today:
30.350
at 11:31 AM
Low
Today:
30.216
at 12:27 AM
Heating Degree Days Snow3 Wind Chill Air
Today: 24.4
March: 836.7
2015 to Date: 3541.3
Cooling Degree Days
2015 to Date: 0.0
Today: 0.00 in
Yesterday: 0.80 in
March: Over 4.907 in for the month 6.60 in
March Avg: 1.69 in
Diff from Avg: 4.91 in
Season Total:2 49.90 in
Snow Depth: 0.00 in
3 snow days in March
19 snow days this season.2
First Snow of Season:
11/15/2014
Average 1st Snow:
30 of November
Current: 25.2°F
Today: 6.5°F  at 6:56 AM
Yesterday: 6.3°F
Record: -45.8°F
Jan-6-2014
Quality
Index6:

35


Good
Density:
1.308 kg/m3
Current UV Index Current Solar Energy9
1.1
Sunburn in
102 Minutes
Highest:
12:32 PM
1.1
274 W/m2
48%
W/m2 SI
High Today:
12:29 PM
274  W/m2 Record:1229 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
Week Avg Temp: 30.6°F
MTD Avg Temp: 34.7°F
YTD Avg Temp: 24.1°F
Sunrise: 6:41 AM
Sunset: 7:11 PM
Moonrise: 1:10 PM
Moonset: 2:50 AM
Full Moon: 4 April 2015
New Moon: 18:57 UTC 18 April 2015
Updated at Midnight
Current ET: 0.04 in
7-Days Rain: 0.05 in
7-Days ET: 0.27 in
7-Day:  0.22 in water in deficit of what evaporated in last 7 days. -0.22 in 0.22 in water in deficit of what evaporated in last 7 days. in
March:  1.48 in water in deficit of what evaporated this month. -1.48 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:19 | 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 This Afternoon & Tonight
This
Afternoon

Sunny
Sunny

Hi 36 °F
NWS forecast: Sunny, with a high near 36. East northeast wind 5 to 10 mph.
Tonight

Increasing Clouds
Increasing
Clouds
Lo 25 °F
NWS forecast: Increasing clouds, with a low around 25. East wind 5 to 10 mph becoming south after midnight.
 NWS Short Term Weather Forecast
Sunday

Snow/Sleet. Chance for Measurable Precipitation 90%
Snow/Sleet

Hi 45 °F
Sunday
Night

Showers Likely. Chance for Measurable Precipitation 60%
Showers
Likely
Lo 30 °F
Monday

Sunny
Sunny

Hi 54 °F
Monday
Night

Chance Rain. Chance for Measurable Precipitation 30%
Chance
Rain
Lo 40 °F
Tuesday

Mostly Sunny
Mostly
Sunny
Hi 59 °F
Tuesday
Night

Mostly Clear
Mostly
Clear
Lo 34 °F
Wednesday

Mostly Sunny
Mostly
Sunny
Hi 65 °F
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