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 21 Apr, 2015
Wind Gust
Gusty winds are forecast for This Afternoon. Expect a wind chill around 38.
* THIS FORECAST WAS MADE IN AUTOMATED MODE AND MAY BE LESS ACCURATE THAN OTHERWISE *
METRIC | IMPERIAL
Updated: Apr-21-2015 @ 11:55am  
Temperature Current Conditions In House Forecast / Storm Prediction
Currently Outside: Warmer 2°F than last hour.

47.2°F

Feels like:  38°F
---
High Today
47.6°F
11:42 AM
Low Today
37.8°F
6:07 AM
Yesterday High
51.1°F
6:43 AM
Yesterday Low
40.7°F
11:59 PM
24 Hr Change
+3.3°F
Hour Change
+2.0°F
Normal High
62.0°F
Normal Low
44.0°F
Rec* High
86.0°F
1985
Rec* Low
28.0°F
1943
* Records from Weather Underground
Overcast, Windy It is Overcast, Windy

Wind from W Wind:  W
29.9

Gusting to:
49 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
26.9 of 100
This
afternoon
Mostly Cloudy
Mostly Cloudy
High: 49°
Tonight

Partly Cloudy
Cold!
Partly Cloudy
Cold!
Low: 33°
Wednesday

Rain and Snow
Cold!
Rain and Snow
Cold!
High: 43°

Click here for full Forecast
SPC Activity Map
Dew Point Liquid Precipitation Wind Sun/Moon
Dew Point: Decreased 1.4°F since last hour. 25.3°F
In Last Hour: Decreased 1.4°F since last hour. 1.4°F
High Dew
Point:
32.8°F
at 2:18 AM
Low Dew
Point:
25.3°F
at 11:54 AM
Record Dew
Point:
82.4°F
Jul-21-2011
Wetbulb: 39.3°F
Today: 0.00 in
Yesterday: 0.02 in
Last 7 Days: 0.44 in
April Rain: 2.76 in
April Avg: 4.79 in
Diff from Avg: Under 2.03 in for the month -2.03 in
Rain Season:1 3.74 in
Last YTD Rain:1 5.13 in
Last Rain
Time/Date:
04/20/2015
at 10:09 AM
26 rain days in 2015
8 days in April
0 day since last rain
Currently: W at
29.9 mph
Gusting To: 49
Max Gust: 4910:01 AM
1Hr Average: 29.9 mph
Month Gust: 53 mph Apr 10
Year Gust: 54 mph Feb 14
Record Gust: 75 mph
on 25-Apr-2014
Wind Run: miles
Daylight:
13 hrs 36 min
of Daylight Today
graph
55.1% 44.9%
Which is
2 min 38sec longer
than yesterday
Evening Crescent, 6 days, 6 hours, 52 minutes in cycle
40%
Illuminated
Humidity Barometer
Humidity: Decreased 6% since last hour. 42 %
In Last Hour: -6%
High
Today
75%
at 2:18 AM
Low
Today
42%
at 11:50 AM
Current: Rising 0.006  inHg/hr 29.580 inHg
In Last Hour: Steady
High
Today:
29.585
at 11:24 AM
Low
Today:
29.545
at 3:09 AM
Heating Degree Days Snow3 Wind Chill Air
Today: 12.3
April: 289.7
2015 to Date: 3909.4
Cooling Degree Days
2015 to Date: 0.0
Today: 0.00 in
Yesterday: 0.00 in
April: Under 0.276 in for the month 0.00 in
April Avg: 0.28 in
Diff from Avg: -0.28 in
Season Total:2 49.90 in
Snow Depth: 0.00 in
0 snow day in April
19 snow days this season.2
First Snow of Season:
11/15/2014
Average 1st Snow:
30 of November
Current: 38.3°F
Today: 27.4°F  at 6:07 AM
Yesterday: 32.7°F
Record: -45.8°F
Jan-6-2014
Quality
Index6:

50


Good
Density:
1.237 kg/m3
Current UV Index Current Solar Energy9
0.0
Sunburn in
N/A Minutes
Highest:
11:33 AM
2.2
25 W/m2
0%
W/m2 SI
High Today:
11:13 AM
494  W/m2 Record:1229 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Morning
Week Avg Temp: 53.1°F
MTD Avg Temp: 50.9°F
YTD Avg Temp: 29.7°F
Sunrise: 6:02 AM
Sunset: 7:38 PM
Moonrise: 8:17 AM
Moonset: 9:55 PM
Full Moon: 4 May 2015
New Moon: 04:14 UTC 18 May 2015
Updated at Midnight
Current ET: 0.11 in
7-Days Rain: 0.44 in
7-Days ET: 0.89 in
7-Day:  0.453 in water in deficit of what evaporated in last 7 days. -0.453 in 0.453 in water in deficit of what evaporated in last 7 days. in
April:  0.45 in water in excess of what evaporated this month. 0.45 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:33 | 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 Tonight & Saturday
Tonight

Showers Likely. Chance for Measurable Precipitation 60%
Showers
Likely
Lo 42 °F
NWS forecast: Showers likely, mainly before 1am. Cloudy, with a low around 42. East northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday

Rain. Chance for Measurable Precipitation 100%
Rain

Hi 45 °F
NWS forecast: Rain. High near 45. Breezy, with an east wind 15 to 20 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
 NWS Short Term Weather Forecast
Saturday
Night

Slight Chc Rain. Chance for Measurable Precipitation 20%
Slight Chc
Rain
Lo 36 °F
Sunday

Breezy
Breezy

Hi 51 °F
Sunday
Night

Mostly Clear
Mostly
Clear
Lo 35 °F
Monday

Sunny
Sunny

Hi 54 °F
Monday
Night

Mostly Clear
Mostly
Clear
Lo 37 °F
Tuesday

Sunny
Sunny

Hi 60 °F
Tuesday
Night

Partly Cloudy
Partly
Cloudy
Lo 42 °F
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