kywx
Kentucky AI Weather Engine

Kentucky AI Forecasting Beta

Tue, Apr 21
Thu, Apr 23
Forecast For

Wednesday, April 22

Updated Apr 22, 6:59 AM EDT
Confidence
85%

How Did We Do?

Comparing our AI forecast to actual observations from Wednesday, April 22, 2026.

Temperature
±3.0°F
Average Error
Precipitation
±1.30"
Average Error
Wind Speed
±5.4mph
Average error

Regional Assessments

Purchase Area

Paducah, Murray, Mayfield
Temperature
Forecast
81° / 57°
Actual
80° / 51°
Error: 1°F high, 6°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
12 / 30 mph
Actual
7 / 28 mph
Mesonet Stations HCKM, BAND

Northwest Pennyrile

Owensboro, Henderson, Morganfield
Temperature
Forecast
79° / 58°
Actual
80° / 54°
Error: -1°F high, 4°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
13 / 33 mph
Actual
8 / 29 mph
Mesonet Stations FRNY, RPTN, GRHM, DIXO

Southwest Pennyrile

Hopkinsville, Madisonville, Princeton
Temperature
Forecast
81° / 55°
Actual
80° / 49°
Error: 1°F high, 6°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
11 / 25 mph
Actual
8 / 31 mph
Mesonet Stations PRNC, PGHL, ERLN, CADZ, CCTY

Barren River

Bowling Green, Glasgow, Franklin
Temperature
Forecast
79° / 54°
Actual
82° / 52°
Error: -3°F high, 2°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
12 / 32 mph
Actual
7 / 26 mph
Mesonet Stations FARM, WDBY, EWPK

Louisville Metro

Louisville, La Grange, Shepherdsville
Temperature
Forecast
78° / 60°
Actual
78° / 60°
Error: 0°F high, 0°F low
Precipitation
Forecast
0.01"
Actual
0.08"
✓ Within forecast range
Wind Speed
Forecast
14 / 38 mph
Actual
10 / 27 mph
Mesonet Stations LGRN

Lincoln Trail

Elizabethtown, Bardstown, Leitchfield
Temperature
Forecast
77° / 56°
Actual
81° / 54°
Error: -4°F high, 2°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
13 / 38 mph
Actual
7 / 29 mph
Mesonet Stations CRMT, BLRK, CCLA, BRND, HARD

Lake Cumberland

Somerset, Columbia, Monticello
Temperature
Forecast
77° / 55°
Actual
81° / 37°
Error: -4°F high, 18°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
10 / 25 mph
Actual
5 / 24 mph
Mesonet Stations PCWN, CMBA, GRDR, WOOD, GRBG

Northern Kentucky

Covington, Florence, Independence
Temperature
Forecast
75° / 58°
Actual
78° / 56°
Error: -3°F high, 2°F low
Precipitation
Forecast
0.15"
Actual
1.51"
±1.36" off
Wind Speed
Forecast
13 / 36 mph
Actual
5 / 23 mph
Mesonet Stations HHTS, HUEY

Inner Bluegrass

Lexington, Georgetown, Winchester
Temperature
Forecast
75° / 57°
Actual
78° / 32°
Error: -3°F high, 25°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
15 / 40 mph
Actual
9 / 27 mph
Mesonet Stations LXGN, SPIN

Bluegrass Foothills

Richmond, Danville, Berea
Temperature
Forecast
76° / 57°
Actual
80° / 57°
Error: -4°F high, 0°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
14 / 35 mph
Actual
7 / 27 mph
Mesonet Stations LGNT

Northeast Kentucky

Ashland, Morehead, Grayson
Temperature
Forecast
73° / 57°
Actual
78° / 49°
Error: -5°F high, 8°F low
Precipitation
Forecast
0.25"
Actual
14.41"
±14.16" off
Wind Speed
Forecast
10 / 25 mph
Actual
5 / 24 mph
Mesonet Stations MRHD, CHTR

Southeast Kentucky

Hazard, Pikeville, Harlan
Temperature
Forecast
75° / 58°
Actual
82° / 32°
Error: -7°F high, 26°F low
Precipitation
Forecast
0"
Actual
0"
✓ Within forecast range
Wind Speed
Forecast
10 / 30 mph
Actual
4 / 27 mph
Mesonet Stations BMBL, QKSD, BNVL, VEST, RFVC, RFSM, PBDY

Early Summer Warmth Arrives; Morning Showers North

A powerful ridge of high pressure will bring unseasonably warm temperatures and sunshine to the majority of Kentucky for April 22. A weakening shortwave trough will graze the northern and northeastern counties, providing a period of light morning rain and cloud cover before clearing by mid-afternoon. Breezy conditions are expected statewide during the morning hours.

