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Current weather in Marathon is clear sky.

Where can I find the hourly weather forecast for Marathon?

This page shows hourly weather forecast for Marathon, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Marathon updated regularly?

Weather data for Marathon is updated regularly with the latest available observations and forecasts.

Now · 10:32 AM

Marathon Weather & Hourly Forecast

Canada · Ontario

13°C

Sunny

Feels like: 11°C

💧 Humidity 70% 🌡 Pressure 1033 hPa 💨 Wind 5 km/h 👁 Visibility 3.1 km ☁ Clouds 1% ☀️ UV index 1.0 · Low 🌅 Sunrise 7:30 AM 🌇 Sunset 7:45 PM

Hourly Forecast for Marathon

Today

11:00 AM

Sunny

13° 💧 None 💨 5 km/h H 70%1033 hPa

2:00 PM

Sunny

15° 💧 None 💨 9 km/h H 62%1034 hPa

5:00 PM

Sunny

14° 💧 None 💨 10 km/h H 66%1032 hPa

8:00 PM

Clear night

11° 💧 None 💨 3 km/h H 87%1032 hPa

11:00 PM

Clear night

9° 💧 None 💨 2 km/h H 96%1033 hPa

Tomorrow

2:00 AM

Partly cloudy night

7° 💧 None 💨 9 km/h H 99%1033 hPa

5:00 AM

Clear night

8° 💧 None 💨 9 km/h H 80%1034 hPa

8:00 AM

Sunny

8° 💧 None 💨 7 km/h H 81%1035 hPa

11:00 AM

Sunny

15° 💧 None 💨 11 km/h H 72%1035 hPa

2:00 PM

Sunny

15° 💧 None 💨 12 km/h H 66%1035 hPa

5:00 PM

Sunny

15° 💧 None 💨 9 km/h H 70%1033 hPa

8:00 PM

Clear night

11° 💧 None 💨 1 km/h H 89%1032 hPa

11:00 PM

Clear night

10° 💧 None 💨 7 km/h H 82%1032 hPa

Thursday

2:00 AM

Clear night

10° 💧 None 💨 12 km/h H 88%1032 hPa

5:00 AM

Clear night

10° 💧 None 💨 11 km/h H 93%1032 hPa

8:00 AM

Sunny

10° 💧 None 💨 11 km/h H 94%1032 hPa

Today

11:00 AM

Sunny

13° 💧 None 💨 5 km/h H 70%1033 hPa

12:00 PM

Sunny

14° 💧 None 💨 7 km/h H 63%1034 hPa

1:00 PM

Sunny

15° 💧 None 💨 8 km/h H 61%1034 hPa

2:00 PM

Sunny

15° 💧 None 💨 9 km/h H 62%1034 hPa

3:00 PM

Sunny

15° 💧 None 💨 10 km/h H 63%1033 hPa

4:00 PM

Sunny

15° 💧 None 💨 9 km/h H 64%1033 hPa

5:00 PM

Sunny

14° 💧 None 💨 10 km/h H 66%1032 hPa

6:00 PM

Sunny

14° 💧 None 💨 9 km/h H 69%1032 hPa

7:00 PM

Sunny

12° 💧 None 💨 5 km/h H 80%1032 hPa

8:00 PM

Clear night

11° 💧 None 💨 3 km/h H 87%1032 hPa

9:00 PM

Clear night

10° 💧 None 💨 1 km/h H 89%1032 hPa

10:00 PM

Clear night

10° 💧 None 💨 0 km/h H 92%1033 hPa

11:00 PM

Clear night

9° 💧 None 💨 2 km/h H 96%1033 hPa

Tomorrow

12:00 AM

Partly cloudy night

8° 💧 None 💨 5 km/h H 97%1033 hPa

1:00 AM

Partly cloudy night

7° 💧 None 💨 7 km/h H 98%1033 hPa

2:00 AM

Partly cloudy night

7° 💧 None 💨 9 km/h H 99%1033 hPa

3:00 AM

Mostly clear night

7° 💧 None 💨 10 km/h H 97%1033 hPa

4:00 AM

Clear night

7° 💧 None 💨 9 km/h H 88%1034 hPa

5:00 AM

Clear night

8° 💧 None 💨 9 km/h H 80%1034 hPa

6:00 AM

Clear night

8° 💧 None 💨 8 km/h H 78%1034 hPa

7:00 AM

Clear night

8° 💧 None 💨 7 km/h H 78%1035 hPa

8:00 AM

Sunny

8° 💧 None 💨 7 km/h H 81%1035 hPa

9:00 AM

Sunny

10° 💧 None 💨 9 km/h H 80%1035 hPa

10:00 AM

Sunny

13° 💧 None 💨 8 km/h H 76%1035 hPa

11:00 AM

Sunny

