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Grassy Lake, MT Weather Forecast
Grassy Lake, MT Weather Forecast Dated: 1034 AM Fri Aug 07 2026 (Grassy Lake Time)
Fri, 7th Lo: 9°C48°F Hi: 31°C87°F |
Sunny Friday, temperatures as high as 87°F31°C, low temperature around 48°F9°C, chance of rain 1%, wind out of the W 16 mph26 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 34%. |
| Sat, 8th Lo: 11°C53°F Hi: 30°C86°F |
Sunny Saturday, temperatures as high as 86°F30°C, low temperature around 53°F11°C, chance of rain 1%, wind out of the W 14 mph23 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 21%. |
| Sun, 9th Lo: 10°C51°F Hi: 28°C82°F |
Sunny Sunday, temperatures as high as 82°F28°C, low temperature around 51°F10°C, chance of rain 1%, wind out of the WNW 9 mph14 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 29%. |
| Mon, 10th Lo: 9°C48°F Hi: 28°C83°F |
Sunny Monday, temperatures as high as 83°F28°C, low temperature around 48°F9°C, chance of rain 1%, wind out of the W 10 mph17 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 40%. |
| Tue, 11th Lo: 11°C51°F Hi: 29°C83°F |
Sunny Tuesday, temperatures as high as 83°F29°C, low temperature around 51°F11°C, chance of rain 1%, wind out of the SW 6 mph9 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 30%. |
| Wed, 12th Lo: 11°C52°F Hi: 29°C83°F |
Sunny Wednesday, temperatures as high as 83°F29°C, low temperature around 52°F11°C, chance of rain 1%, wind out of the W 14 mph23 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 31%. |
Thu, 13th Lo: 8°C46°F Hi: 14°C58°F |
Chance of showers Thursday, temperatures as high as 58°F14°C, low temperature around 46°F8°C, chance of rain 19%, wind out of the ENE 9 mph15 km/h. Barometric pressure 30.06 in1018 mb, visibility 6 mi10 km, humidity 76%. |
| Fri, 14th Lo: 8°C46°F Hi: 20°C68°F |
Sunny Friday, temperatures as high as 68°F20°C, low temperature around 46°F8°C, chance of rain 7%, wind out of the ENE 11 mph18 km/h. Barometric pressure 30.18 in1022 mb, visibility 6 mi10 km, humidity 65%. |
| Sat, 15th Lo: 6°C44°F Hi: 27°C81°F |
Sunny Saturday, temperatures as high as 81°F27°C, low temperature around 44°F6°C, chance of rain 2%, wind out of the SW 9 mph14 km/h. Barometric pressure 30.12 in1020 mb, visibility 6 mi10 km, humidity 43%. |
| Sun, 16th Lo: 13°C55°F Hi: 29°C83°F |
Sunny Sunday, temperatures as high as 83°F29°C, low temperature around 55°F13°C, chance of rain 1%, wind out of the WSW 21 mph33 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 31%. |
| Mon, 17th Lo: 11°C53°F Hi: 24°C74°F |
Sunny Monday, temperatures as high as 74°F24°C, low temperature around 53°F11°C, chance of rain 1%, wind out of the W 15 mph23 km/h. Barometric pressure 29.83 in1010 mb, visibility 6 mi10 km, humidity 30%. |
| Tue, 18th Lo: 8°C47°F Hi: 26°C79°F |
Sunny Tuesday, temperatures as high as 79°F26°C, low temperature around 47°F8°C, chance of rain 1%, wind out of the WSW 13 mph20 km/h. Barometric pressure 29.8 in1009 mb, visibility 6 mi10 km, humidity 39%. |
| Wed, 19th Lo: 11°C52°F Hi: 24°C76°F |
Sunny Wednesday, temperatures as high as 76°F24°C, low temperature around 52°F11°C, chance of rain 17%, wind out of the WSW 23 mph38 km/h. Barometric pressure 29.65 in1004 mb, visibility 6 mi10 km, humidity 42%. |
| Thu, 20th Lo: 4°C39°F Hi: 22°C71°F |
Sunny Thursday, temperatures as high as 71°F22°C, low temperature around 39°F4°C, chance of rain 1%, wind out of the SE 14 mph23 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 42%. |
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