US Weekly Rainfall Departure		US Weekly Temperature Departure

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]

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Precision Agriculture Weather Forecast For JEFFERSON County

For Your Farm PointAgCast...Click here.

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Regional Hourly Observations For JEFFERSON County
Issued at 700 AM CDT SAT APR 20 2024

   SOUTHEAST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BURLINGTON     CLEAR     34  25  69 W7        30.30R WCI  28 TC   1   
6HR MIN TEMP:  34; 6HR MAX TEMP:  41;                                

FAIRFIELD *    CLEAR     34  21  60 W9        30.31S WCI  26 TC   1   
FORT MADISON * CLEAR     36  25  64 W12       30.31R WCI  27 TC   2   
KEOKUK *       CLEAR     34  25  69 W6        30.33R WCI  29 TC   1   
OSKALOOSA *    CLEAR     34  26  72 NW10      30.33R WCI  26 TC   1   
OTTUMWA        CLEAR     31  24  75 W7        30.33R WCI  24 TC  -1   
6HR MIN TEMP:  29; 6HR MAX TEMP:  35;                                

WASHINGTON *   CLEAR     32  25  74 W8        30.29S WCI  25 TC   0   

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

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Current Agricultural Weather Conditions in Iowa
Based on observations at 700am CDT, Saturday April 20, 2024

Across Iowa...temperatures are near 29 degrees west, near 33 degrees central, and near 33 degrees east. Current sky conditions are clear west, partly cloudy central, and clear east. In the west, relative humidity is near 78%, and the dew point is near 23 degrees. In the central part of the state, relative humidity is near 63%, and the dew point is near 22 degrees. In the east, relative humidity is near 69%, and the dew point is near 24 degrees. Winds are from the northwest at 10 mph west, where conditions are favorable for spraying. The wind chill is near 20 degrees west. Winds are from the northwest at 13 mph central, where conditions are not favorable for spraying due to strong winds. The wind chill is near 24 degrees central. Winds are from the west at 12 mph east, where conditions are favorable for spraying. The wind chill is near 24 degrees east. Based on current available observations, the highest temperature is 36 degrees at Spencer and Quad Cities. The lowest temperature is 27 degrees at Harlan.

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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

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Hazardous Weather Outlook For JEFFERSON County,IA

326 AM CDT Sat Apr 20 2024

 DAY ONE  TODAY AND TONIGHT

A Freeze Warning is in effect for parts of eastern Iowa and
northwest Illinois through 8 AM today. Temperatures are forecast 
to fall into the upper 20s to lower 30s. Please see the warning 
for details.

Temperatures are expected to fall into the upper 20s to lower 30s
again tonight. A frost and/or freeze is expected again tonight
across the area.

 DAYS TWO THROUGH SEVEN  SUNDAY THROUGH FRIDAY

Frost or freeze headlines may be needed Sunday night.

 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed tonight. 

NWS Severe Weather Map , Convective Outlook

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7-Day Forecast For JEFFERSON County, IA
645 AM CDT Sat Apr 20 2024

FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING

TODAY
Mostly sunny. Highs around 50. Northwest winds 10 to 15 mph with gusts up to 25 mph.

TONIGHT
Mostly cloudy in the evening, then clearing. Widespread frost after midnight. Lows around 30. Northwest winds 10 to 15 mph.

SUNDAY
Widespread frost in the morning. Sunny. Not as cool with highs around 60. Northwest winds 5 to 10 mph.

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

MONDAY
Sunny in the morning, then becoming partly sunny. Areas of frost in the morning. Highs in the upper 60s. Southwest winds 15 to 20 mph with gusts up to 30 mph.

MONDAY NIGHT
Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Not as cool with lows around 50. Chance of rain 60 percent.

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

TUESDAY NIGHT AND WEDNESDAY
Mostly clear. Lows in the upper 30s. Highs around 60.

WEDNESDAY NIGHT
Partly cloudy. Lows in the upper 30s.

THURSDAY
Mostly sunny. A chance of showers in the afternoon. Highs in the lower 60s. Chance of rain 30 percent.

THURSDAY NIGHT
Mostly cloudy. A chance of showers in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the upper 40s. Chance of rain 60 percent.

FRIDAY
Showers likely in the morning, then showers likely with a chance of thunderstorms in the afternoon. Breezy with highs in the upper 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

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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

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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

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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