kywx
Kentucky AI Weather Engine

Kentucky AI Forecasting Beta

Fri, Jun 5
Sun, Jun 7
Forecast For

Saturday, June 6

Updated Jun 6, 7:14 AM EDT
Confidence
70%

Warm Summer Weekend with Isolated Evening Sprinkles

A warm and generally dry Saturday is expected across Kentucky, with temperatures climbing into the mid-80s. While most of the state will enjoy plenty of sunshine, a weak passing disturbance will bring increased cloud cover and a slight risk for light, non-accumulating sprinkles to western and northern regions late in the day.

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

High confidence in temperatures and dry conditions for 90% of the state. Lower confidence regarding whether the light evening sprinkles in the far west/north will actually reach the ground.

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

NUISANCE
Paducah, Murray, Mayfield
Increasing Clouds with Evening Sprinkles
Cloudy
86°/ 68°

Northwest Pennyrile

Owensboro, Henderson, Morganfield
Warm and Breezy with Afternoon Clouds
Sunny
86°/ 67°

Southwest Pennyrile

Hopkinsville, Madisonville, Princeton
Dry and Sunny for Hopkinsville
Sunny
84°/ 64°

Barren River

Bowling Green, Glasgow, Franklin
Bright Skies in Bowling Green
Sunny
83°/ 63°

Louisville Metro

Louisville, La Grange, Shepherdsville
Hot and Sunny in the City
Sunny
87°/ 69°

Lincoln Trail

Elizabethtown, Bardstown, Leitchfield
Sunny and Pleasant Across the Trail
Sunny
82°/ 65°

Lake Cumberland

Somerset, Columbia, Monticello
Perfect Lake Weather
Sunny
83°/ 62°

Northern Kentucky

NUISANCE
Covington, Florence, Independence
Breezy with Late Evening Sprinkles
Cloudy
85°/ 67°

Inner Bluegrass

Lexington, Georgetown, Winchester
Warm and Gusty in Lexington
Sunny
83°/ 65°

Bluegrass Foothills

Richmond, Danville, Berea
Sunny and Mild Foothills
Sunny
83°/ 64°

Northeast Kentucky

Ashland, Morehead, Grayson
Hot Spot of the State
Sunny
88°/ 65°

Southeast Kentucky

Hazard, Pikeville, Harlan
Comfortable Mountain Summer Day
Sunny
85°/ 59°

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

If low-level moisture advection is stronger than currently modeled (as hinted by the Euro), a few hundredths of an inch of rain could dampen pavements in the Purchase and Northern Kentucky regions by mid-afternoon.

💨

The 'Bust' Scenario

If the dry air identified by the NAM wins out, the state remains completely sunny and bone-dry, with evening showers evaporating entirely before reaching the ground.

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.

Mixing vs. Stagnation

The NAM and GFS suggest gusty afternoon winds due to momentum transfer from an 850mb jet, while the Euro keeps surface winds very light.

NAM
VS
GFS
VS
EURO
Why NAM Wins

The June sun angle and adiabatic lapse rates will favor deep boundary layer mixing, making the gustier NAM/GFS solution more plausible than the stagnant Euro.

Affected Regions
BLUEGRASS CORELOUISVILLE METROLINCOLN TRAIL

The Virga Verdict

The GFS and Euro show high probabilities (80%) of precipitation in the West/North, while the NAM remains completely dry. The conflict centers on a deep layer of dry air in the sub-cloud layer.

NAM
VS
GFS
VS
EURO
Why NAM Wins

The NAM thermal profiles show massive dew point depressions (15-20F) at the surface. Even with the shortwave energy provided by the GFS, the evaporation potential is too high for measurable rainfall to verify.

Affected Regions
PURCHASENORTHERN KYNORTHWEST PENNYRILE

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

Standard adiabatic lapse rate in the boundary layer with no notable inversions. The column is well-mixed up to 700mb.

Thermal Boundary

The freezing line is located well into Central Canada; Kentucky is fully entrenched in a warm summer air mass.

Diurnal Trend

Purely diurnal temperature curve with peak heating between 20Z and 23Z. Radiational cooling will be efficient after sunset in eastern valleys.

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 frontal passage. Wind directions remain generally southerly to southwesterly with no distinct shift.

Jet Stream Support

Kentucky sits in the right entrance region of a northern stream jet streak, providing weak synoptic lift.

Energy Status

A weak shortwave trough is pivoting through the Ohio Valley, but lacks the moisture support to capitalize on the energy.

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

The atmospheric column is undersaturated. Large dew point depressions at the surface create a significant virga risk for any incoming echoes.

Precipitation Character

Primarily stratiform sprinkles or light drizzle if any moisture reaches the surface.

Flooding Context

None. Ground is dry and precipitation amounts will be trace at most.

Winter Physics

Accumulation & Layers

Specific physical factors affecting winter weather, including the vertical melt/freeze profile and snow quality.

Layer Analysis

Not applicable.

Crystal Habit

Not applicable.

Road Impact

Not applicable.

Severe Risk

Instability & Shear

Atmospheric ingredients required for severe thunderstorms, including available fuel (CAPE) and storm organization (shear).

Shear Analysis

Deep layer shear is present (30-40kts) but irrelevant due to the total lack of instability.

Instability Context

CAPE is 0 J/kg across the state; convection is inhibited by a strong mid-level cap.

Primary Threat

None.

Celestial Almanac

Moon Phase

Waning Gibbous

68% Illumination
Moonrise
1:16 AM
Moonset
12:11 PM
Purchase Area
Sunrise
6:36 AM
Sunset
9:12 PM
Civil Dawn
6:05 AM
Civil Dusk
9:43 PM
Northwest Pennyrile
Sunrise
6:28 AM
Sunset
9:08 PM
Civil Dawn
5:57 AM
Civil Dusk
9:39 PM
Southwest Pennyrile
Sunrise
6:32 AM
Sunset
9:07 PM
Civil Dawn
6:01 AM
Civil Dusk
9:38 PM
Barren River
Sunrise
6:28 AM
Sunset
9:04 PM
Civil Dawn
5:57 AM
Civil Dusk
9:34 PM
Louisville Metro
Sunrise
6:21 AM
Sunset
9:04 PM
Civil Dawn
5:50 AM
Civil Dusk
9:36 PM
Lincoln Trail
Sunrise
6:23 AM
Sunset
9:03 PM
Civil Dawn
5:52 AM
Civil Dusk
9:34 PM
Lake Cumberland
Sunrise
6:20 AM
Sunset
8:56 PM
Civil Dawn
5:49 AM
Civil Dusk
9:27 PM
Northern Kentucky
Sunrise
6:13 AM
Sunset
9:02 PM
Civil Dawn
5:42 AM
Civil Dusk
9:34 PM
Inner Bluegrass
Sunrise
6:16 AM
Sunset
8:59 PM
Civil Dawn
5:45 AM
Civil Dusk
9:30 PM
Bluegrass Foothills
Sunrise
6:17 AM
Sunset
8:57 PM
Civil Dawn
5:46 AM
Civil Dusk
9:28 PM
Northeast Kentucky
Sunrise
6:08 AM
Sunset
8:53 PM
Civil Dawn
5:36 AM
Civil Dusk
9:24 PM
Southeast Kentucky
Sunrise
6:14 AM
Sunset
8:51 PM
Civil Dawn
5:43 AM
Civil Dusk
9:22 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.