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Saint Marys, OH Weather Forecast for 5-Days

Updated: Sun Dec 7th 2025 1:30 AM EST

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Saint Marys, OH Weather – 12-7 – Light Freezing Rain
35° / 19°
Light Freezing Rain
Saint Marys is set for rain with temperatures peaking at 35°F and dipping to 19°F. The chance of rain is 80% with an estimated 0.01in. Snow is likely with a 9% chance. Wind will be moderate, blowing around 13mph on average and gusts of 19.4mph at 7 PM. High humidity with average of 93% is anticipated, the maximum being 100% at 6 PM and 85% being its lowest at 2 AM. Barometric pressure is its highest of 30.32inHg at 11 PM, a lowest point of 30.03inHg at 5 AM with an avg 30.08inHg.
Saint Marys, OH Weather – 12-8 – Partly Cloudy
28° / 16°
Partly Cloudy
It will be cloudy in Saint Marys, with a high of 28°F and a low of 16°F. Winds will be light at 10mph and gusts of 18.2mph at 12 AM. High humidity with average of 82% is anticipated, the maximum being 93% at 2 AM and 69% being its lowest at 2 PM. Barometric pressure is its highest of 30.39inHg at 8 AM, a lowest point of 30.22inHg at 10 PM with an avg 30.32inHg.
Saint Marys, OH Weather – 12-9 – Overcast
33° / 26°
Overcast
Highs will reach 33°F with lows near 26°F in Saint Marys, where cloud-filled skies are. Winds will be strong at speeds peaking at 23mph and gusts of 33.5mph at 2 PM. High humidity with average of 91% is anticipated, the maximum being 96% at 8 PM and 82% being its lowest at 10 PM. Barometric pressure is its highest of 30.17inHg at 12 AM, a lowest point of 29.74inHg at 10 PM with an avg 29.93inHg.
Saint Marys, OH Weather – 12-10 – Scattered Showers
44° / 29°
Scattered Showers
Saint Marys could see passing showers with daytime highs of 44°F and nighttime lows near 29°F. The chance of rain is 88% with an estimated 0.02in. Snow is likely with a 3% chance. Winds will be strong at speeds peaking at 26mph and gusts of 42.4mph at 5 AM. The humidity will be on the higher side, averaging about 77%, the maximum being 87% at 11 PM and 58% being its lowest at 4 PM. Barometric pressure is its highest of 29.76inHg at 11 PM, a lowest point of 29.45inHg at 2 PM with an avg 29.56inHg.
Saint Marys, OH Weather – 12-11 – Moderate Or Heavy Snow Showers
32° / 24°
Moderate Or Heavy Snow Showers
Saint Marys could see moderate Or Heavy Snow Showers with daytime highs of 32°F and nighttime lows near 24°F. Rainfall predicted to have a 61% chance with an estimated 0.11in. Snow is likely with a 45% chance with an estimated 0.8in. Wind will be moderate, blowing around 12mph on average and gusts of 16.6mph at 12 AM. High humidity with average of 88% is anticipated, the maximum being 98% at 10 PM and 77% being its lowest at 2 PM. Barometric pressure is its highest of 29.99inHg at 11 AM, a lowest point of 29.73inHg at 11 PM with an avg 29.87inHg.
Saint Marys, OH Weather – 12-12 – Moderate Snow
30° / 24°
Moderate Snow
Saint Marys may see moderate Snow, with daytime highs of 30°F and overnight lows near 24°F. The chance of rain is 83% with an estimated 0.07in. Snow is likely with a 75% chance with an estimated 0.5in. Wind will be moderate, blowing around 12mph on average and gusts of 16.3mph at 8 AM. High humidity with average of 95% is anticipated, the maximum being 98% at 1 AM and 87% being its lowest at 2 PM. Barometric pressure is its highest of 30.16inHg at 11 PM, a lowest point of 29.74inHg at 12 AM with an avg 29.96inHg.

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