What is the weather in Ottawa right now?

Current weather in Ottawa is clear sky.

Where can I find the hourly weather forecast for Ottawa?

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

Is the weather forecast for Ottawa updated regularly?

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

Now · 1:48 PM

Ottawa Weather & Hourly Forecast

United States · Ohio · 45875

79°F

Sunny

Feels like: 76°F

💧 Humidity 44% 🌡 Pressure 30.15 inHg 💨 Wind 7 mph 👁 Visibility 24.9 mi ☁ Clouds 2% ☀️ UV index 6.8 · High 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Ottawa

Today

2:00 PM

Sunny

79° 💧 None 💨 7 mph H 44%30.15 inHg

5:00 PM

Sunny

79° 💧 None 💨 8 mph H 46%30.12 inHg

8:00 PM

Sunny

70° 💧 None 💨 11 mph H 55%30.15 inHg

11:00 PM

Overcast night

65° 💧 None 💨 8 mph H 66%30.18 inHg

Tomorrow

2:00 AM

Overcast night

63° 💧 None 💨 7 mph H 74%30.18 inHg

5:00 AM

Partly cloudy night

62° 💧 None 💨 5 mph H 82%30.18 inHg

8:00 AM

Mostly cloudy

64° 💧 None 💨 7 mph H 78%30.21 inHg

11:00 AM

Mostly sunny

76° 💧 0.000 in 💨 5 mph H 62%30.18 inHg

2:00 PM

Mostly cloudy

84° 💧 0.003 in 💨 6 mph H 55%30.12 inHg

5:00 PM

Mostly sunny

86° 💧 None 💨 6 mph H 52%30.09 inHg

8:00 PM

Overcast night

79° 💧 None 💨 4 mph H 70%30.09 inHg

11:00 PM

Mostly clear night

76° 💧 None 💨 6 mph H 77%30.09 inHg

Wednesday

2:00 AM

Mostly clear night

74° 💧 None 💨 8 mph H 81%30.09 inHg

5:00 AM

Mostly cloudy night

74° 💧 None 💨 10 mph H 79%30.06 inHg

8:00 AM

Partly cloudy

75° 💧 None 💨 11 mph H 75%30.09 inHg

11:00 AM

Overcast

84° 💧 None 💨 14 mph H 60%30.03 inHg

Today

2:00 PM

Sunny

79° 💧 None 💨 7 mph H 44%30.15 inHg

3:00 PM

Sunny

79° 💧 None 💨 7 mph H 45%30.15 inHg

4:00 PM

Sunny

80° 💧 None 💨 7 mph H 45%30.12 inHg

5:00 PM

Sunny

79° 💧 None 💨 8 mph H 46%30.12 inHg

6:00 PM

Mostly sunny

79° 💧 None 💨 8 mph H 46%30.12 inHg

7:00 PM

Mostly sunny

76° 💧 None 💨 9 mph H 51%30.12 inHg

8:00 PM

Sunny

70° 💧 None 💨 11 mph H 55%30.15 inHg

9:00 PM

Clear night

68° 💧 None 💨 9 mph H 61%30.15 inHg

10:00 PM

Mostly cloudy night

66° 💧 None 💨 8 mph H 64%30.18 inHg

11:00 PM

Overcast night

65° 💧 None 💨 8 mph H 66%30.18 inHg

Tomorrow

12:00 AM

Overcast night

65° 💧 None 💨 8 mph H 66%30.18 inHg

1:00 AM

Overcast night

64° 💧 None 💨 8 mph H 70%30.18 inHg

2:00 AM

Overcast night

63° 💧 None 💨 7 mph H 74%30.18 inHg

3:00 AM

Partly cloudy night

62° 💧 None 💨 6 mph H 78%30.18 inHg

4:00 AM

Overcast night

62° 💧 None 💨 5 mph H 81%30.18 inHg

5:00 AM

Partly cloudy night

62° 💧 None 💨 5 mph H 82%30.18 inHg

6:00 AM

Mostly cloudy night

62° 💧 None 💨 6 mph H 81%30.18 inHg

7:00 AM

Mostly cloudy night

63° 💧 None 💨 6 mph H 81%30.18 inHg

8:00 AM

Mostly cloudy

64° 💧 None 💨 7 mph H 78%30.21 inHg

9:00 AM

Partly cloudy

68° 💧 None 💨 6 mph H 72%30.18 inHg

10:00 AM

Mostly sunny

72° 💧 None 💨 6 mph H 66%30.18 inHg

11:00 AM

Mostly sunny

76° 💧 None 💨 5 mph H 62%30.18 inHg

12:00 PM

Mostly sunny

80° 💧 None 💨 5 mph H 60%30.18 inHg

1:00 PM

Mostly sunny

83° 💧 0.000 in 💨 5 mph H 58%30.18 inHg

2:00 PM

Mostly cloudy

84° 💧 0.001 in 💨 6 mph H 55%30.12 inHg

3:00 PM

Mostly cloudy

85° 💧 0.001 in 💨 7 mph H 53%30.12 inHg

4:00 PM

Overcast

86° 💧 0.000 in 💨 6 mph H 52%30.09 inHg

5:00 PM

Mostly sunny

86° 💧 None 💨 6 mph H 52%30.09 inHg

