Near term - through 9pm this evening -
...High level clouds have already taken over from the north and west. The only clear skies in New England can be found in Connecticut. A cold front is currently entering New York State with convection out ahead of it. Convective temperatures of 29 to 30C will be reached fairly quickly. Thunderstorms will begin going up between 10am and noon across New York state into northern VT, NH and ME. Wind fields are generally weak, which will be the main inhibiting factor for severe weather. Otherwise, dew points are in the 60s and will be approaching 70 through the morning, with lifted indices already dropping to -3 and should fall to -6 by noontime in parts of SNE. PWATS of 1.8 to 2.1 will assist in the development of heavy downpours in any thunderstorm. All in all, not expecting a huge wind or hail day, but heavy rain and lightning will be a big threat through the afternoon. In Keene, thunderstorms reach the area by 1pm and the cold front passes by 3pm. Showers and isolated thunderstorms will continue through the evening with left over water and instability in the air.

Temperatures started out in the mid 60s to mid 70s across the region. In Keene, a low of 66 was recorded which has since then risen to 70 degrees. 850mb temperatures will be the same as yesterday, near 20C, however with cloud cover, surface temperatures will struggle to reach the mid 80s before storms roll in. The best chance for 90+ highs will be in Connecticut (sun this morning), and RI, eastern MA, and eastern NH (late front arrival).

Temperatures will be beaten down to around 70 this afternoon after storm passage, and into the 60s by the evening.

Short term - Tonight through Friday night -
...A chance of showers will move east through the evening, clearing Keene for good by 9pm. Partly cloudy skies will take over, and temperatures will drop into the lower 50's. North winds will pick up with gusts near 20mph.

Friday, high pressure over the Great Lakes takes control of the weather. Temperatures will reach the mid 70's under mostly sunny skies with dew points in the mid to upper 40's.

Clear skies Friday Night. 850mb temperatures below 10C, and lows dropping into the mid to upper 40's, with lifted indices around +10 (very stable).

Long term - Saturday through Wednesday 7/4 -
...Low pressure will move through Quebec Friday Night, possibly grazing the region on Saturday. There is some potential for isolated thunderstorms on Saturday. An anomalous cold pool at 500mb. This will promote some destabilization of the atmosphere encouraging showers and thunderstorm development, along with possibly some small hail. Threat lingers into Sunday, before trough moves east out of New England. High temperatures will reach the mid to upper 70s on Saturday out ahead of the low, falling back to around 70 for Sunday on the backside of the storm.

Skies clear up again with large high pressure north of the region for Monday and Tuesday. Temperatures will be on a slow rising trend, reaching the mid to upper 70's again by Tuesday.

On Wednesday (Independence Day), a warm front slides through, with warm advection showers. 850mb temperatures will be back up to 15C to 18C, which will allow highs to reach the upper 70's on Wednesday, and then back into the 80s by the end of next week.

&&

Forecaster: SL
==================================================

Weather history:
6/28 in Keene, NH:
average high is 80, record is 95
average low is 54, record is 37

Astronomy:
Sunrise: 5:12AM Sunset: 8:32PM
Moonrise: 7:26PM Moonset: 2:59AM
Length of visible light: 16 hours 30 minutes
Length of day: 15 hours 20 minutes
-Tomorrow will be 31 seconds shorter

6/28 across the United States:
1788 - The Battle of Monmouth in central New Jersey was fought in sweltering heat. The temperature was 96 degrees in the shade, and there were more casualties from the heat than from bullets. (David Ludlum)

1892 - The temperature at Orogrande UT soared to 116 degrees to establish a record for the state. (Sandra and TI Richard Sanders)

1923 - A massive tornado hit Sandusky, OH, then swept across Lake Erie to strike the town of Lorain. The tornado killed 86 persons and caused twelve million dollars damage. The tornado outbreak that day was the worst of record for the state of Ohio up til that time. (David Ludlum)

1975 - Lee Trevino and two other golfers are struck by lightning at the Western Open golf tournament in Oak Brook, IL. (The Weather Channel)

1980 - The temperature at Wichita Falls, TX, soared to 117 degrees, their hottest reading of record. Daily highs were 110 degrees or above between the 24th of June and the 3rd of July. (The Weather Channel)

1987 - Thunderstorms developing along a cold front produced severe weather in the north central U.S. Thunderstorms in Nebraska produced wind gusts to 70 mph and baseball size hail at Arapahoe, and wind gusts to 80 mph along with baseball size hail at Wolback and Belgrade. Six cities in the Ohio Valley reported record low temperatures for the date, including Cincinnati, OH, with a reading of 50 degrees. (The National Weather Summary) (Storm Data)

1988 - Showers and thunderstorms brought much needed rains to parts of the central U.S. Madison, WI, received 1.67 inches of rain, a record for the date, and their first measurable rain since the Mother's Day tornado outbreak on the 8th of May. (The National Weather Summary)

1989 - Evening thunderstorms deluged Winnfield LA with eleven inches of rain in four hours and fifteen minutes, and Baton Rouge LA reported 11 inches of rain in two days. Totals in west central Louisiana ranged up to 17 inches. Thunderstorms produced severe weather in the Northern High Plains. Two inch hail broke windows in nearly every building at Comstock, NE. Thunderstorms in North Dakta produced two inch hail at Killdeer, and golf ball size hail at Zap. (The National Weather Summary) (Storm Data)
Yesterday (6/27):
Keene: H 91, L 63

.CLIMATE...
RECORD REPORTS HAVE BEEN ISSUED FOR BOS, MQE, PVD, BDL FOR 6/27.

SUMMARY...

BOSTON...TIED RECORD MAXIMUM 96...RECORD HIGH MINIMUM 76.
BLUE HILLS OBSERVATORY...RECORD MAXIMUM 94...RECORD HIGH MINIMUM 73.
PROVIDENCE...TIED HIGH MINIMUM 72. 
HARTFORD...TIED HIGH MINIMUM 72.

PLEASE REFER TO THE LATEST RER(BOS,BDL,PVD) PRODUCTS FOR THE DETAILS.

THE FIRST OFFICIAL HEAT WAVE OF THE YEAR (6/26-6/28 2007?) IS WITHIN 
REACH AT BOSTON, PROVIDENCE HARTFORD, THE BLUE HILLS OBSERVATORY AND 
SEVERAL OTHER LOCATIONS DEPENDING ON WHETHER THE MERCURY EQUALS OR 
EXCEEDS 90 DEGREES TODAY. THE LAST RECENT EXTENDED HEAT WAVE ENDED 
MOST LOCATIONS AUGUST 2 2006.