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Putnam County, IL Weather and Climate Synopsis

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A joint service of the UK Ag Weather Center and the National Weather Service.

Weather Summary For Central And Southeast Illinois
National Weather Service Lincoln IL
433 AM CDT Mon Jun 18 2018

Mostly clear skies prevailed through the overnight hours. 
Temperatures overnight fell into the mid to upper 70s across 
central and southern Illinois.

Hot and humid conditions will continue today. Heat index values
of 100 to 105 degree are expected. A frontal boundary will slowly
drift into northern Illinois this afternoon, bringing a chance of
showers and thunderstorms to central and northern Illinois this 
afternoon into tonight. Chances for showers and thunderstorms will
continue through the week.

High temperatures today will reach the low to mid 90s across the
Midwest. Low temperatures tonight will range from the low 60s
across northern Illinois, to the mid 70s across central and
southern Illinois.

National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]

Click here for UKAWC Point Agricultural, Lawn & Garden Forecast/Outlook in case of corrupt tables.
Regional Hourly Observations For PUTNAM County
Issued at 400 AM CDT MON JUN 18 2018

NORTH CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       FAIR      78  71  79 SW9       29.94S HX  80           
FREEPORT*      FAIR      76  72  85 SW13      29.95R                  
ROCHELLE*      FAIR      74  73  96 SW6       29.95S                  
DE KALB*       FAIR      72  72  99 S7        29.96F                  
PERU*          FAIR      77  73  87 SW9       29.96F                  

Current Temperatures, Dewpoint Map, RH, Wind, Regional Obs, Surface 4-Panel
Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford


Current Agricultural Weather Conditions in Illinois
Based on observations at 400am CDT, Monday June 18, 2018

Across Illinois...temperatures are near 78 degrees north, near 77 degrees central, and near 75 degrees south. Current sky conditions are fair north, fair central, and fair south. In the north, relative humidity is near 79%, and the dew point is near 71 degrees. The heat index is near 80 degrees north. In the central part of the state, relative humidity is near 84%, and the dew point is near 72 degrees. In the south, relative humidity is near 93%, and the dew point is near 73 degrees. The livestock heat stress category is no stress north, no stress central, and no stress south. Winds are from the southwest at 9 mph north, where conditions are favorable for spraying. Winds are from the southwest at 9 mph central, where conditions are favorable for spraying. Winds are from the south at 5 mph south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 180/ degrees at Northerly Island. The lowest temperature is 72 degrees at De Kalb.


Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this county will these
forecasts be issued. Currently, there is no short term forecast in effect.

US Radar, All NWS Radars (In near-real time),Livestock Heat Stress Index (LSI), Wind Chill Map
Hazardous Weather Outlook For PUTNAM County,IL

420 AM CDT Mon Jun 18 2018

 DAY ONE  TODAY AND TONIGHT

Heat warnings and advisories are in effect for the outlook area
through this afternoon. A combination of high heat and humidity 
will produced dangerous afternoon heat index values of 100 to 105 
degrees. 

Scattered thunderstorms will develop by late afternoon north of
Highway 30, then increase in coverage tonight, especially north of
Interstate 80. Areas north of Highway 30 are favored for 
potential heavy rain and flash flooding. There is a low risk of 
severe storms north of Highway 34, with pockets of damaging wind 
the main threat.

Area rivers are experiencing flooding. Please see the latest 
Flood Statements and Flood Warnings for details.

 DAYS TWO THROUGH SEVEN  TUESDAY THROUGH SUNDAY

Thunderstorms are expected to redevelop on Tuesday and move 
across much of the area through Tuesday evening. Some of these 
storms may become strong to severe with damaging wind the primary 
concern. The Storm Prediction Center has placed most areas along 
and south of the Highway 20 corridor in a marginal risk for severe
weather on Tuesday. Heavy rainfall will also be a threat Tuesday,
possibly producing localized flash flooding and aggravating 
ongoing river flooding.

Although not quite reaching Heat advisory criteria, areas along
and south of the highway 34 corridor in southeast Iowa, northeast
Missouri, and west central Illinois may have heat index readings 
in the mid to upper 90s on Tuesday before storms hit the area and 
cool things down later in the afternoon.