6:00 PM

Mostly cloudy

85° 💧 None 💨 6 mph H 53%30.09 inHg

7:00 PM

Overcast

83° 💧 None 💨 5 mph H 60%30.09 inHg

8:00 PM

Overcast night

79° 💧 None 💨 4 mph H 70%30.09 inHg

9:00 PM

Overcast night

78° 💧 None 💨 6 mph H 74%30.09 inHg

10:00 PM

Overcast night

77° 💧 None 💨 6 mph H 74%30.09 inHg

11:00 PM

Mostly clear night

76° 💧 None 💨 6 mph H 77%30.09 inHg

Wednesday

12:00 AM

Mostly clear night

74° 💧 None 💨 7 mph H 81%30.09 inHg

1:00 AM

Clear night

74° 💧 None 💨 8 mph H 83%30.09 inHg

2:00 AM

Mostly clear night

74° 💧 None 💨 8 mph H 81%30.09 inHg

3:00 AM

Mostly cloudy night

74° 💧 None 💨 9 mph H 80%30.06 inHg

4:00 AM

Mostly cloudy night

74° 💧 None 💨 9 mph H 80%30.06 inHg

5:00 AM

Mostly cloudy night

74° 💧 None 💨 10 mph H 79%30.06 inHg

6:00 AM

Mostly cloudy night

74° 💧 None 💨 11 mph H 78%30.06 inHg

7:00 AM

Mostly clear night

73° 💧 None 💨 11 mph H 78%30.06 inHg

8:00 AM

Partly cloudy

75° 💧 None 💨 11 mph H 75%30.09 inHg

9:00 AM

Mostly cloudy

78° 💧 None 💨 10 mph H 70%30.06 inHg

10:00 AM

Partly cloudy

81° 💧 None 💨 13 mph H 65%30.06 inHg

11:00 AM

Overcast

84° 💧 None 💨 14 mph H 60%30.03 inHg

12:00 PM

Mostly cloudy

86° 💧 None 💨 15 mph H 58%30.03 inHg

1:00 PM

Partly cloudy

88° 💧 None 💨 16 mph H 54%30.00 inHg

2:00 PM

Sunny

90° 💧 None 💨 15 mph H 50%29.97 inHg

3:00 PM

Mostly sunny

91° 💧 0.001 in 💨 16 mph H 48%29.97 inHg

4:00 PM

Light rain

89° 💧 0.009 in 💨 15 mph H 49%29.94 inHg

5:00 PM

Sunny

89° 💧 0.001 in 💨 13 mph H 51%29.91 inHg

6:00 PM

Light thunderstorms

81° 💧 0.081 in 💨 14 mph H 72%29.94 inHg

7:00 PM

Light rain

76° 💧 0.079 in 💨 8 mph H 91%29.94 inHg

8:00 PM

Light thunderstorms

75° 💧 0.046 in 💨 8 mph H 92%29.94 inHg

Thursday

5:00 AM

Moderate rain

70° 💧 None 💨 6 mph H 96%29.94 inHg

8:00 AM

Light rain

70° 💧 None 💨 6 mph H 98%29.97 inHg

11:00 AM

Overcast

71° 💧 None 💨 3 mph H 94%29.97 inHg

2:00 PM

Overcast

76° 💧 None 💨 6 mph H 76%29.94 inHg

5:00 PM

Overcast

78° 💧 None 💨 7 mph H 67%29.88 inHg

8:00 PM

Mostly cloudy night

72° 💧 None 💨 4 mph H 78%29.88 inHg

11:00 PM

Clear night

68° 💧 None 💨 6 mph H 75%29.94 inHg

Friday

2:00 AM

Clear night

63° 💧 None 💨 4 mph H 79%29.97 inHg

5:00 AM

Clear night

59° 💧 None 💨 4 mph H 90%30.00 inHg

8:00 AM

Sunny

60° 💧 None 💨 5 mph H 92%30.03 inHg

11:00 AM

Sunny

72° 💧 None 💨 8 mph H 75%30.03 inHg

2:00 PM

Mostly sunny

76° 💧 None 💨 6 mph H 60%30.00 inHg

5:00 PM

Mostly sunny

77° 💧 None 💨 5 mph H 54%29.97 inHg

8:00 PM

Clear night

70° 💧 None 💨 3 mph H 72%29.94 inHg

11:00 PM

Overcast night

66° 💧 None 💨 7 mph H 80%29.97 inHg

Saturday

2:00 AM

Partly cloudy night

64° 💧 None 💨 9 mph H 81%29.97 inHg

5:00 AM

Mostly cloudy night

63° 💧 None 💨 7 mph H 86%29.97 inHg

8:00 AM

Sunny

63° 💧 None 💨 8 mph H 86%29.97 inHg

11:00 AM

Light rain

72° 💧 None 💨 8 mph H 75%29.97 inHg

2:00 PM

Partly cloudy

77° 💧 None 💨 7 mph H 74%29.94 inHg

5:00 PM

Overcast

81° 💧 None 💨 5 mph H 65%29.88 inHg

8:00 PM

Light rain

76° 💧 None 💨 5 mph H 83%29.91 inHg

11:00 PM

Overcast night

71° 💧 None 💨 7 mph H 95%29.97 inHg

Sunday

2:00 AM

Mostly clear night

69° 💧 None 💨 6 mph H 98%30.00 inHg

8:00 AM

Sunny

71° 💧 None 💨 4 mph H 96%30.00 inHg

2:00 PM

Overcast

71° 💧 None 💨 3 mph H 97%30.06 inHg

8:00 PM

