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Summit Lake, MT Weather Forecast
Summit Lake, MT Weather Forecast Dated: 1138 PM Mon Aug 24 2026 (Summit Lake Time)
Mon, 24th Lo: 10°C50°F Hi: 27°C80°F |
Sunny Monday, temperatures as high as 80°F27°C, low temperature around 50°F10°C, chance of rain 1%, wind out of the SW 6 mph10 km/h. Barometric pressure 30.06 in1018 mb, visibility 6 mi10 km, humidity 39%. |
| Tue, 25th Lo: 13°C55°F Hi: 30°C85°F |
Sunny Tuesday, temperatures as high as 85°F30°C, low temperature around 55°F13°C, chance of rain 2%, wind out of the ESE 7 mph12 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 32%. |
| Wed, 26th Lo: 12°C54°F Hi: 30°C86°F |
Sunny Wednesday, temperatures as high as 86°F30°C, low temperature around 54°F12°C, chance of rain 57%, wind out of the SE 14 mph22 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 45%. |
Thu, 27th Lo: 11°C52°F Hi: 29°C85°F |
Overcast Thursday, temperatures as high as 85°F29°C, low temperature around 52°F11°C, chance of rain 17%, wind out of the S 10 mph15 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 50%. |
| Fri, 28th Lo: 10°C49°F Hi: 23°C74°F |
Sunny Friday, temperatures as high as 74°F23°C, low temperature around 49°F10°C, chance of rain 2%, wind out of the W 11 mph18 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 40%. |
Sat, 29th Lo: 8°C47°F Hi: 21°C70°F |
Cloudy Saturday, temperatures as high as 70°F21°C, low temperature around 47°F8°C, chance of rain 4%, wind out of the WSW 12 mph19 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 35%. |
| Sun, 30th Lo: 5°C42°F Hi: 21°C70°F |
Sunny Sunday, temperatures as high as 70°F21°C, low temperature around 42°F5°C, chance of rain 1%, wind out of the SW 6 mph10 km/h. Barometric pressure 29.85 in1011 mb, visibility 6 mi10 km, humidity 33%. |
| Mon, 31st Lo: 8°C47°F Hi: 24°C75°F |
Sunny Monday, temperatures as high as 75°F24°C, low temperature around 47°F8°C, chance of rain 3%, wind out of the SSW 5 mph8 km/h. Barometric pressure 29.77 in1008 mb, visibility 6 mi10 km, humidity 33%. |
| Tue, 1st Lo: 7°C44°F Hi: 15°C60°F |
Overcast Tuesday, temperatures as high as 60°F15°C, low temperature around 44°F7°C, chance of rain 36%, wind out of the W 14 mph22 km/h. Barometric pressure 29.8 in1009 mb, visibility 6 mi10 km, humidity 48%. |
Wed, 2nd Lo: 6°C42°F Hi: 11°C51°F |
Chance of showers Wednesday, temperatures as high as 51°F11°C, low temperature around 42°F6°C, chance of rain 45%, wind out of the WSW 9 mph14 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 66%. |
| Thu, 3rd Lo: 3°C37°F Hi: 11°C52°F |
Chance of showers Thursday, temperatures as high as 52°F11°C, low temperature around 37°F3°C, chance of rain 77%, wind out of the WSW 8 mph13 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 75%. |
| Fri, 4th Lo: 1°C34°F Hi: 9°C47°F |
Chance of showers Friday, temperatures as high as 47°F9°C, low temperature around 34°F1°C, chance of rain 80%, wind out of the NE 4 mph7 km/h. Barometric pressure 30.09 in1019 mb, visibility 5 mi8 km, humidity 85%. |
| Sat, 5th Lo: -0°C32°F Hi: 15°C59°F |
Sunny Saturday, temperatures as high as 59°F15°C, low temperature around 32°F-0°C, chance of rain 37%, wind out of the S 8 mph12 km/h. Barometric pressure 30.18 in1022 mb, visibility 4 mi7 km, humidity 64%. |
| Sun, 6th Lo: 3°C37°F Hi: 20°C67°F |
Sunny Sunday, temperatures as high as 67°F20°C, low temperature around 37°F3°C, chance of rain 1%, wind out of the SSW 7 mph11 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 41%. |
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