There will be periodic chances for thunderstorms from Wednesday 
through Saturday. The predictability of severe weather for those 
mid to late week days remains low at this time. But additional 
rounds of moderate to heavy rainfall may lead to flooding problems.

Flooding is expected to continue on some area tributary rivers.
Rounds of heavy rainfall may also cause additional river sites to
rise later this week. Please see the latest Flood Statements and 
Flood Warnings for details.

 SPOTTER INFORMATION STATEMENT  

Spotter activation may be needed late this afternoon and tonight,
especially north of Interstate 80. 

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For PUTNAM County, IL
312 AM CDT Mon Jun 18 2018


HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING

EARLY THIS MORNING
Mostly clear. South wind 5 to 10 mph.

TODAY
Mostly sunny. Isolated showers and thunderstorms late in the afternoon. High in the lower 90s. Southwest wind 10 to 15 mph. Chance of rain 20 percent. Heat index readings to 103.

TONIGHT
Partly cloudy in the evening then becoming mostly cloudy. Scattered showers and thunderstorms. Low in the lower 70s. Southwest wind 5 to 10 mph shifting to the southeast after midnight. Chance of rain 40 percent. Heat index readings to 102 in the evening.

TUESDAY
Mostly cloudy. Scattered showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. High in the mid 80s. Southwest wind 5 to 10 mph. Chance of rain 60 percent. Heat index readings to 96.

TUESDAY NIGHT
Mostly cloudy with a 50 percent chance of showers and thunderstorms. Low in the upper 60s. North wind 5 to 10 mph.

WEDNESDAY
Mostly cloudy with a 40 percent chance of showers and thunderstorms. High around 80. Northeast wind 5 to 10 mph.

WEDNESDAY NIGHT
Mostly cloudy. A chance of showers after midnight. Low in the lower 60s. Chance of showers 30 percent.

THURSDAY
Mostly cloudy with a 50 percent chance of showers and thunderstorms. High in the upper 70s.

THURSDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Low in the mid 60s. Chance of rain 70 percent.

FRIDAY
Showers likely and a chance of thunderstorms. High in the upper 70s. Chance of rain 70 percent.

FRIDAY NIGHT
Mostly cloudy with a 50 percent chance of showers and thunderstorms. Low in the mid 60s.

SATURDAY
Partly sunny. High around 80.

SATURDAY NIGHT
Partly cloudy. Low in the mid 60s.

SUNDAY
Partly sunny with a 30 percent chance of showers and thunderstorms. High in the lower 80s.

12-48 Hr Surface, 12-48 Hr ETA 500mb/Sfc, TWC Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip
NGM 60 Hr Forecast Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford , Severe Weather Pot.-Day 1, Day 2


Medium & Long Range Outlook For Illinois
                             ILLINOIS                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   JUN 23-27 JUN 25-JUL 1    JUN       JUN-AUG                      
                 -----------  -----------  --------  ---------
   Temperature:     Normal        Above      Above     Normal                      
 Precipitation:      Above        Above     Normal      Above                      

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy
5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook
MRF 10-Day Forecast Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford

Almanac Information

Monday June 18, 2018 the 169th Day of Year

---------------------------------------------------
SUN
Declination 23.420000
Distance 0.999716 AU
Rise 06:31 EDT Set 21:30 EDT
Transit Meridian 14:00 EDT
Civil Twilight Begins 05:59 EDT Ends 22:02 EDT

Calculations made for central point in the state.
Time in ET -- and will vary due to location and
elevation -- Priddy


Historical Weather And Climate Facts For Today

/////////////////////////////
JUNE 18TH...HISTORIC WEATHER EVENTS
...1875...
A severe coastal storm (or possible hurricane) struck the Atlantic coast
from Cape Cod to Nova Scotia. Eastport ME reported wind gusts to 57 mph.
(David Ludlum)
...1958...
Hailstones up to four inches in diameter killed livestock as a storm passed
from Joliet to Belfry in Carbon County MT. (The Weather Channel)
...1970...
Wind and rain, and hail up to seven inches deep, caused more than five
million dollars damage at Oberlin KS. (The Weather Channel)


Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky