Ian Black
blacksweather.bsky.social
Ian Black
@blacksweather.bsky.social
Weather for Ottawa Canada. Long time TV radio and digital weatherman.
Today is the first day of Winter. The solstice arrives at 10:03 am, making today the shortest daylight of the year. From now on the days grow longer and longer 🌞. Flurries around today and windy. Temperatures fall all day long. Bundle up.
December 21, 2025 at 11:55 AM
Staying warm at the Christmas Market. It’s much cooler today. It’s -9° now. W/c -18. Increasing cloudiness. High -5°. Windy W 20-40 shifting SE 20-30. A pm flurry possible then snow starts this evening. ~2cm. Temps rise o/nite to -3°. A sun/cloud mix Sunday, with falling temps.
December 20, 2025 at 10:52 AM
Rain, melting snow and puddles this morning in Ottawa. It’s 8° now but temps will fall this pm reaching sub zero readings by 5pm. Wind SW 40-60. Low -8° with flurries. Partly cloudy Sat. am then clouding over with flurries by evening. High -3°. Windy with flurries Sunday & -2°.
December 19, 2025 at 10:29 AM
A Special Weather Statement has been issued for Ottawa for Rain, gusty winds and a quick freeze that could result in slippery surface late tomorrow.
December 18, 2025 at 7:37 PM
Walking on the winter causeway across Brown’s Inlet near the Bank St. Bridge -a first for me. A mild high of 4° today with clouds giving way to some sun. Wind SE ⬆️ 15-25+. Low 3° with rain developing. Morning high Fri. 7°, then temps falling through pm. Rain changes to flurries. High Sat -5°.
December 18, 2025 at 12:33 PM
A huge festive tree in the Glebe. Something we haven’t seen for awhile… mild weather. It’s above the freezing point already. High 3° with mainly cloudy skies & a pm shower. SW wind ⬆️ 30-50. Low -10°. Intervals of sun & cloud Thurs. & 4°. ☔️ Fri. & 7°. Colder late Fri into Sat.
December 17, 2025 at 12:21 PM
Footprints in the snow. Can you identify the wildlife? For those of you who don’t like the cold, temps will rise over the next few days but it could turn messy at times. Mainly cloudy today. High -3°. Wind S ⬆️ to 20+ by pm. Risk of freezing rain o/nite. Low -2°. A bit of wet snow or a ☔️ Wed. & 3°.
December 16, 2025 at 11:51 AM
Enjoying the sun yesterday while skiing in the Greenbelt. Still on the chilly side to start the workweek (10 days until Christmas by the way🎄). It’s -14° now. W/c -22. Mainly cloudy today. High -9°. Wind WSW 10-15. A stray flurry but no accumulation. Low -11°. ☁️ Tues. & -3°.
December 15, 2025 at 10:33 AM
Yesterday’s snowfall seen from my backyard. A break in the snow today (we’ve seen measurable snow on 10 of the last 17 days). The chill has returned though. Temps remain steady near -11° w/intervals of sun & cloud. Wind NW 15-20. Low -16°. Mainly cloudy Mon. & -8°. A pm flurry possible.
December 14, 2025 at 11:38 AM
Sunset today is at 4:19. It doesn’t set earlier than that. In fact, sunset tomorrow is at 4:20. By end of the month sunset is near 4:30. By March 9 sunset is after 7pm. Some snow today. ~4cm in spots. Milder. High -2°. Wind SW ⬆️ 20+. Low -16°. Much colder Sunday. Clearing & -12°.
December 13, 2025 at 10:24 AM
A gusty wind blows snow from the trees in the Greenbelt yesterday. Still blustery today too. Look for clouds, sunny breaks & a high of -5°. Wind W 20-40 will make it feel colder. 30% chance of flurries. Low -13°. A bit of snow develops Sat. am. 2-4cm. High -2°. ☀️ & -12° Sunday.
December 12, 2025 at 10:21 AM
Festive lights in the neighbourhood. 12cm of snow reported at the airport, & up to 2cm today in light snow. The real story now are cold, gusty winds causing blowing snow. It’s -11° now. W/c -20. High -9°. Wind W 30-50. Low -14°. Not as chilly Fri. High -5° under intervals of sun & cloud.
