Dangerous, long-lasting heat remains across the Mid-South to Mid-Mississippi Valley, while heat expands into the Northeast for a brief period on Friday. Strong to isolated severe thunderstorms and heavy rain pose a flash flooding threat from from the southern High Plains east to the Great Lakes. Tropical Depression 12W brings heavy rain to Guam & the Marianas through Saturday. Read More >
6-10 Day Outlook |
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8-14 Day Outlook |
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One Month Outlook |
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Two Week Lead Time Forecast |
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Zero Lead Time Forecast |
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Three Month Outlook |
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Missoula![]() |
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Montana | Idaho |
Historical Map
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Northern Rockies | Northwest Montana |
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Southwest Montana | North Central Idaho |
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Lemhi Idaho |
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January | February |
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March | April |
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May | June |
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July | August |
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September | October |
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November | December |
Sun and Moon
Tides and Currents
Time
The U.S. Naval Observatory (USNO) computes astronomical data. Therefore, the NWS does not record, certify, or authenticate astronomical data. Computed times of sunrise, sunset, moonrise, moonset; and twilight, moon phases and other astronomical data are available from USNO's Astronomical Applications Department (http://www.usno.navy.mil). See http://www.usno.navy.mil/USNO/astronomical-applications/astronomical-information-center/litigation for information on using these data for legal purposes.