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Shaded-relief atlas plate of Louisville, New York: rivers, roads, the city limits and where the water drains.
NEW YORK · ST. LAWRENCE COUNTY

Louisville

2,982 people, 280 ft above sea level in St. Lawrence County.

280 ftElevation, city center
2,982People, 2024 estimate
49 sq miLand area
Sunny 58°
Sunny now Dew point 51° · W 3 mph · high 65°
City of Louisville River Interstate 2 miles
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The Louisville plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Louisville

NWS forecast and National Blend of Models · updated 2:00 PM EDT
RIGHT NOW Massena International-Richards Field (KMSS) · 2:53 PM
Sunny
58° Sunny Feels like 58° · high of 65° near 4 PM
WindW 3 mphno gusts
Humidity78%rising to 100% by morning
Pressure30.07 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 51° · Dry62° by Thursday: more humid
DryComfortableStickyMuggyOppressive
NEXT RAIN
Rain
Thursday, about 9 PMin about 54 hours · 57% chance · rain
LIKELY AMOUNT0–0.3 inmost likely 0.09; 1 in 10 over 1
LAST RAINSept. 130.14 in · 16 dry days
ALERTS & OUTLOOKS
No watches or warnings for St. Lawrence County
NWS Burlington and the Storm Prediction Center · checked 3:20 PM
SUN & MOON
↑ 6:55 AM6:45 PM ↓
11 h 50 m of daylight, 3 minutes less than yesterday
Waning gibbous, 89% lit. The Harvest Moon was full Saturday.
AIR & POLLEN
15
GOODAir quality index · ozone
Tomorrow: 30, good. No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
TUESDAY, SEPT. 29
WEDNESDAY, SEPT. 30
THURSDAY, OCT. 1
FRIDAY, OCT. 2
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
mostly cloudy day
mostly clear night
mostly clear night
partly cloudy night
mostly cloudy night
mostly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
mostly cloudy night
mostly cloudy night
mostly cloudy night
partly cloudy day
partly cloudy day
mostly cloudy day
mostly cloudy day
mostly cloudy night
rain
rain
rain
rain
rain
rain
TEMPERATURE °F
64°
47°
72°
61°
72°
61°
CHANCE OF RAIN
57% · 0.36 in Friday morning 50%
WIND, MPH
0
0
0
0
0
0
3
6
6
7
6
7
8
9
11
13
14
12
10
8
6
5
5
7
HOW IT FEELS · DEW POINT
Dry: dew points 47 to 54° ↑ Humid air returns More humid: 60° by Friday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 65° / 43°
TUE Sept. 29 Partly cloudy Partly cloudy
65° 44°
0% rain — N 0 A
WED Sept. 30 Mostly cloudy; warmer Mostly cloudy; warmer
73° 58°
10% rain — SW 5 B
THU Oct. 1 Chance of showers Chance of showers
74° 58°
30% rain up to 0.3″ SW 12 B
FRI Oct. 2 Showers likely Showers likely
69° 42°
60% rain up to 0.4″ W 7 C
SAT Oct. 3 Mostly sunny Mostly sunny
63° 36°
0% rain — NNE 5 B
SUN Oct. 4 Chance of showers Chance of showers
65° 40°
30% rain up to 0.1″ SSW 6 B
MON Oct. 5 Mostly sunny Mostly sunny
59° 32°
10% rain — W 9 C
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Louisville about 5,000 feet above the ground was over the western Atlantic three days ago, and over New England a day ago, about 870 miles back along its path. Most of the nine paths traced from around the city agree. It came down from about 13,200 feet up, warming and drying as it sank. Near the ground the air came from Canada; at 10,000 feet, from the western Atlantic. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

MILE7
ON THE NETWORK

Around Louisville on the Forecast Network

Neighboring plates

Syracuse NY · 141 MI 141 miles southwest Schenectady NY · 155 MI 155 miles south Colonie NY · 162 MI 162 miles south Albany NY · 166 MI 166 miles south
FORECASTCITY
Atlas plate of Louisville, New York. Explore the plate
NEW YORK · ST. LAWRENCE

Louisville

2,982 people, 280 ft above sea level in St. Lawrence County.

280 ftElevation
2,982People
49 sq miLand
Sunny 58°
SunnyDew point 51°
1

Today in Louisville

NEXT 15 HOURS
Now mostly cloudy day 64° 0%
6p partly cloudy day 63° 0%
9p mostly clear night 52° 0%
12a partly cloudy night 49° 0%
3a partly cloudy night 48° 0%
6a mostly cloudy night 47° 0%
Rain
NEXT RAINThursday about 9 PM · 57%
→
Tue0%
Partly cloudy Partly cloudy
44
65
A
Wed10%
Mostly cloudy; warmer Mostly cloudy; warmer
58
73
B
Thu30%
Chance of showers Chance of showers
58
74
B
Fri60%
Showers likely Showers likely
42
69
C
Sat0%
Mostly sunny Mostly sunny
36
63
B
Sun30%
Chance of showers Chance of showers
40
65
B
Mon10%
Mostly sunny Mostly sunny
32
59
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
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