Mostly clear night

84° 💧 None 💨 4 mph H 58%30.06 inHg

Monday

2:00 AM

Overcast night

78° 💧 None 💨 6 mph H 48%30.06 inHg

8:00 AM

Partly cloudy

68° 💧 None 💨 4 mph H 72%30.12 inHg

2:00 PM

Mostly cloudy

68° 💧 None 💨 7 mph H 93%30.12 inHg

8:00 PM

Mostly cloudy night

80° 💧 None 💨 9 mph H 72%30.09 inHg

Tuesday

2:00 AM

Overcast night

79° 💧 None 💨 7 mph H 78%29.97 inHg

8:00 AM

Overcast

78° 💧 None 💨 13 mph H 76%29.91 inHg

2:00 PM

Mostly cloudy

78° 💧 None 💨 15 mph H 72%29.88 inHg

8:00 PM

Clear night

76° 💧 None 💨 11 mph H 58%29.97 inHg

Wednesday

2:00 AM

Mostly clear night

70° 💧 None 💨 11 mph H 56%30.06 inHg

8:00 AM

Sunny

59° 💧 None 💨 6 mph H 78%30.21 inHg

2:00 PM

Sunny

56° 💧 None 💨 6 mph H 83%30.30 inHg

8:00 PM

Clear night

72° 💧 None 💨 6 mph H 42%30.30 inHg

Thursday

2:00 AM

Clear night

66° 💧 None 💨 3 mph H 55%30.27 inHg

8:00 AM

Mostly cloudy

58° 💧 None 💨 5 mph H 72%30.33 inHg

2:00 PM

Partly cloudy

53° 💧 None 💨 4 mph H 88%30.33 inHg

8:00 PM

Mostly cloudy night

73° 💧 None 💨 9 mph H 48%30.27 inHg

Friday

2:00 AM

Mostly clear night

65° 💧 None 💨 6 mph H 51%30.21 inHg

8:00 AM

Sunny

55° 💧 None 💨 7 mph H 80%30.24 inHg

2:00 PM

Sunny

49° 💧 None 💨 3 mph H 88%30.24 inHg

8:00 PM

Clear night

71° 💧 None 💨 13 mph H 42%30.15 inHg

Saturday

2:00 AM

Clear night

66° 💧 None 💨 10 mph H 37%30.09 inHg

8:00 AM

Mostly sunny

55° 💧 None 💨 4 mph H 62%30.12 inHg

2:00 PM

Sunny

52° 💧 None 💨 5 mph H 79%30.12 inHg

8:00 PM

Mostly clear night

73° 💧 None 💨 8 mph H 38%30.09 inHg

Sunday

2:00 AM

Mostly clear night

66° 💧 None 💨 4 mph H 46%30.06 inHg

8:00 AM

Sunny

56° 💧 None 💨 3 mph H 70%30.09 inHg

2:00 PM

Mostly sunny

51° 💧 None 💨 4 mph H 86%30.09 inHg

8:00 PM

Partly cloudy night

78° 💧 None 💨 11 mph H 34%30.03 inHg

Monday

2:00 AM

Overcast night

72° 💧 None 💨 8 mph H 44%29.97 inHg

8:00 AM

Overcast

65° 💧 None 💨 6 mph H 61%29.97 inHg

2:00 PM

Overcast

61° 💧 None 💨 6 mph H 72%30.00 inHg

8:00 PM

Overcast night

81° 💧 None 💨 10 mph H 34%29.94 inHg

Tuesday

2:00 AM

Partly cloudy night

72° 💧 None 💨 9 mph H 54%29.94 inHg

In Ottawa and, more broadly, across the state of Ohio: The rest of the day will be mostly sunny with just a few clouds drifting through. Temperatures will remain mild to warm, ranging from around 64 degrees to 76 degrees. Winds will be moderate from the northeast, with sustained speeds up to 11 mph and gusts reaching 23 mph. No rain is expected, so outdoor plans should be comfortable. As the afternoon progresses, conditions will stay generally steady with pleasant weather and light breezes. Overall, it looks like a fine day to be outside, with no significant weather concerns.

15-Day Weather Outlook for Ottawa

TomorrowTomorrow

Mostly cloudy 86°/62° 💧 None 💨 11 mph

Wednesday, Sep 9Wed Sep 9

Light thunderstorms 91°/73° 💧 None 💨 16 mph

Thursday, Sep 10Thu Sep 10

Light thunderstorms 78°/70° 💧 0.829 in 💨 8 mph

Friday, Sep 11Fri Sep 11

Mostly sunny 77°/59° 💧 0.001 in 💨 8 mph

Saturday, Sep 12Sat Sep 12

Light rain 81°/63° 💧 0.062 in 💨 9 mph

Sunday, Sep 13Sun Sep 13

Light rain 76°/69° 💧 0.015 in 💨 7 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 84°/68° 💧 0.008 in 💨 7 mph

Tuesday, Sep 15Tue Sep 15

