Heavy rain and dangerous surf conditions up the East Coast are forecast as tropical storm conditions approach late this week and into the weekend. Meanwhile, strong to severe thunderstorms are expected to impact portions of the central U.S. including heavy to excessive rainfall through Saturday. For the Intermountain region, below normal temperatures and some snow for the higher terrain. 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![]() |
Kalispell![]() |
Butte![]() |
Lewiston![]() |
McCall![]() |
Challis![]() |
Dillon![]() |
Helena![]() |
Cut Bank![]() |
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.