Install
Lyndon, VT 05849 Weather
Current conditions
Observed at St. Johnsbury - Fairbanks · 1 hr ago
Forecast
10-day-
Tonight
Patchy fog between 1am and 3am, then patchy freezing fog. Mostly clear, with a low around 30. North wind around 3 mph.
-
Wednesday
Patchy freezing fog before 9am. Sunny, with a high near 55. Northeast wind around 1 mph.
-
Wednesday Night
Partly cloudy, with a low around 32. North wind around 2 mph.
National Weather Service forecast updated 3 hrs ago.
Hourly
Hourly forecast- Now36°
- 11 PM36°
- Wed12 AM35°
- 1 AM34°
- 2 AM33°
- 3 AM33°
- 4 AM31°
- 5 AM31°
- 6 AM30°
- 7 AM30°
- 8 AM31°
- 9 AM34°
- 10 AM40°
- 11 AM45°
- 12 PM50°
- 1 PM53°
- 2 PM54°
- 3 PM55°
- 4 PM54°
- 5 PM53°
- 6 PM49°
- 7 PM44°
- 8 PM40°
- 9 PM38°
10-day forecast
Details- TonightOct 20Mostly Clear then Patchy Fog30°
- WedOct 21Patchy Freezing Fog then Sunny32°55°
- ThuOct 22Sunny29°50°
- FriOct 23Sunny26°45°
- SatOct 24Sunny29°51°
- SunOct 25Sunny36°57°
- MonOct 26Mostly Sunny13%37°57°
- TueOct 27Partly Sunny13%47°
- WedOct 28Cloudy26°39°
- ThuOct 29Cloudy30°49°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Lyndon
More weather news-
When Do Clocks Go Back in 2026? US Fall Time Change Date, Time and What To KnowThe change affects daily routines, travel schedules, and the amount of daylight people get after work. Although President Donald Trump has called for an end to clock changes, the current system remains in place for most…
-
Hyperlocal elevation snow accumulation forecast Friday night into SaturdayBURLINGTON, Vt. (WCAX) - Today’s strong blustery winds and rainfall have tapered a bit and that is due to the passage of a strong cold front. This will be our first significant autumn cold front that brings more…
-
PHOTOS: First snowflakes fly around VermontVTDigger Member-supported journalism. Informing and engaging Vermont. This year, VTDigger is teaming up with Henry’s Weather Channel to help answer the annual question of when and where peak foliage will make its…
-
A Vermont Woolly Bear Calls for a Mild Winter. NOAA Mostly Agrees.The federal government released its official winter forecast on Thursday. Compass Vermont got a second opinion from a caterpillar. We found him crossing a patch of pine needles on a Vermont access road this week. He’s a…
-
After a stormy week, cold arrives and much of Vermont passes peak foliageThis year, VTDigger is teaming up with Henry’s Weather Channel to help answer the annual question of when and where peak foliage will make its appearance across the state. After a stormy week, trees have shed their…
-
Near-record cold with wintry conditions across Vermont Friday into SaturdayBURLINGTON, Vt. (WCAX) - This upcoming weekend will be our first widespread taste of winter across northern New York and Vermont. Mount Mansfield picked up the season’s first flakes last week, but accumulating snow has…
-
Record rainfall soaks parts of northern New York and Vermont TuesdayBURLINGTON, Vt. (WCAX) - While recent memory reminds us that October can bring crisp dry fall days, Tuesday deviated with widespread steady rain across northern New York and Vermont. Rainfall was not just soggy — it was…
Air quality
Forecast
- TueGood
- WedGood
Coos County, NH reporting area. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlySaint Johnsbury, records since 1894. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Barre 55 km
- Montpelier 56 km
- St Johnsbury 10 km
- Saint Johnsbury 10 km
- Morristown 54 km
- Haverhill 52 km
- Newport 53 km
- Littleton 26 km
- Deerfield 40 km
- Stowe 58 km
- Stanstead 59 km
- Northumberland 32 km
Forecasters' discussion
From the National Weather Service office in BTV, issued 3 hrs ago
What Has Changed
As of 218 PM EDT Tuesday...
No significant changes to the current forecast.
Key Messages
As of 218 PM EDT Tuesday...
1. Large ridge of surface high pressure will keep conditions dry with seasonable temperatures through late week.
2. Dry and seasonable conditions continue through the beginning of next week.
Discussion
As of 218 PM EDT Tuesday...
KEY MESSAGE 1: Period of dry weather continues for the north country as large ridge of surface high pressure nudges into our area out of Canada. Lots of dry air remains in place, and winds are out of the north following the passage of a weak surface boundary this morning. After afternoon ranging highs ranging through the 50s today, minimum temperatures overnight will dip into the mid 20s to mid 30s, warmest along Lake Champlain where the temperatures will be closer to 40. Ideal radiational cooling conditions, will also lead to some patchy fog developing in the typically fog prone spots. Surface high will retreat to the north and east of our area tomorrow as a Nor'easter meanders off the east coast. Wednesday night a weak cold front will cross our area, bringing colder conditions for Thursday and Friday to close out the work week, with another surface ridge of high pressure building into our area from the northwest. Maximum temperatures on Friday will struggle to get out of the 40s. Winds will also be brisk out of the north, especially on Thursday.
KEY MESSAGE 2: A classic stretch of fall weather will continue this weekend and into the beginning of next week. Surface high pressure will be centered almost directly overhead over the weekend, leading to clear skies, light winds and highs in the 50s. Most mornings will be frosty with lows in the 20s and 30s. A moisture starved cold front moves through Monday and Monday night and while a brief sprinkle or mountain flurry is possible during its passage, it will be pretty much completely dry. Temperatures rise to around 60 Monday, before highs drop back into the 50s and potentially upper 40s for Tuesday.
Aviation
Through 00Z Thursday...Mainly VFR conditions are expected under clear skies. Some fog is possible this evening, given the favorable radiational cooling. However, dry conditions may prevent fog formation. Trends for fog have decreased some, and have thus trended fog in TEMPOs towards 3 or 4SM with the highest probabilities at KMPV and KMSS, with the primary window between 09z-12z. Light and variable flow, with terrain southeasterly winds at KRUT will remain through about 12-14z, and then trend increasingly variable after 14z.
Outlook...
Wednesday Night: VFR. NO SIG WX. Thursday: VFR. NO SIG WX. Thursday Night: VFR. NO SIG WX. Friday: VFR. NO SIG WX. Friday Night: VFR. NO SIG WX. Saturday: VFR. NO SIG WX. Saturday Night: VFR. NO SIG WX. Sunday: VFR. NO SIG WX.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.