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


Linn 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
330 AM CDT Fri Apr 19 2024

Today: 

Quiet conditions this morning as a large area of high pressure 
descends across the region. Winds have been generally on the light 
side, but vary at least a bit with winds out of the west/southwest 
over most of the state, while southern Iowa sees northwest winds. 
Skies were largely clear, outside of some clouds passing across the
far south. Radar returns this morning are showing rain, though this
does not look to be reaching the ground, and is not expected to do so.
Frost/Freeze headlines remain across the state as temperatures sit in
the low 30s north and in to the upper 30s south, though as warming 
occurs later this morning, these headlines will drop off for the day.

Generally quiet conditions are expected today, with partly to mostly
sunny skies and temperatures warming into the upper 40s to low 50s
north and in the upper 50s across the rest of the state. Winds are
expected to turn more northwesterly across Iowa as a front passes
though, turning quite breezy, especially over northern Iowa later this
morning through the afternoon with gusts upwards of 35-40 mph. 

Tonight and beyond: 

Winds relax into the evening, though temperatures falling near to 
just below freezing across the state will likely allow for additional 
frost/freeze headlines into Saturday morning. 

Continued dry weather is expected through the weekend, with
temperatures gradually warming into the upper 50s to low 60s by
Sunday. Before that though, can expect one more chilly night with
more expected frost/freezing conditions Saturday night into Sunday
morning. Expect slightly breezy conditions this weekend with partly
cloudy skies Saturday and clearing skies Sunday. Changes arrive into
the start of the work week as the chance for showers and storms
returns, along with continued warming through the 60s.

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

Precision Agriculture Weather Forecast For LINN County


For Your Farm PointAgCast...Click here.

Regional Hourly Observations For LINN County
Issued at 300 AM CDT SAT APR 20 2024

   NORTHEAST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CEDAR RAPIDS   CLEAR     27  23  85 W8        30.24S WCI  19 TC  -3   
CHARLES CITY * MOCLDY    32  25  74 W12       30.21S WCI  23 TC   0   
CLINTON *      CLEAR     31  28  89 W9        30.24R WCI  23 TC  -1   
DECORAH *      CLOUDY    32  23  69 VRB5G12   30.17S WCI  27 TC   0   
DUBUQUE        CLEAR     32  22  66 W10       30.20S WCI  24 TC   0   
MONTICELLO *   CLEAR     32  25  74 W9        30.21S WCI  24 TC   0   
OELWEIN *      CLEAR     32  23  69 W12       30.22S WCI  23 TC   0   
WATERLOO       PTCLDY    34  20  56 W10       30.24S WCI  26 TC   1   

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


Current Agricultural Weather Conditions in Iowa
Based on observations at 300am CDT, Saturday April 20, 2024

Across Iowa...temperatures are near 32 degrees west, near 36 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 66%, and the dew point is near 22 degrees. In the central part of the state, relative humidity is near 59%, and the dew point is near 23 degrees. In the east, relative humidity is near 75%, and the dew point is near 26 degrees. Winds are from the west at 7 mph west, where conditions are favorable for spraying. The wind chill is near 26 degrees west. Winds are from the northwest at 9 mph central, where conditions are favorable for spraying. The wind chill is near 29 degrees central. Winds are from the west at 10 mph east, where conditions are favorable for spraying. The wind chill is near 25 degrees east. Based on current available observations, the highest temperature is 38 degrees at Quad Cities. The lowest temperature is 27 degrees at Cedar Rapids.


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 LINN County,IA

905 PM CDT Fri Apr 19 2024

 DAY ONE  TONIGHT

A Freeze Warning is in effect for parts of eastern Iowa and
northwest Illinois from midnight tonight through 8 AM Saturday.
Temperatures are forecast to fall into the upper 20s to lower 30s,
coldest northwest of Cedar Rapids. Please see the warning for 
details.

 DAYS TWO THROUGH SEVEN  SATURDAY THROUGH THURSDAY

Frost or freeze headlines may be needed Saturday night and again
on Sunday night.

 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed tonight. 

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For LINN County, IA
259 AM CDT Sat Apr 20 2024


FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT SATURDAY

TODAY
Sunny, then becoming mostly sunny this morning, then becoming partly sunny. A chance of sprinkles this afternoon. Highs in the upper 40s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

TONIGHT
Partly cloudy with a chance of sprinkles in the evening, then clear after midnight. Widespread frost after midnight. Lows in the upper 20s. Northwest winds 10 to 15 mph.

SUNDAY
Widespread frost in the morning. Sunny. Not as cool with highs around 60. 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
Areas of frost in the morning. Mostly sunny. Breezy with highs in the mid 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph, increasing to 15 to 25 mph with gusts up to 35 mph in the afternoon.

MONDAY NIGHT
Showers likely, mainly in the evening. Not as cool with lows in the upper 40s. Chance of rain 70 percent.

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

TUESDAY NIGHT AND WEDNESDAY
Mostly clear. Lows in the mid 30s. Highs in the upper 50s.

WEDNESDAY NIGHT AND THURSDAY
Partly cloudy. Lows in the upper 30s. Highs in the lower 60s.

THURSDAY NIGHT AND FRIDAY
Showers likely. Breezy. Lows in the mid 40s. 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