Mostly cloudy 80°/78° 💧 0.236 in 💨 15 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 76°/56° 💧 0.077 in 💨 11 mph

Thursday, Sep 17Thu Sep 17

Mostly cloudy 72°/53° 💧 None 💨 6 mph

Friday, Sep 18Fri Sep 18

Mostly cloudy 73°/49° 💧 0.002 in 💨 9 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 71°/52° 💧 None 💨 13 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 73°/51° 💧 None 💨 8 mph

Monday, Sep 21Mon Sep 21

Partly cloudy 78°/61° 💧 None 💨 11 mph

Tuesday, Sep 22Tue Sep 22

Overcast 81°/72° 💧 None 💨 10 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Ottawa

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Ottawa

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 2:00 PM

PM2.5 Fine particles Good 4,8µg/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 5,2µg/m³

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

O₃ Ozone Fair 74,4µg/m³

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

NO₂ Nitrogen dioxide Good 1,2µg/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 Ottawa

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 6,9High 🙂Fair

Tomorrow UV 6,4High 🙂Fair

Wednesday UV 5,2Moderate 😐Moderate

Thursday UV 5,7Moderate 🙂Fair

Friday UV 7,0High 🙂Fair

Saturday UV 7,0High —Unavailable

Sunday UV 7,0High —Unavailable

Hourly UV index today

2:00 PMUV 6,9 3:00 PMUV 5,9 4:00 PMUV 4,3 5:00 PMUV 2,5 6:00 PMUV 1,1 7:00 PMUV 0,3

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

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Acceptable air quality

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

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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 Ottawa

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · OTTAWA, OHIO

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

60/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 9:34 PM–5:35 AM

☁ Cloud cover 56% Real hourly forecast for the best viewing hour.

☾ Moonlight 14% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 60° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min58%

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

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

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

UPCOMING

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

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.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

Monroe North US · Washington · 1,456 residents South Amboy US · New Jersey · 9,989 residents Bristol GB · England · 615,703 residents Sewardstone GB · England · 720 residents Elk Grove Village US · Illinois · 31,987 residents Beaumont US · California · 56,266 residents Deming US · Washington · 568 residents Mercer Island US · Washington · 25,307 residents Northborough US · Massachusetts · 6,392 residents Killeen US · Texas · 158,159 residents Gulf Shores US · Alabama · 16,401 residents Paris US · Texas · 24,775 residents Lemoore US · California · 27,102 residents Haslett US · Michigan · 18,559 residents Waverly US · Illinois · 1,375 residents Wattle Grove (NSW) AU · New South Wales · 8,886 residents

Forecast data for Ottawa were last refreshed today at 1:48 PM. The current forecast period extends through 09/09/2026 at 11:00 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.