Apex Wx
Fort Kent & the Saint John Valley,
Maine
Weather Information
Member APRSWXNET/CWOP & CWOP Programs
Data source: Davis Instruments Vantage Pro 2 Personal Weather Station | Rain gauge not heated in winter.
Normal Low: 10° | Record Low: -29° (1967)
Data source: NOAA SC-ACIS NWS Caribou climate data
Moon Phase: 🌘 Waning Crescent → 🌑 New Moon @ 9:23 pm Wed. 18 Mar 26
Updated March 18 at 8:15 am EDT
Sunny but much cooler conditions are expected today, with highs in the mid- to upper 10s and a brisk west wind of 5 to 10 mph with gusts up to 25 mph pushing wind chill values into the -5 to -15 degree range across northern Maine. Tonight will start partly cloudy before becoming mostly cloudy, with cold lows in the 5 to 10 degree range as light winds shift from the southwest to the southeast after midnight.
Thursday turns partly sunny and not as cold, with highs in the mid-30s and south winds increasing to 5 to 10 mph with gusts up to 25 mph. Thursday night will be mostly cloudy with a slight chance of snow in the evening and a better chance after midnight, though little or no accumulation is expected, with lows in the upper 10s to lower 20s. On Friday, partly sunny skies continue with a chance of morning snow and little or no accumulation, while highs reach the upper 30s with southwest winds of 5 to 10 mph and gusts up to 20 mph. Friday night will be mostly cloudy with a 40 percent chance of snow and lows around 20 degrees.
Snow will continue through daybreak Saturday, and even as slightly milder air arrives, northern areas are likely to hold onto mostly snow or a rain-snow mix through much of the day. By Saturday afternoon, a mix may develop at times, but snow should remain the dominant type, especially toward the Saint John Valley. Overall, around 1 to 3 inches of accumulation is possible before precipitation tapers off Saturday evening.
There is still some uncertainty on how quickly the system moves out. Some guidance suggests snow or a mix could linger into early Sunday morning before ending. Another system may approach late Sunday night into Monday with a chance for more precipitation, although there is also a possibility that drier weather settles in for the start of next week.
On Saturday, there is a chance of snow in the morning, followed by snow becoming likely and mixing with rain during the afternoon, with little or no snow accumulation expected and highs in the upper 30s. Saturday night will bring rain likely in the evening, then changing to snow overnight, with lows in the lower 20s.
Monday will be sunny and colder, with highs in the upper 20s, followed by a mostly clear and cold Monday night with lows around 10 above zero. On Tuesday, expect mostly sunny skies with highs in the mid-30s, while Tuesday night will turn mostly cloudy with lows in the mid- to upper 10s.
An unusually early and intense heatwave is building across the western United States and will spread into the Rockies and Great Plains through the end of the week, bringing temperatures more typical of summer than spring. Highs will surge into the 80s, 90s, and even 100s in parts of the Desert Southwest, with some areas potentially setting record highs for March. At the same time, chilly conditions across the eastern U.S., including recent sub-freezing temperatures along the Gulf Coast, will gradually ease as warmer air returns. Elsewhere, wet weather will persist in the Pacific Northwest with periods of rain, while a band of light snow moves through the Midwest and into the Great Lakes, followed by a mix of rain and snow later this week.
Quiet Weather Nationwide
with No Thunderstorms Expected
No thunderstorms are expected
across the country through tonight as a
calm and stable weather pattern remains
in place. Dry air covering much of the
United States will prevent storm
development, leading to generally quiet
conditions from coast to coast. A large
area of high pressure over the Southeast
and along the East Coast will help keep
skies mostly clear and conditions
settled, while a broad weather system
over the eastern U.S. maintains a steady
but non-stormy pattern. Overall, the
atmosphere will remain unfavorable for
thunderstorms through early Wednesday,
allowing for a peaceful stretch of
weather nationwide.
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🌧️Excessive Rainfall Outlook
🌧️
Learn more about Excessive Rainfall Risk Categories
Periods of moderate to occasionally heavy rain will continue across western Washington, especially over the Olympic Peninsula and Northern Cascades, where 1 to 3 inches of rainfall is expected. While areas like Seattle may see lighter amounts, the surrounding terrain will take the brunt of the rain. Snow levels remain high, causing additional snowmelt in the mountains, which will add to runoff flowing into rivers and streams. This combination of rain and melting snow may lead to rising water levels and minor flooding, particularly along the Chehalis River, where flooding is already occurring. With wet conditions expected to persist, the risk of localized flooding will continue through the period.
Learn more about Fire Weather Outlooks
Critical Fire Weather Threat Develops Across the Central High Plains
Dry, windy conditions will create dangerous fire weather across parts of southeastern Wyoming, western Nebraska, and northern Colorado today. Gusty west to northwest winds of 20 to 30 mph combined with very low humidity levels will allow fires to start easily and spread quickly. These conditions are being driven by a strong weather pattern over the western U.S. that is funneling dry air and increasing winds along the eastern slopes of the Rockies. The greatest concern will be near and east of the Laramie Range and into the North Platte River Valley, where terrain effects may further strengthen winds. Ongoing dry conditions and cured vegetation will add to the risk. Surrounding areas may also see elevated fire danger, though not as intense.
Today's Fire Weather Outlook
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Apex Wx is a private weather information service unaffiliated with NOAA/NWS operated by Joseph Becker, PhD. Dr. Becker holds a certification in weather forecasting from Penn State University and is a trained NWS Storm Spotter.
Credits
- Sun/Moon data from timeanddate.com.
- NOAA Warning Banner provided by WillyWeather.com.
- Additional Archived Weather Data from Apex Wx is at the University of Utah's MesoWest
- Apex Wx logo by Joanna Becker ©2016 (Visit Bushi and Brush Arts Dojo)
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US Visible/Infrared Satellite
St. John River at Dickey











































