Click on button above to view IA Watches/Warnings/Special Wx Statements.

Johnson County, IA Weather and Climate Synopsis

To access other UK Agricultural Weather Center Pages use the pull-down menu below.

(Click image to zoom) or Click Here

36 Hr. Forecast Map
All Radar images NOAA/UKAWC
Satellite images from NOAA

Weather Summary Hourly Observations Nowcast Precision Ag., Lawn & Garden Guidance
7 Day Forecast Medium & Long Range Outlook Almanac Historical Facts

US Weekly Rainfall Departure

US Weekly Temperature Departure
Also see:

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

Weather Summary for Iowa
National Weather Service Des Moines IA
603 PM CDT Sun Oct 21 2018

While it was another breezy day, it was much better than yesterday for
a few reasons. First, the gusts were not quite as strong, second the
winds were out of the west to southwest instead of the northwest, and
third the temperatures were warmer as a result of the southerly and
westerly winds. All of that added up to a relatively decent fall day
with clear skies and highs ranging from the upper 60s along the 
Missouri River to the low to mid 50s towards the Mississippi River. By
early this evening, winds had begun to ease up and should fall back 5
to 10 mph or less as the evening goes on. 

There is little notable weather to speak of in the coming days with no
precipitation chances until late Wednesday and into Thursday. Even
then, temperatures look to remain warm enough to keep it all rain
versus mixing in snow or ice. In the mean time, temperatures will
remain on the cool side of the fall spectrum for the most part.
Tomorrow continues to look like the warmest of the upcoming days, with
highs expected into the low to mid 60s across most of the state. After
that, a cold front and accompanying northerly to northwesterly winds
will predominantly drop highs back into the upper 40s to mid 50s the 
rest of the week. 

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

Precision Agriculture Weather Forecast For JOHNSON County

For Your Farm PointAgCast...Click here.

Regional Hourly Observations For JOHNSON County
Issued at 1200 AM CDT MON OCT 22 2018

DAVENPORT      FAIR      43  29  57 S8        30.07F                  
IOWA CITY      FAIR      40  32  73 SE3       30.05F                  
MT. PLEASANT * CLEAR     41  32  70 S7        30.07F                  
MUSCATINE *    FAIR      39  32  75 S5        30.07F                  
QUAD CITIES    FAIR      44  30  57 CALM      30.06F                  

Current Temperatures, Dewpoint, RH, Wind, Regional Obs, Surface 4-Panel

Current Agricultural Weather Conditions in Iowa
Based on observations at 1100pm CDT, Sunday October 21, 2018

Across Iowa...temperatures are near 42 degrees west, near 47 degrees central, and near 43 degrees east. Current sky conditions are clear west, clear central, and fair east. In the west, relative humidity is near 82%, and the dew point is near 37 degrees. In the central part of the state, relative humidity is near 68%, and the dew point is near 37 degrees. In the east, relative humidity is near 57%, and the dew point is near 29 degrees. Winds are calm west, where conditions are favorable for spraying. Winds are from the south at 6 mph central, where conditions are favorable for spraying. Winds are from the south at 7 mph east, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 50 degrees at Harlan. The lowest temperature is 36 degrees at Spencer.

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), Current Livestock Heat Stress Index (LSI), Current Wind Chill Map
Hazardous Weather Outlook For JOHNSON County,IA

319 AM CDT Sun Oct 21 2018


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


The probability for widespread hazardous weather is low.


Spotter activation will not be needed today or tonight.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For JOHNSON County, IA
1112 PM CDT Sun Oct 21 2018

Partly cloudy. Low in the mid 30s. Southwest wind 5 to 10 mph.

Sunny. High in the lower 60s. Northwest wind 5 to 10 mph.

Clear. Low in the mid 30s. Northwest wind 5 to 10 mph.

Cooler, sunny. High in the lower 50s. North wind 5 to 10 mph.

Clear. Low in the lower 30s. Northeast wind 5 to 10 mph.

Sunny. High in the lower 50s.

Mostly cloudy. Low in the upper 30s.

Mostly cloudy with a 30 percent chance of rain showers. High around 50.

Cloudy. Low in the upper 30s.

Mostly cloudy. High in the lower 50s.

Mostly cloudy with a 30 percent chance of rain showers. Low in the lower 40s. High in the mid 50s.

Mostly cloudy. Low around 40. High in the mid 50s.

12-48 Hr Surface Forecast Maps, TWC 4-Panel Surface Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip, Severe Weather Pot.-Day 1, Day 2

Medium & Long Range Outlook For Iowa
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
               OCT 27-OCT 31 OCT 29-NOV 4    OCT       OCT-DEC                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below                                            
 Precipitation:      Above        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
Almanac Information

Monday October 22, 2018 the 295th Day of Year

Declination -11.390000
Distance 0.999721 AU
Rise 08:35 EDT Set 19:21 EDT
Transit Meridian 13:58 EDT
Civil Twilight Begins 08:08 EDT Ends 19:48 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

The temperature soared to 104 degrees at San Diego CA. Southern California
was in the midst of a late October heat wave that year. Los Angeles had ten
consecutive days with afternoon highs reaching 100 degrees. (David Ludlum)
(The Weather Channel)
A guest on the top floor of a hotel in Seattle WA was seriously injured
while talking on the phone when lightning struck. Several persons are
killed each year when the electrical charge from a lightning bolt travels
via telephone wiring. (The Weather Channel)
Yakutat AK surpassed their previous all-time yearly precipitation total of
190 inches. Monthly records were set in June with 17 inches, in September
with 70 inches, and in October with more than 40 inches. (Sandra and TI
Richard Sanders - 1987)
Twenty-two cities in the eastern U.S., most of them in the southeast
states, reported record low temperatures for the date. Morning lows of 30
degrees at Athens GA, 28 degrees at Birmingham AL, and 23 degrees at Pinson
AL, were the coldest of record for so early in the season. (The National
Weather Summary)
Showers produced heavy rain in southern California, with amounts ranging up
to five inches at Blue Jay. Flash flooding resulted in two deaths, ten
injuries, and more than a million dollars damage. (The National Weather
Summary) (Storm Data)
A "nor'easter" swept across the coast of New England. Winds gusted to 75
mph, and large waves and high tides caused extensive shoreline flooding. A
heavy wet snow blanketed much of eastern New York State, with a foot of
snow reported in Lewis County. (The National Weather Summary) (Storm Data)
A storm system moving out of the Gulf of Alaska brought rain to the
Northern and Central Pacific Coast Region, with snow in some of the
mountains of Oregon, and wind gusts to 60 mph along the Oregon coast. Six
cities in Florida reported record low temp-eratures for the date, including
Tallahassee with a reading of 34 degrees. (The National Weather Summary)
(Storm Data)

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