December 11, 2025 at 10:36 AM
Get ready for snow. Models are showing a bullseye of accumulations right over E. ON. Snow develops this morning lasting into the overnight. 10-20cm ❄️. High -2°. Wind E 10-20. Windy overnight & Thurs. causing blowing snow. Flurries redeveloping Thurs. 2-4cm. High -10°. #ONStorm
December 10, 2025 at 10:56 AM
Heads up Ottawa . #ONStorm
December 9, 2025 at 9:22 PM
Autumn seemed to quickly transition into Winter this year. Becoming mainly cloudy with a 40% chance of a developing flurry today. High -6°. Wind SE ⬆️ 10-20. Snow this eve. ending overnight. 2-4cm.
Heads up for a snowy Wed. 10-15cm ❄️❄️. High -2°. Colder Thurs. Blustery & -7°.
December 9, 2025 at 10:32 AM
Sunny skies but quite cold to start the workweek. It’s -18° now. W/c -26 🥶. The high only reaches -12° today (a normal LOW temp is -10°). Wind WNW 10-20. Low -20°. Not quite as cold by Tues. pm. High -6° w/pm light snow. A more significant snow, perhaps >10cm moves in Wed.
December 8, 2025 at 11:11 AM
Noon Sunday. Temp -10° in Ottawa. Radar shows snow lingering overhead. Better up the snow totals a bit. Up to 4cm.
December 7, 2025 at 5:54 PM
I went outside during the snow last night to look at the neighbourhood Christmas lights. The chill has returned. The high today will be -9° (norm is -2°), but the wind will be generally light, which is helpful. Periods of light snow will develop, ~2cm. Low -18°. ☀️ Mon. & -12°. Snow Tuesday/Wed.
December 7, 2025 at 10:40 AM
Sat. 545: pm. Heads up. Snow Squalls possible for Ottawa. #ONStorm
December 6, 2025 at 10:48 PM
Hiking in the Greenbelt. Periods of snow on & off this weekend. A cm or two here, a cm or two there -but the real story is the temperature roller coaster. We could hit 1° today with south winds 20-40. Cold air starts to pour in overnight. Low -13°. High Sunday -10°.☀️ Mon. & -11°.
December 6, 2025 at 10:42 AM
Who loves the cold? A snowman ⛄️. This happy guy appeared to be soaking up the Winter sunshine 🌞 yesterday. Dress warmly. It’s a clear -20° now. W/c -27. Turning out cloudy today. High -6°. Risk of frostbite 🥶. A stray flurry possible. Wind S ⬆️ 20. Low -7°. Flurries Sat & 0°.
December 5, 2025 at 11:19 AM
A cheerful snowman in my neighbourhood with his carrot nose stolen by a hungry squirrel. Dress warmly today. Cold air will pour into the region on the heels of gusty winds. It’s -8° now. W/c -15. Gradual clearing with temps ⬇️. NW wind ⬆️ 30-50. Low -19°. Mainly cloudy & -6° Fri.
December 4, 2025 at 12:11 PM
Crows hurry home as the sunsets yesterday. Very cold air moves into the area tomorrow with lows of -20° by early Fri. so enjoy a high today near 0°. Look for mainly cloudy skies with developing flurries possible. Wind SW ⬆️ 20-40 by pm. Low -11° w/flurries. Temps ⬇️ Thurs. Windy.
December 3, 2025 at 10:10 AM
While it feels cold out there, these temps aren’t that far from normal for early Dec. A storm is sliding by JUST south of Ottawa today, so if you don’t like snow you’ll be happy. Clouds may even give way to peaks of sun later. It’s -10° now. W/c -16. High -3°. Wind E 10-20.
December 2, 2025 at 11:22 AM
Welcome to December 🎄❄️. The winter weather has appeared as if on cue. It’s a cold -9° now. W/c -17. The high will struggle to touch -5° under mainly clear skies. Wind WNW with gusts >30 will have a bite so bundle up🧣. Low -10°. Periods of light snow Tues. with a high of -4°.
December 1, 2025 at 12:29 PM