Weather in St. Marys, United States 🇺🇸
St. Marys currently sits at 25°C, sunny, feeling like 28°C. Expect 91% humidity and winds of about 13 km/h, and the UV index is 2 (low). Across the coming days, St. Marys should see roughly 22°C to 37°C. ⚠️ Extreme Heat Watch issued August 13 at 2:27AM EDT until August 14 at 8:00PM EDT by NWS Jacksonville FL
Hourly Forecast for St. Marys
14-Day Forecast for St. Marys
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Additional Forecasts for St. Marys
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Best Time to Be Outside in St. Marys Today
The most comfortable window in St. Marys today looks like 18:00 to 21:00, when it is around 31°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in St. Marys
What is the temperature in St. Marys right now?
The current temperature in St. Marys is 25°C (77°F), sunny (feels like 28°C).
What's the weather like in St. Marys right now?
Current weather in St. Marys: Sunny, humidity 91%, wind 13 km/h WNW.
What is today's forecast for St. Marys?
Today in St. Marys: high 34°C, low 22°C, sunny. Chance of rain: 17%.
What is the 7-day weather forecast for St. Marys?
Daily highs and lows for St. Marys:
- 2026-08-13: 34°C / 22°C
- 2026-08-14: 37°C / 26°C
- 2026-08-15: 35°C / 25°C
- 2026-08-16: 38°C / 25°C
- 2026-08-17: 37°C / 26°C
- 2026-08-18: 37°C / 26°C
- 2026-08-19: 36°C / 22°C
Is it going to rain in St. Marys today?
There is a 17% chance of rain in St. Marys today. Total expected precipitation: 0.1 mm.
What is the wind speed in St. Marys right now?
Wind in St. Marys is currently 13 km/h (8 mph) from the WNW.
What is the UV index in St. Marys right now?
The UV index in St. Marys is currently 1.5 (low). Sun protection is recommended when the index is 3 or higher.