Why is this happening?
Technical explanation of the atmospheric setup
Confidence Assessment

Very high confidence in unseasonably warm temperatures. High confidence in the dry forecast for Southern and Western KY. Moderate confidence in the southern extent and rainfall totals for the northern shower activity.

Get Personalized Forecasts

Choose which region in Kentucky you're interested in and we'll always show you that one first. You can change your selected region by clicking the "Star" icon on any regional forecast.

Purchase Area

Paducah, Murray, Mayfield
Sunny and Summer-Like
Sunny
81°/ 57°

Northwest Pennyrile

Owensboro, Henderson, Morganfield
Warm and Bright in Owensboro
Sunny
79°/ 58°

Southwest Pennyrile

Hopkinsville, Madisonville, Princeton
Quiet and Very Mild
Sunny
81°/ 55°

Barren River

Bowling Green, Glasgow, Franklin
Sunny and Warm in the Bowl
Sunny
79°/ 54°

Louisville Metro

Louisville, La Grange, Shepherdsville
Breezy with Morning Sprinkles
Cloudy
78°/ 60°

Lincoln Trail

Elizabethtown, Bardstown, Leitchfield
Windy Start, Sunny Finish
Sunny
77°/ 56°

Lake Cumberland

Somerset, Columbia, Monticello
Perfect Spring Lake Weather
Sunny
77°/ 55°

Northern Kentucky

NUISANCE
Covington, Florence, Independence
Morning Rain; Clearing Later
Rain
75°/ 58°

Inner Bluegrass

Lexington, Georgetown, Winchester
Windy with Passing Clouds
Cloudy
75°/ 57°

Bluegrass Foothills

Richmond, Danville, Berea
Breezy and Brightening
Cloudy
76°/ 57°

Northeast Kentucky

NUISANCE
Ashland, Morehead, Grayson
Showers Persist Through Midday
Rain
73°/ 57°

Southeast Kentucky

Hazard, Pikeville, Harlan
Warm Mountain Sunshine
Sunny
75°/ 58°

Possible Outcomes

Weather forecasting involves uncertainty. Below are two scenarios representing the range of possible outcomes: the "Boom" scenario shows the worst-case/highest-impact result if conditions align unfavorably, while the "Bust" scenario shows the best-case/lowest-impact result if the forecast doesn't materialize as expected.

💥

The 'Boom' Scenario

The 'Boom' Scenario: If the northern shortwave tracks slightly further south and the moisture plume stalls, Northeast Kentucky could see over 0.75 inches of rain, with light showers extending as far south as the Cumberland Parkway.

💨

The 'Bust' Scenario

The 'Bust' Scenario: If low-level dry air (dewpoint depressions >20F) is more persistent, the light rain in the north will largely evaporate as virga, resulting in little more than sprinkles and overcast skies for the I-64 corridor.

Model Disagreements

When models disagree, a call must be made to determine the most likely outcome. This decision is based on a combination of factors including model performance, historical data, and the models general accounting of each climatic region of Kentucky.

The Morning Momentum Mix

Models are split on how much of the 40kt Low-Level Jet (LLJ) will mix to the surface during the morning hours.

NAM
VS
GFS
VS
EURO
Why NAM Wins

The NAM tends to handle boundary layer mixing and local terrain-induced gusts (like the Muldraugh Escarpment) with higher precision in the short-term window.

Affected Regions
LOUISVILLE METROLINCOLN TRAILBLUEGRASS CORE

The Northeast QPF Disconnect

A significant disagreement exists regarding rainfall depth in Northeast Kentucky. The NAM is an aggressive outlier, suggesting nearly three-quarters of an inch of rain, while the GFS, Euro, and GEM suggest a much lighter nuisance event.

NAM
VS
GFS
VS
EURO
Why EURO Wins

The NAM's frontogenetical forcing appears overdone given the lack of deep-layer moisture support in the other global models. The Euro provides a more realistic compromise between the bone-dry GFS and the wet NAM.

