
Weather Forecast
HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT SUNDAY FOR: lower Champlain, lower Connecticut River, and St. Lawrence valleys.
Temperatures and humidities will increase today, with northeast Vermont seeing the strongest impacts.
At a Glance

Today
Morning showers, then partly sunny. HOT in the northwest.
80s

Tonight
Partly to mostly cloudy. Chance of a localized shower or t-storm.
60s to low 70s

Monday
Partly to mostly sunny. HOT and humid.
Upper 80s to mid 90s

Tuesday
HOT and humid. Chance of scattered showers, or a stray thunderstorm.
90s
Eye on the Sky Forecast, June 22, 2025
Weather Forecast
Extended Forecast | Significant/Hazardous Weather | Recreational Forecast | Detailed Discussion | Farm & Garden | Wind by Elevation | Temperature by Elevation
Detailed Forecast
Today:
Rain showers becoming more scattered then diminishing in the afternoon. Chance of a stray thunderstorm. Warm and humid. Highs in the mid to upper 80s. South wind becoming northwest near 10 mph.
Tonight:
Partly cloudy, with more clouds in the north. Chance of an isolated shower or thunderstorm along the Canadian border. Warm and humid, with lows in the upper 60s to low 70s.
Monday:
Partly to mostly sunny. Hot and humid. Highs from the upper 80s to mid 90s, chance of a few upper 90s in the warmest valleys.
Extended Forecast
Monday Night:
Mostly clear. Warm and humid with lows in the low to mid 70s.
Tuesday:
Partly sunny, a few clouds moving in later in the day. Chance of scattered showers, and a stray thunderstorm. Hot, and humid. Highs in the 90s.
Tuesday Night:
Partly cloudy. Chance of a lingering shower in the north, and over the Green Mountains. Warm and muggy. Lows in the 60s.
Wednesday:
Increasing chance of a stray shower or thunderstorm. More comfortable. Highs in the upper 70s in the north, to the mid 80s in the south.
Wednesday Night:
Increasing clouds. Chance of scattered showers, higher in the early morning. Lows in the low to mid 60s.
Thursday:
Mostly cloudy. Good chance of showers. Chance of a thunderstorm in the south in the afternoon. Humid. Highs in the mid 70s to near 80.
Significant/Hazardous Weather
HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT SUNDAY FOR: Western Rutland County.
HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM MONDAY TO 8 PM EDT TUESDAY…Heat index values up to 102 expected, for Eastern
Addison, Orange, Washington, Caledonia, Eastern Chittenden, Eastern Franklin, Lamoille, Eastern Rutland, and Western Windsor Counties.
EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM MONDAY TO 8 PM EDT TUESDAY…Dangerously hot conditions with heat index values up to 105 expected, for Grand Isle, Western Chittenden, and Western Franklin Counties.
The combination of high humidity and hot temperatures Sunday through Tuesday will lead to a couple of uncomfortable days. If you have outdoor plans, be sure to take precautions—stay hydrated, avoid strenuous activity during the hottest part of the day, and take breaks in the shade or indoors when possible.
Recreational Forecast
Mountain Forecast:
Sunday will be the start of a pronounced wave of heat as a dome of high pressure moves over the interior of the nation off of the Atlantic. This supplies increasing temperatures and humidity levels Sunday into the start of the upcoming work week.
Wind At Lower Elevations:
Generally weak winds today, then on Monday winds pick up slightly increasing, becoming west at 5 to 10 mph.
For more details on Lake Champlain, go to: https://forecast.weather.gov/product.php?site=BTV&product=REC&issuedby=BTV
Detailed Discussion
Sunday will be the start of a very pronounced heat wave as a dome of high pressure takes over the eastern half of the nation. This provides an increasingly hot and humid air mass Sunday into the start of the upcoming work week. Expect widespread highs in the 80s on Sunday with increasing dewpoints and in turn increasing humidity levels. Other than the chance of a few lingering showers Sunday morning the day will be dry.
Highs in the 90s over the border valleys become the new norm on Monday and Tuesday as a dome of heat takes firm control of our weather. Some daily record high temperatures will possibly be broken to kick off the new week. Dewpoints in the 70s will push afternoon heat indices around if not above the century mark on Monday and Tuesday. A slow moving front likely sets up somewhere over the region by the middle of the upcoming week and will be the focus for our next period of unsettled conditions.
Farm & Garden
Rainfall Forecast:
A few showers are expected to continue overnight into this morning. Then by midday most of the region will dry out. There is a chance of an isolated shower or thunderstorm mainly over central Vermont in the afternoon, but most of the day will remain dry. Then dry weather will take hold. A high pressure system will develop over the area suppressing any rain through Tuesday. Then on Wednesday a new weather system arrives, switching up the overall weather pattern.
Drying Conditions:
Fair to poor drying continues Sunday morning, then in the afternoon locally fair to good drying is expected. Fair drying will occur in locations that see a few stray showers, mainly in central Vermont. Then on Monday good to excellent drying is expected as temperatures soar. Humidities will remain elevated though rising into the 50s and 60s. Then on Tuesday good to excellent drying is expected once again. Locally fair to poor conditions are expected Tuesday afternoon with the chance of scattered showers and even a thunderstorm.
Frost:
No frost expected.
Wind by Elevation
Wind Speeds | |||
---|---|---|---|
Elevation | Sunday | Monday | Tuesday |
2000ft | Light | W 5 to 10 mph | WNW 10 to 15 mph |
4000ft | W 10 to 15 mph | W > WNW 20 to 30 | WNW 15 to 25 mph |
6000ft | W 15 to 30 mph | W > WNW 25 to 35 | WNW 20 to 35 mph |
Temperature by Elevation
Temperature at Elevation | |||
---|---|---|---|
Elevation | Sunday | Monday | Tuesday |
2000ft | Lower 70s | Near 90 | 80 to 85 |
4000ft | Upper 60s | 70s | 65 to 70 |
6000ft | Mid 60s | 65 to 70 | Near 65 |
Weather Journal
June 22, 2025
Sunrise: 5:07 AM
Sunset: 8:38 PM
Length of the day:
15 hours and 31 minutes
A tremendous hailstorm occurred on this date in 1906. Following some frosty weather 10 days before, thunderstorms in Chelsea, VT produced a swath of hail about 1 mile wide and 10 miles long. In places the hail piled upwards of 1 to 2 feet in depth.
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This program is a partnership between the Fairbanks Museum and Vermont Public.