15° 💧 None 💨 11 km/h H 72%1035 hPa

12:00 PM

Sunny

15° 💧 None 💨 11 km/h H 67%1035 hPa

1:00 PM

Sunny

16° 💧 None 💨 12 km/h H 65%1035 hPa

2:00 PM

Sunny

15° 💧 None 💨 12 km/h H 66%1035 hPa

3:00 PM

Sunny

15° 💧 None 💨 11 km/h H 67%1034 hPa

4:00 PM

Sunny

15° 💧 None 💨 10 km/h H 68%1033 hPa

5:00 PM

Sunny

15° 💧 None 💨 9 km/h H 70%1033 hPa

6:00 PM

Sunny

14° 💧 None 💨 7 km/h H 73%1033 hPa

7:00 PM

Sunny

12° 💧 None 💨 3 km/h H 85%1033 hPa

8:00 PM

Clear night

11° 💧 None 💨 1 km/h H 89%1032 hPa

9:00 PM

Clear night

11° 💧 None 💨 2 km/h H 87%1032 hPa

10:00 PM

Clear night

10° 💧 None 💨 5 km/h H 84%1032 hPa

11:00 PM

Clear night

10° 💧 None 💨 7 km/h H 82%1032 hPa

Thursday

12:00 AM

Clear night

10° 💧 None 💨 8 km/h H 81%1032 hPa

1:00 AM

Clear night

10° 💧 None 💨 10 km/h H 84%1032 hPa

2:00 AM

Clear night

10° 💧 None 💨 12 km/h H 88%1032 hPa

3:00 AM

Clear night

10° 💧 None 💨 12 km/h H 90%1032 hPa

4:00 AM

Clear night

10° 💧 None 💨 12 km/h H 92%1032 hPa

5:00 AM

Clear night

10° 💧 None 💨 11 km/h H 93%1032 hPa

6:00 AM

Clear night

10° 💧 None 💨 11 km/h H 93%1032 hPa

7:00 AM

Clear night

10° 💧 None 💨 10 km/h H 94%1032 hPa

8:00 AM

Sunny

10° 💧 None 💨 11 km/h H 94%1032 hPa

9:00 AM

Sunny

11° 💧 None 💨 12 km/h H 92%1031 hPa

10:00 AM

Sunny

13° 💧 None 💨 13 km/h H 87%1031 hPa

11:00 AM

Sunny

14° 💧 None 💨 15 km/h H 80%1031 hPa

12:00 PM

Mostly sunny

15° 💧 None 💨 16 km/h H 73%1031 hPa

1:00 PM

Partly cloudy

15° 💧 None 💨 16 km/h H 71%1031 hPa

2:00 PM

Partly cloudy

15° 💧 None 💨 16 km/h H 71%1030 hPa

3:00 PM

Mostly sunny

15° 💧 None 💨 15 km/h H 72%1030 hPa

4:00 PM

Sunny

15° 💧 None 💨 15 km/h H 73%1029 hPa

5:00 PM

Partly cloudy

15° 💧 None 💨 14 km/h H 76%1029 hPa

6:00 PM

Mostly cloudy

14° 💧 None 💨 11 km/h H 79%1029 hPa

7:00 PM

Overcast

13° 💧 None 💨 8 km/h H 89%1028 hPa

8:00 PM

Overcast night

11° 💧 None 💨 8 km/h H 95%1028 hPa

Friday

5:00 AM

Overcast night

11° 💧 None 💨 11 km/h H 99%1028 hPa

8:00 AM

Partly cloudy

11° 💧 None 💨 10 km/h H 99%1028 hPa

11:00 AM

Overcast

14° 💧 None 💨 12 km/h H 87%1028 hPa

2:00 PM

Overcast

16° 💧 None 💨 11 km/h H 78%1028 hPa

5:00 PM

Mostly sunny

16° 💧 None 💨 9 km/h H 75%1027 hPa

8:00 PM

Clear night

11° 💧 None 💨 5 km/h H 99%1027 hPa

11:00 PM

Overcast night

10° 💧 None 💨 2 km/h H 100%1027 hPa

Saturday

2:00 AM

Overcast night

10° 💧 None 💨 2 km/h H 99%1027 hPa

5:00 AM

Overcast night

8° 💧 None 💨 2 km/h H 100%1026 hPa

8:00 AM

Overcast

8° 💧 None 💨 4 km/h H 97%1026 hPa

11:00 AM

Partly cloudy

15° 💧 None 💨 3 km/h H 80%1026 hPa

2:00 PM

Mostly sunny

19° 💧 None 💨 12 km/h H 65%1024 hPa

5:00 PM

Sunny

17° 💧 None 💨 9 km/h H 75%1023 hPa

8:00 PM

Overcast night

12° 💧 None 💨 5 km/h H 98%1022 hPa

11:00 PM

Mostly cloudy night

11° 💧 None 💨 11 km/h H 80%1021 hPa

Sunday

2:00 AM

Overcast night

12° 💧 None 💨 13 km/h H 93%1021 hPa

5:00 AM

Overcast night

12° 💧 None 💨 14 km/h H 98%1020 hPa

8:00 AM

Overcast

13° 💧 None 💨 14 km/h H 94%1019 hPa

11:00 AM

Mostly cloudy

15° 💧 None 💨 15 km/h H 80%1019 hPa

2:00 PM

Overcast

16° 💧 None 💨 16 km/h H 70%1018 hPa

5:00 PM

Mostly cloudy

15° 💧 None 💨 14 km/h H 81%1018 hPa

8:00 PM

Clear night

12° 💧 None 💨 12 km/h H 98%1017 hPa

11:00 PM

Mostly clear night

11° 💧 None 💨 9 km/h H 99%1017 hPa

Monday

2:00 AM

Clear night

11° 💧 None 💨 7 km/h H 99%1017 hPa

8:00 AM

Overcast

11° 💧 None 💨 6 km/h H 100%1017 hPa

2:00 PM

Mostly sunny

12° 💧 None 💨 6 km/h H 99%1016 hPa

8:00 PM

Overcast night

19° 💧 None 💨 11 km/h H 73%1015 hPa

Tuesday

2:00 AM

Overcast night

14° 💧 None 💨 9 km/h H 96%1014 hPa

8:00 AM

Light rain

14° 💧 None 💨 10 km/h H 99%1013 hPa

2:00 PM

Overcast

14° 💧 None 💨 3 km/h H 100%1013 hPa

8:00 PM

Overcast night

21° 💧 None 💨 7 km/h H 44%1014 hPa

Wednesday

2:00 AM

Overcast night

14° 💧 None 💨 7 km/h H 59%1016 hPa

8:00 AM

Overcast

11° 💧 None 💨 9 km/h H 68%1018 hPa

2:00 PM

Partly cloudy

11° 💧 None 💨 8 km/h H 75%1019 hPa

8:00 PM

Mostly clear night

20° 💧 None 💨 7 km/h H 63%1020 hPa

Thursday

2:00 AM

Partly cloudy night

13° 💧 None 💨 6 km/h H 100%1020 hPa

8:00 AM

Overcast

14° 💧 None 💨 6 km/h H 100%1021 hPa

2:00 PM

Overcast

14° 💧 None 💨 6 km/h H 100%1022 hPa

8:00 PM

Overcast night

20° 💧 None 💨 16 km/h H 74%1022 hPa

Friday

2:00 AM

Overcast night

15° 💧 None 💨 11 km/h H 100%1022 hPa

8:00 AM

Overcast

15° 💧 None 💨 10 km/h H 98%1021 hPa

2:00 PM

Light rain

15° 💧 None 💨 11 km/h H 100%1020 hPa

8:00 PM

Light rain

17° 💧 None 💨 15 km/h H 99%1018 hPa

Saturday

2:00 AM

Light rain

16° 💧 None 💨 17 km/h H 99%1015 hPa

8:00 AM

Overcast

15° 💧 None 💨 9 km/h H 100%1015 hPa

2:00 PM

Overcast

15° 💧 None 💨 6 km/h H 100%1015 hPa

8:00 PM

Overcast night

17° 💧 None 💨 12 km/h H 99%1013 hPa

Sunday

2:00 AM

Overcast night

18° 💧 None 💨 15 km/h H 91%1009 hPa

8:00 AM

Heavy rain

15° 💧 None 💨 22 km/h H 98%1004 hPa

2:00 PM

Light rain

15° 💧 None 💨 16 km/h H 99%1001 hPa

8:00 PM

Partly cloudy night

14° 💧 None 💨 26 km/h H 45%1009 hPa

Monday

2:00 AM

Mostly clear night

11° 💧 None 💨 13 km/h H 54%1015 hPa

8:00 AM

Sunny

6° 💧 None 💨 10 km/h H 81%1018 hPa

2:00 PM

Sunny

5° 💧 None 💨 8 km/h H 88%1020 hPa

8:00 PM

Partly cloudy night

13° 💧 None 💨 15 km/h H 51%1021 hPa

Tuesday

2:00 AM

Partly cloudy night

8° 💧 None 💨 11 km/h H 90%1021 hPa

8:00 AM

Overcast

7° 💧 None 💨 5 km/h H 97%1020 hPa

2:00 PM

Overcast

9° 💧 None 💨 11 km/h H 98%1019 hPa

8:00 PM

Light rain

13° 💧 None 💨 17 km/h H 78%1017 hPa

Wednesday

2:00 AM

Partly cloudy night

10° 💧 None 💨 11 km/h H 97%1015 hPa

In Marathon and, more broadly, across the province of Ontario: This morning across the region, mainly cloudy skies are expected to persist, with temperatures ranging from about 8 to 17 degrees Celsius. In many areas, conditions are expected to remain dry through the early hours. During the afternoon, skies will likely stay mostly cloudy, with temperatures remaining steady within the same range. Winds will predominantly come from the northeast at around 14 km/h, with gusts reaching up to 32 km/h at times. Overall, little to no precipitation is anticipated today, but the breeze from the northeast may cause some minor disturbances locally. No significant weather hazards are expected in the coming hours.

15-Day Weather Outlook for Marathon

TomorrowTomorrow

Partly cloudy 16°/7° 💧 None 💨 12 km/h

Thursday, Sep 24Thu Sep 24

Mostly sunny 15°/10° 💧 None 💨 16 km/h

Friday, Sep 25Fri Sep 25

Mostly cloudy 17°/10° 💧 0.0 mm 💨 11 km/h

Saturday, Sep 26Sat Sep 26

Overcast 19°/9° 💧 None 💨 11 km/h

Sunday, Sep 27Sun Sep 27

Overcast 16°/10° 💧 0.0 mm 💨 17 km/h

Monday, Sep 28Mon Sep 28

Overcast 19°/11° 💧 0.2 mm 💨 11 km/h

Tuesday, Sep 29Tue Sep 29

Light rain 21°/14° 💧 6.3 mm 💨 10 km/h

Wednesday, Sep 30Wed Sep 30

Overcast 20°/11° 💧 None 💨 9 km/h

Thursday, Oct 1Thu Oct 1

Overcast 20°/14° 💧 0.2 mm 💨 16 km/h

Friday, Oct 2Fri Oct 2

Light rain 17°/15° 💧 7.1 mm 💨 17 km/h

Saturday, Oct 3Sat Oct 3

Overcast 18°/15° 💧 1.7 mm 💨 15 km/h

Sunday, Oct 4Sun Oct 4

Heavy rain 15°/11° 💧 27 mm 💨 26 km/h

Monday, Oct 5Mon Oct 5

Partly cloudy 13°/5° 💧 None 💨 15 km/h

Tuesday, Oct 6Tue Oct 6

Light rain 13°/7° 💧 1.5 mm 💨 17 km/h

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Marathon

Vertical axis: °C · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Marathon

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 11:00 AM

PM2.5 Fine particles Good 0,5µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 0,5µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 74,6µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 1,8µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Marathon

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 4,2Moderate 🙂Fair

Tomorrow UV 4,1Moderate 🙂Fair

Thursday UV 3,6Moderate 🙂Fair

Friday UV 4,0Moderate 🙂Fair

Saturday UV 5,0Moderate 🙂Fair

Sunday UV 3,0Moderate —Unavailable

Monday UV 4,0Moderate —Unavailable

Hourly UV index today

11:00 AMUV 2,1 12:00 PMUV 3,2 1:00 PMUV 4,0 2:00 PMUV 4,2 3:00 PMUV 3,7 4:00 PMUV 2,7 5:00 PMUV 1,5 6:00 PMUV 0,6 7:00 PMUV 0,2

Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Marathon

Vertical axis: km/h · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MARATHON, ONTARIO

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 6:00 AM–7:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 6:00 AM–7:00 AM Astronomical darkness: 9:30 PM–5:47 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 89% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 54° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min70%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Marathon were last refreshed today at 10:32 AM. The current forecast period extends through 24/09/2026 at 8:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.