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St. Mary's Lake, MT Weather Forecast
St. Mary's Lake, MT Weather Forecast Dated: 206 PM Sat Aug 29 2026 (St. Mary's Lake Time)
Sat, 29th Lo: 12°C53°F Hi: 28°C82°F |
Sunny Saturday, temperatures as high as 82°F28°C, low temperature around 53°F12°C, chance of rain 1%, wind out of the NE 4 mph6 km/h. Barometric pressure 29.8 in1009 mb, visibility 6 mi10 km, humidity 28%. |
Sun, 30th Lo: 7°C44°F Hi: 21°C69°F |
Cloudy Sunday, temperatures as high as 69°F21°C, low temperature around 44°F7°C, chance of rain 8%, wind out of the WSW 11 mph17 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 28%. |
| Mon, 31st Lo: 6°C43°F Hi: 26°C79°F |
Sunny Monday, temperatures as high as 79°F26°C, low temperature around 43°F6°C, chance of rain 1%, wind out of the SSW 5 mph8 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 31%. |
Tue, 1st Lo: 10°C51°F Hi: 30°C86°F |
Overcast Tuesday, temperatures as high as 86°F30°C, low temperature around 51°F10°C, chance of rain 9%, wind out of the SSE 2 mph3 km/h. Barometric pressure 29.74 in1007 mb, visibility 6 mi10 km, humidity 22%. |
Wed, 2nd Lo: 9°C49°F Hi: 23°C73°F |
Thundery outbreaks in nearby Wednesday, temperatures as high as 73°F23°C, low temperature around 49°F9°C, chance of rain 7%, wind out of the N 4 mph7 km/h. Barometric pressure 29.74 in1007 mb, visibility 6 mi9 km, humidity 36%. |
| Thu, 3rd Lo: 9°C48°F Hi: 19°C67°F |
Thundery outbreaks in nearby Thursday, temperatures as high as 67°F19°C, low temperature around 48°F9°C, chance of rain 17%, wind out of the SW 1 mph2 km/h. Barometric pressure 29.8 in1009 mb, visibility 6 mi9 km, humidity 55%. |
| Fri, 4th Lo: 6°C43°F Hi: 19°C66°F |
Cloudy Friday, temperatures as high as 66°F19°C, low temperature around 43°F6°C, chance of rain 8%, wind out of the NNE 4 mph6 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 54%. |
Sat, 5th Lo: 8°C46°F Hi: 12°C54°F |
Light rain shower Saturday, temperatures as high as 54°F12°C, low temperature around 46°F8°C, chance of rain 57%, wind out of the NW 4 mph7 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 87%. |
Sun, 6th Lo: 5°C41°F Hi: 17°C62°F |
Partly Cloudy Sunday, temperatures as high as 62°F17°C, low temperature around 41°F5°C, chance of rain 9%, wind out of the N 4 mph7 km/h. Barometric pressure 30.15 in1021 mb, visibility 6 mi10 km, humidity 63%. |
| Mon, 7th Lo: 7°C45°F Hi: 18°C64°F |
Cloudy Monday, temperatures as high as 64°F18°C, low temperature around 45°F7°C, chance of rain 9%, wind out of the N 5 mph8 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 55%. |
| Tue, 8th Lo: 6°C43°F Hi: 9°C49°F |
Light rain shower Tuesday, temperatures as high as 49°F9°C, low temperature around 43°F6°C, chance of rain 59%, wind out of the N 5 mph8 km/h. Barometric pressure 30.3 in1026 mb, visibility 6 mi10 km, humidity 92%. |
| Wed, 9th Lo: 4°C40°F Hi: 16°C61°F |
Cloudy Wednesday, temperatures as high as 61°F16°C, low temperature around 40°F4°C, chance of rain 11%, wind out of the NNE 3 mph5 km/h. Barometric pressure 30.27 in1025 mb, visibility 6 mi10 km, humidity 65%. |
| Thu, 10th Lo: 7°C44°F Hi: 21°C71°F |
Sunny Thursday, temperatures as high as 71°F21°C, low temperature around 44°F7°C, chance of rain 1%, wind out of the NNE 4 mph6 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 44%. |
| Fri, 11th Lo: 10°C49°F Hi: 22°C72°F |
Overcast Friday, temperatures as high as 72°F22°C, low temperature around 49°F10°C, chance of rain 10%, wind out of the N 5 mph9 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 38%. |
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