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


Clayton 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
327 AM CDT Sat Apr 20 2024

Today: 

Quiet weather continues across Iowa this morning as high pressure
remains over the region. A few weak waves within the larger scale
pattern are noticeable on radar with light precipitation across
Kansas/Nebraska and in Minnesota. With this, some cloud cover has
pushed into portions of northern and western Iowa, while the rest of
the state sees clear skies. Temperatures continue to decrease with
values in the upper 20s through the 30s, with a Freeze Warning
currently in effect. Winds out of the northwest remain relatively 
light across the state around 5-10 mph.

Temperatures are expected to fall a bit more yet over the next few
hours into the upper 20s to low 30s statewide, before increasing
into the upper 40s to low 50s by this afternoon. Expecting dry
conditions to persist, with mostly cloudy skies and slightly breezy
northwest winds.

Tonight and beyond: 

Decreasing clouds and weakening winds will allow for a rather calm
evening and overnight, though temperatures falling around to just
below freezing will likely lead to additional freeze headlines. 
Therefore, tender plants would need to be covered or brought indoors.

Sunday will come with warmer conditions as highs are expected to reach
into the upper 50s to low 60s, with sunny skies and generally light
winds. Into the start of the work week, a system passing through the
region will lead to increasing chances for showers and possibly storms
Monday afternoon/evening and continue into Tuesday. This is expected
to come with gusty winds out of the southwest with gusts upwards of
30-35 mph. Dry weather looks to return briefly Wednesday before the
next chance of precipitation arrives late Wednesday through 
Thursday/Friday. Highs are expected to increase, with values generally
in the 60s to low 70s and lows in the 30s to 40s. 

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

Precision Agriculture Weather Forecast For CLAYTON County


For Your Farm PointAgCast...Click here.

Regional Hourly Observations For CLAYTON County
Issued at 900 AM CDT SAT APR 20 2024

   NORTHEAST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CEDAR RAPIDS   CLOUDY    36  25  64 NW15      30.30R WCI  27 TC   2   
CHARLES CITY * CLOUDY    34  25  69 NW23      30.27R WCI  22 TC   1   
CLINTON *      SUNNY     38  27  64 NW18      30.29R WCI  28 TC   3   
DECORAH *      CLOUDY    34  23  64 VRB7G14   30.23R WCI  28 TC   1   
DUBUQUE        MOSUNNY   37  25  61 NW18G32   30.25R WCI  27 TC   3   
MONTICELLO *   MOSUNNY   37  21  52 NW22G29   30.26S WCI  27 TC   3   
OELWEIN *      CLOUDY    34  27  75 NW13      30.26S WCI  25 TC   1   
WATERLOO       CLOUDY    37  24  59 NW12      30.28R WCI  29 TC   3   

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


Current Agricultural Weather Conditions in Iowa
Based on observations at 800am CDT, Saturday April 20, 2024

Across Iowa...temperatures are near 33 degrees west, near 37 degrees central, and near 35 degrees east. Current sky conditions are sunny west, mostly sunny central, and sunny east. In the west, relative humidity is near 72%, and the dew point is near 25 degrees. In the central part of the state, relative humidity is near 54%, and the dew point is near 22 degrees. In the east, relative humidity is near 69%, and the dew point is near 26 degrees. Winds are from the northwest at 10 mph west, where conditions are favorable for spraying. The wind chill is near 25 degrees west. Winds are from the northwest at 16 mph central, where conditions are not favorable for spraying due to strong winds. The wind chill is near 28 degrees central. Winds are from the west at 13 mph east, where conditions are not favorable for spraying due to strong winds. The wind chill is near 26 degrees east. Based on current available observations, the highest temperature is 38 degrees at Quad Cities. The lowest temperature is 32 degrees at Storm Lake.


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 CLAYTON County,IA

418 AM CDT Sat Apr 20 2024

 DAY ONE  Today and Tonight

Freezing to near freezing temperatures tonight. Damage to fruit 
blossoms and other sensitive vegetation is likely if protective
measures are not taken.

 DAYS TWO THROUGH SEVEN  Sunday through Friday

Where lows are forecast in the lower to mid 30s Monday morning, 
frost could occur.  Near freezing or freezing temperatures could 
occur Wednesday morning. Precautions should be taken to protect 
cold sensitive plants. 

Thunderstorms could occur Friday. It is too early to determine the
severe weather potential.

 SPOTTER INFORMATION STATEMENT  

No action needed.

 EMERGENCY MANAGEMENT COORDINATION  

No webinar is scheduled.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For CLAYTON County, IA
758 AM CDT Sat Apr 20 2024

TODAY
Partly sunny this morning, then mostly cloudy with scattered sprinkles this afternoon. Highs in the mid 40s. Northwest winds 10 to 15 mph.

TONIGHT
Partly cloudy with scattered sprinkles in the evening, then mostly clear after midnight. Widespread frost after midnight. Cold with lows around 30. West winds 10 to 15 mph.

SUNDAY
Widespread frost in the morning. Sunny, warmer with highs in the upper 50s. Northwest winds 10 to 15 mph.

SUNDAY NIGHT
Clear. Areas of frost after midnight. Lows in the mid 30s. West winds 5 to 10 mph.

MONDAY
Breezy. Mostly sunny in the morning then becoming mostly cloudy. Highs in the mid 60s. Southwest winds 15 to 25 mph. Gusts up to 35 mph in the afternoon.

MONDAY NIGHT
Breezy, warmer, showers. Lows in the upper 40s. Chance of rain 80 percent.

TUESDAY
Partly sunny with a 50 percent chance of showers. Highs in the lower 60s.

TUESDAY NIGHT THROUGH THURSDAY
Partly cloudy. Lows in the mid 30s. Highs in the upper 50s.

THURSDAY NIGHT
Rain showers likely. Lows in the mid 40s. Chance of rain 60 percent.

FRIDAY
Breezy. Rain showers likely. Highs in the lower 60s. Chance of rain 70 percent.

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
                                 IOWA                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   APR 25-29 APR 27-MAY 3    JUN       JUN-AUG                      
                 -----------  -----------  --------  ---------
   Temperature:                                                                    
 Precipitation:                                                                    

....  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

Saturday April 20, 2024 the 111th Day of Year

---------------------------------------------------
SUN
Declination 12.050000
Distance 0.999719 AU
Rise 07:24 EDT Set 21:02 EDT
Transit Meridian 14:12 EDT
Civil Twilight Begins 06:56 EDT Ends 21:30 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

APRIL 20TH
HISTORIC WEATHER EVENTS
...1901...
A spring storm produced unusally heavy snow in northeast Ohio. Warren
received 35.5 inches in thirty-six hours, and 28 inches fell at Green Hill.
Akron OH established April records of 15.6 inches in 24 hours, and 26.6
inches for the month. Pittsburgh PA established April records of 12.7
inches in 24 hours, and 13.5 inches for the month. (David Ludlum) (The
Weather Channel)
...1920...
Tornadoes in Mississippi and Alabama killed 219 persons. (David Ludlum)
...2002...
An unseasonably warm and moist air mass had settled across eastern Kentucky 
leading to record breaking temperatures at the Jackson Weather Office and the 
London Corbin Airport between the 16th and 21st of April. Jackson saw several 
days in a row with record high temperatures as well as maximum low records. On 
the 19th the mercury soared to a record high of 89 degrees at Jackson and a 
record tying 87 degrees at London. The low temperature at Jackson was a balmy 69 
degrees good enough for a daily as well as a monthly maximum low temperature 
record. (NWS Jackson)

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