Summary - The week ahead -
...Severe thunderstorms will threaten this afternoon, and Wednesday afternoon, with highs approaching 90 both days. Cooler weather will arrive on Thursday with highs around 80 through the weekend. Another chance of showers and thunderstorms will come Sunday.

Near term - through 9pm this evening -
...Clouds this morning will give way this afternoon. Temperatures starting out in the mid 60's will be able to rise into the upper 80's to near 90 with the help of 850mb temps around 20C. There will be a lot of moisture to work with in the low levels of the atmosphere. Dew points are forecasted by all models to reach/exceed 70 this afternoon. Convective temperatures of 30C will be reached by 2pm. Expect thunderstorm development starting around noon to the north and west. These storms will likely reach severe criteria. Keene can expect action beginning as early as 2pm and lasting through 10pm. PWATs over 2" all but guarentees torrential rains. Lifted indices below -4, possibly as low as -9 with CAPE over 2000, possibly over 3500 will mean severe hail likely with many storms this afternoon. Steep lapse rates will create strong winds over 60mph in many storms as well. Wind profiles do not look as promising as yesterday, but still strong enough for possibly an isolated tornado.

Short term - Tonight through Wednesday night -
...Coming up

Long term - Tuesday through Monday 7/16 -
...Coming up

&&

Forecaster: SL
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Weather history:

7/10 in Keene, NH:

normal high is 84, record is 96 (set in 1988)
normal low is 57, record is 39 (set in 1963)

Astronomy:

Sunrise: 5:19AM Sunset: 8:29PM
Moonrise: 1:16AM Moonset: 5:07PM
-Waning Crescent, 20% is illuminated
Length of visible light: 16 hours 18 minutes
Length of day: 15 hours 09 minutes
-Tomorrow will be 1 minute 15 seconds shorter

7/10 across the United States:

1913 - The mercury hit 134 degrees at Greenland Ranch in Death Valley, CA, the hottest reading of record for the North American continent. Sandstorm conditions accompanied the heat. The high the previous day was 129 degrees, following a morning low of 93 degrees. (David Ludlum) (The Weather Channel)

1926 - A lightning bolt struck an ammunition magazine in northern New Jersey, and a big red ball of fire leaped into the air triggering a series of explosions. All buildings within a half mile radius were destroyed, and debris fell as far as twenty-two miles away. Sixteen persons were killed, and property damage was seventy million dollars. (David Ludlum)

1936 - Afternoon highs of 112 degrees at Martinsburg, WV, 109 degrees at Cumberland, MD, and Frederick, MD, 110 degrees at Runyon, NJ, and 111 degrees at Phoenixville, PA, established all-time record highs for those four states. It was the hottest day of record for the Middle Atlantic Coast Region. (The Weather Channel)

1979 - The temperature at El Paso, TX, hit 112 degrees, an all-time record for that location. The next day was 110 degrees. (The Weather Channel)

1980 - The temperature in downtown Kansas City, MO, hit 109 degrees, following a sultry overnight low of 89 degrees. The daily low of 89 degrees was the warmest of record for Kansas City, and overall it was the hottest July day of record. It was the seventh of a record seventeen consecutive days of 100 degree heat, and the mean temperature for the month of 90.2 degrees was also an all-time record for Kansas City.

1987 - An early morning thunderstorm in Minnesota produced wind gusts to 91 mph at Waseca. Later that day, thunderstorms in South Dakota produced wind gusts to 81 mph at Ipswitch, and baseball size hail near Hayes and Capa. (The National Weather Summary) (Storm Data)

1988 - Thunderstorms brought welcome rains to parts of the central U.S., but produced severe weather along the New England coast, in the Great Lakes Region, in North Carolina, and in the Southern Plateau Region. Strong thunderstorm winds gusting to 80 mph at Bullfrog, UT, sank three boats on Lake Powell. (Storm Data) (The National Weather Summary)

1989 - Severe thunderstorms spawned seventeen tornadoes in the northeastern U.S. A powerful (F-4) tornado struck Hamden CT and New Haven, CT, causing 100 million dollars damage at Hamden, and another 20 million dollars damage around New Haven. Forty persons were injured in the tornado. Seventy persons were injured in a tornado which traveled from Watertown, CT, to Waterbury, CT, and another powerful (F-4) tornado touched down near Ames NY injuring twenty persons along its 43.5 mile track. It was the strongest tornado of record for eastern New York State. (Storm Data) (The National Weather Summary)

Yesterday (7/9):
Keene: H 88, L 63