Affected Regions
NORTHEAST KYNORTHERN KY

Technical Analysis

This section provides a deep, physics-based explanation of the weather. Our AI system analyzed multiple atmospheric layers and variables from all available models to synthesize this technical overview.

Below you'll find detailed breakdowns of the atmospheric dynamics that are driving today's forecast, including thermodynamics, kinematics, and hydrology.

Thermodynamics

Stability & Temperatures

How temperature changes with altitude. This determines whether precipitation falls as rain, snow, sleet, or freezing rain based on the vertical temperature profile.

Thermal Profile Overview

The vertical column features a warm-sector profile with a standard adiabatic lapse rate. A shallow morning inversion in the south will break by 14z, while the north stays more stable due to cloud cover.

Thermal Boundary

The effective freezing line and 850mb 0C isotherm are located well north of the Ohio River in Central Ohio and Indiana.

Diurnal Trend

The temperature curve will be strongly diurnal for most, though the Northeast will see a suppressed morning curve due to rain-cooling and persistent cloud cover.

Kinematics

Wind & Energy

Wind patterns and atmospheric energy. Frontal passages, jet stream positioning, and vorticity tell us where and when lift will generate precipitation.

Frontal Passage

No significant surface front; a weak trough axis passes the northern tier by 18z, marked by a shift from SW to W winds.

Jet Stream Support

The region is on the anticyclonic side of a 100kt jet streak over Michigan, providing upper-level divergence for the northern tier.

Energy Status

A compact shortwave trough is pivoting through the Great Lakes, providing the necessary vorticity (1.1 x 10^-4 s^-1) for the morning rain.

Hydrology

Moisture & Precipitation

Moisture content and precipitation character. This reveals whether the atmosphere is saturated enough to produce precipitation, and what type to expect (steady vs. bursts).

Saturation Status

Deep saturation is confined to the 925-700mb layer in Northern/Northeast KY; elsewhere, the column is extremely dry with high virga risk.

Precipitation Character

Precipitation will be strictly stratiform (light rain and drizzle) with no convective elements due to 0 CAPE.

Flooding Context

Ground conditions are stable and soil is not saturated; no flooding risk from the expected light rain totals.

Celestial Almanac

Moon Phase

Waxing Crescent

31% Illumination
Moonrise
11:12 AM
Moonset
1:58 AM
Purchase Area
Sunrise
7:11 AM
Sunset
8:36 PM
Civil Dawn
6:44 AM
Civil Dusk
9:03 PM
Northwest Pennyrile
Sunrise
7:05 AM
Sunset
8:31 PM
Civil Dawn
6:37 AM
Civil Dusk
8:58 PM
Southwest Pennyrile
Sunrise
7:07 AM
Sunset
8:31 PM
Civil Dawn
6:40 AM
Civil Dusk
8:58 PM
Barren River
Sunrise
7:03 AM
Sunset
8:27 PM
Civil Dawn
6:36 AM
Civil Dusk
8:54 PM
Louisville Metro
Sunrise
6:58 AM
Sunset
8:26 PM
Civil Dawn
6:31 AM
Civil Dusk
8:54 PM
Lincoln Trail
Sunrise
7:00 AM
Sunset
8:25 PM
Civil Dawn
6:32 AM
Civil Dusk
8:53 PM
Lake Cumberland
Sunrise
6:55 AM
Sunset
8:20 PM
Civil Dawn
6:28 AM
Civil Dusk
8:47 PM
Northern Kentucky
Sunrise
6:52 AM
Sunset
8:22 PM
Civil Dawn
6:24 AM
Civil Dusk
8:50 PM
Inner Bluegrass
Sunrise
6:54 AM
Sunset
8:21 PM
Civil Dawn
6:26 AM
Civil Dusk
8:48 PM
Bluegrass Foothills
Sunrise
6:53 AM
Sunset
8:19 PM
Civil Dawn
6:26 AM
Civil Dusk
8:47 PM
Northeast Kentucky
Sunrise
6:46 AM
Sunset
8:14 PM
Civil Dawn
6:18 AM
Civil Dusk
8:42 PM
Southeast Kentucky
Sunrise
6:50 AM
Sunset
8:14 PM
Civil Dawn
6:22 AM
Civil Dusk
8:42 PM

Dive Deeper Into the Models

This forecast is a synthesis of raw data from the NAM, GFS, ECMWF, and GEM models. These models provide detailed atmospheric analyses including 500mb vorticity, precipitation rates, and more. You can take a look at the raw model data by clicking the links below.