Cities / Canada / Ontario

21°

☁️ Letterkenny weather

Overcast. .

Feels like 22° Wind 6 km/h N Humidity 81% Pressure 1011 hPa UV 0 Air Good 06:34 - 19:43

Right now it is 21° in Letterkenny with overcast skies and today's high is 22° with an overnight low of 12°. The sun rises at 06:34 and sets at 19:43, giving 13h 09m of daylight. Over the coming week highs range from 18° to 25°.

Letterkenny is in Ontario, Canada, sitting 391 m above sea level. Local time is America/Toronto (UTC−4), and every time on this page is shown in it.

Next 24 hours - temperature

13° 18° 22° 21° 13° 18:00 · 21.1° · 0 mm 19:00 · 19.9° · 0 mm 20:00 · 18.9° · 0 mm 21:00 · 17.9° · 0 mm 22:00 · 17.5° · 0 mm 23:00 · 16.6° · 0 mm 00:00 · 16.1° · 0 mm 01:00 · 15.6° · 0 mm 02:00 · 15.2° · 0 mm 03:00 · 14.9° · 0 mm 04:00 · 14.5° · 0 mm 05:00 · 13.9° · 0 mm 06:00 · 13.5° · 0 mm 07:00 · 13.2° · 0 mm 08:00 · 14.4° · 0 mm 09:00 · 15.3° · 0 mm 10:00 · 16.3° · 0 mm 11:00 · 17° · 0 mm 12:00 · 18.2° · 0 mm 13:00 · 18.8° · 0 mm 14:00 · 19.1° · 0 mm 15:00 · 19.4° · 0 mm 16:00 · 19.6° · 0 mm 17:00 · 19.4° · 0 mm

Precipitation

18:00 · 0 mm 18:00 19:00 · 0 mm 20:00 · 0 mm 21:00 · 0 mm 21:00 22:00 · 0 mm 23:00 · 0 mm 00:00 · 0 mm 00:00 01:00 · 0 mm 02:00 · 0 mm 03:00 · 0 mm 03:00 04:00 · 0 mm 05:00 · 0 mm 06:00 · 0 mm 06:00 07:00 · 0 mm 08:00 · 0 mm 09:00 · 0 mm 09:00 10:00 · 0 mm 11:00 · 0 mm 12:00 · 0 mm 12:00 13:00 · 0 mm 14:00 · 0 mm 15:00 · 0 mm 15:00 16:00 · 0 mm 17:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
18:00 21.1° 22.2° - Partly cloudy
19:00 ☁️ 19.9° 21.3° - Overcast
20:00 18.9° 19.6° - Partly cloudy
21:00 ☀️ 17.9° 17.9° - Clear sky
22:00 17.5° 17.5° - Partly cloudy
23:00 ☀️ 16.6° 16.3° - Clear sky
00:00 ☀️ 16.1° 15.5° - Clear sky
01:00 ☀️ 15.6° 15° - Clear sky
02:00 ☀️ 15.2° 14.5° - Clear sky
03:00 ☀️ 14.9° 14.1° - Clear sky
04:00 ☀️ 14.5° 13.4° - Clear sky
05:00 ☀️ 13.9° 12.6° - Clear sky

