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Flagstaff Reservoir, MT Weather Forecast
Flagstaff Reservoir, MT Weather Forecast Dated: 453 PM Tue Aug 18 2026 (Flagstaff Reservoir Time)
Tue, 18th Lo: 13°C55°F Hi: 25°C78°F |
Overcast Tuesday, temperatures as high as 78°F25°C, low temperature around 55°F13°C, chance of rain 8%, wind out of the WSW 16 mph26 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 43%. |
Wed, 19th Lo: 11°C51°F Hi: 26°C80°F |
Sunny Wednesday, temperatures as high as 80°F26°C, low temperature around 51°F11°C, chance of rain 2%, wind out of the W 13 mph22 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 35%. |
| Thu, 20th Lo: 13°C55°F Hi: 30°C86°F |
Sunny Thursday, temperatures as high as 86°F30°C, low temperature around 55°F13°C, wind out of the WNW 15 mph23 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 26%. |
| Fri, 21st Lo: 15°C60°F Hi: 32°C90°F |
Sunny Friday, temperatures as high as 90°F32°C, low temperature around 60°F15°C, chance of rain 1%, wind out of the NW 16 mph25 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 23%. |
| Sat, 22nd Lo: 16°C60°F Hi: 31°C88°F |
Overcast Saturday, temperatures as high as 88°F31°C, low temperature around 60°F16°C, chance of rain 10%, wind out of the WNW 19 mph30 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 32%. |
| Sun, 23rd Lo: 14°C56°F Hi: 29°C84°F |
Sunny Sunday, temperatures as high as 84°F29°C, low temperature around 56°F14°C, chance of rain 1%, wind out of the WNW 16 mph26 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 32%. |
| Mon, 24th Lo: 12°C54°F Hi: 30°C87°F |
Sunny Monday, temperatures as high as 87°F30°C, low temperature around 54°F12°C, chance of rain 1%, wind out of the WNW 11 mph17 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 25%. |
| Tue, 25th Lo: 16°C60°F Hi: 30°C86°F |
Sunny Tuesday, temperatures as high as 86°F30°C, low temperature around 60°F16°C, chance of rain 4%, wind out of the E 19 mph30 km/h. Barometric pressure 30.06 in1018 mb, visibility 6 mi10 km, humidity 23%. |
| Wed, 26th Lo: 11°C52°F Hi: 26°C80°F |
Sunny Wednesday, temperatures as high as 80°F26°C, low temperature around 52°F11°C, chance of rain 1%, wind out of the E 20 mph33 km/h. Barometric pressure 30.15 in1021 mb, visibility 6 mi10 km, humidity 42%. |
Thu, 27th Lo: 11°C52°F Hi: 28°C83°F |
Chance of showers Thursday, temperatures as high as 83°F28°C, low temperature around 52°F11°C, chance of rain 74%, wind out of the SE 9 mph15 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 54%. |
| Fri, 28th Lo: 12°C53°F Hi: 28°C82°F |
Sunny Friday, temperatures as high as 82°F28°C, low temperature around 53°F12°C, chance of rain 36%, wind out of the W 17 mph28 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 61%. |
| Sat, 29th Lo: 13°C56°F Hi: 27°C81°F |
Sunny Saturday, temperatures as high as 81°F27°C, low temperature around 56°F13°C, chance of rain 17%, wind out of the S 12 mph19 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 51%. |
| Sun, 30th Lo: 12°C54°F Hi: 30°C85°F |
Overcast Sunday, temperatures as high as 85°F30°C, low temperature around 54°F12°C, chance of rain 59%, wind out of the ENE 17 mph28 km/h. Barometric pressure 29.85 in1011 mb, visibility 6 mi10 km, humidity 58%. |
| Mon, 31st Lo: 11°C52°F Hi: 28°C82°F |
Sunny Monday, temperatures as high as 82°F28°C, low temperature around 52°F11°C, chance of rain 17%, wind out of the ENE 13 mph21 km/h. Barometric pressure 29.74 in1007 mb, visibility 6 mi10 km, humidity 54%. |
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