Next 16 days

☀️ TodaySeptember 3rd Avg 18° Low 12° at 07:00 High 22° at 15:00 Wind ~12 km/h
Clear Cloudy Clear
00:00 16°
02:00 15°
04:00 14°
06:00 12°
08:00 14°
10:00 18°
12:00 21°
14:00 22°
16:00 22°
18:00 21°
20:00 19°
22:00 18°
🌧️ FridaySeptember 4th Avg 16° Low 13° at 07:00 High 20° at 16:00 1.1 mm rain Wind ~15 km/h
Clear Cloudy
00:00 16°
02:00 15°
04:00 15°
06:00 14°
08:00 14°
10:00 16°
12:00 18°
14:00 19°
16:00 20°
18:00 19°
20:00 16°
22:00 15° 1.1mm
☁️ SaturdaySeptember 5th Avg 15° Low 11° at 23:00 High 20° at 14:00 0.2 mm rain Feels 18° Wind ~15 km/h
Clear Cloudy Partly Cloudy Cloudy Clear
00:00 15°
02:00 14°
04:00 13°
06:00 12°
08:00 13°
10:00 14°
12:00 17°
14:00 20° 0.08mm
16:00 20°
18:00 19°
20:00 16°
22:00 12°
☀️ SundaySeptember 6th Avg 14° Low at 06:00 High 22° at 16:00 Feels 20° Wind ~12 km/h
Clear Clear
00:00 11°
02:00
04:00
06:00
08:00 10°
10:00 15°
12:00 19°
14:00 21°
16:00 22°
18:00 21°
20:00 14°
22:00 13°
🌦️ MondaySeptember 7th Avg 16° Low 10° at 06:00 High 25° at 14:00 0.4 mm rain Feels 22° Wind ~17 km/h
Clear Cloudy
00:00 12°
02:00 11°
04:00 11°
06:00 10°
08:00 13°
10:00 20°
12:00 23°
14:00 25°
16:00 22°
18:00 16° 0.2mm
20:00 14°
22:00 13°
☁️ TuesdaySeptember 8th Avg 11° Low at 07:00 High 18° at 15:00 Feels 16° Wind ~13 km/h
Clear Cloudy
00:00 12°
02:00
04:00
06:00
08:00
10:00 12°
12:00 16°
14:00 18°
16:00 18°
18:00 15°
20:00 12°
22:00 11°
🌦️ WednesdaySeptember 9th Avg 13° Low 11° at 00:00 High 18° at 23:00 3.6 mm rain Wind ~14 km/h
Cloudy Rain Cloudy
00:00 11°
02:00 12°
04:00 12°
06:00 12°
08:00 12°
10:00 11° 0.1mm
12:00 12° 0.5mm
14:00 13° 0.5mm
16:00 14° 0.4mm
18:00 15° 0.2mm
20:00 17° 0.2mm
22:00 18°
🌦️ ThursdaySeptember 10th Avg 15° Low at 23:00 High 18° at 14:00 2.4 mm rain Wind ~24 km/h
Cloudy Rain Clear
00:00 18°
02:00 16°
04:00 15°
06:00 14°
08:00 13°
10:00 15°
12:00 17° 0.5mm
14:00 18° 0.5mm
16:00 18° 0.3mm
18:00 15°
20:00 12°
22:00 10°
☁️ FridaySeptember 11th Avg 10° Low at 23:00 High 16° at 17:00 Feels 10° Wind ~21 km/h
Cloudy Clear
00:00
02:00
04:00
06:00
08:00
10:00 10°
12:00 12°
14:00 13°
16:00 16°
18:00 14°
20:00
22:00
☀️ SaturdaySeptember 12th Avg Low at 05:00 High 18° at 16:00 Feels 14° Wind ~15 km/h
Clear Partly Cloudy
00:00
02:00
04:00
06:00
08:00
10:00 10°
12:00 14°
14:00 17°
16:00 18°
18:00 15°
20:00 10°
22:00
🌧️ SundaySeptember 13th Avg Low at 04:00 High 12° at 13:00 4.2 mm rain Feels 10° Wind ~12 km/h
Cloudy Rain Cloudy
00:00
02:00
04:00
06:00
08:00
10:00 11°
12:00 12°
14:00 12°
16:00 10° 1.1mm
18:00 0.3mm
20:00 0.3mm
22:00
☁️ MondaySeptember 14th Avg 16° Low at 00:00 High 25° at 17:00 0.3 mm rain Wind ~13 km/h
Cloudy Rain Cloudy Partly Cloudy
00:00
02:00 10°
04:00 10°
06:00 10° 0.1mm
08:00 11° 0.1mm
10:00 13°
12:00 18°
14:00 22°
16:00 25°
18:00 24°
20:00 20°
22:00 19°
🌦️ TuesdaySeptember 15th Avg 20° Low 17° at 23:00 High 22° at 14:00 6 mm rain Wind ~18 km/h
Rain Partly Cloudy
00:00 19° 0.4mm
02:00 20° 0.4mm
04:00 20° 0.8mm
06:00 20° 0.2mm
08:00 20° 0.2mm
10:00 20° 0.4mm
12:00 21° 0.1mm
14:00 22° 0.1mm
16:00 22° 0.1mm
18:00 20°
20:00 18°
22:00 17°
☁️ WednesdaySeptember 16th Avg 15° Low 12° at 05:00 High 18° at 17:00 Wind ~14 km/h
Clear Cloudy
00:00 16°
02:00 14°
04:00 13°
06:00 12°
08:00 13°
10:00 15°
12:00 17°
14:00 17°
16:00 18°
18:00 17°
20:00 15°
22:00 14°
🌧️ ThursdaySeptember 17th Avg 15° Low 13° at 07:00 High 20° at 12:00 17.7 mm rain Wind ~11 km/h
Cloudy Rain
00:00 14°
02:00 13°
04:00 13°
06:00 13°
08:00 13°
10:00 18°
12:00 20°
14:00 19°
16:00 17° 0.1mm
18:00 16° 1.7mm
20:00 14° 1.7mm
22:00 14° 4.1mm
🌦️ FridaySeptember 18th Avg 17° Low 13° at 07:00 High 21° at 17:00 1.5 mm rain Wind ~24 km/h
Rain Cloudy Rain Cloudy Rain
00:00 14° 0.1mm
02:00 14° 0.1mm
04:00 14°
06:00 13°
08:00 14°
10:00 16°
12:00 18° 0.1mm
14:00 20° 0.1mm
16:00 21°
18:00 20°
20:00 18°
22:00 19° 0.3mm

Sun

☀️ Sunrise 06:34 · Sunset 19:43

13h 09m of daylight · America/Toronto

Air quality

PM2.5 1.8 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Tools for Letterkenny

Common questions about Letterkenny weather

Will it rain in Letterkenny today?

No rain is in the forecast for Letterkenny today.

What is the temperature in Letterkenny right now?

It is 21° in Letterkenny right now. Today runs between a low of 12° and a high of 22°.

What time is sunrise and sunset in Letterkenny?

The sun rises at 06:34 and sets at 19:43 local time in Letterkenny today, giving 13h 09m of daylight.

What is the air quality in Letterkenny?

PM2.5 in Letterkenny is currently 1.8 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the Letterkenny forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Letterkenny best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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Everything above came from one call to the WeatherMetro API - free tier, 100,000 calls a month.

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