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Current Condition
87°
Mainly Cloudy
Heat Index: 92°
Humidity: 59% Dew Point: 72°
Wind: W 7 mph Visibility: 10 mi
Pressure: 1018 mb
Conditions as of 3:30pm
Monday
89°
Daytime highs approaching 89 under mainly sunny skies with a chance for scattered thunderstorms.
30%  
6:18am   8:50pm
Monday Night
69°
Lows around 69 under mainly clear skies with a chance for scattered thunderstorms early.
15%  
6:18am   8:50pm
Tuesday
89°
A blend of clouds and sun with a chance for scattered storms late.
44%  
6:18am   8:50pm

June 17, 2025 Tri-Cities Weather Blog Forecast

Tuesday, June 17

Recently, we’ve popped into a summer weather pattern including well more in the way of showers and storms around the area than we’re used to as we hit the official first day of summer on Saturday. That will be the day we launch all the way into the muggy 90s heat we’re used to in an East Tennessee summer. Welcome to the Tri-Cities Weather Blog forecast through this weekend!

  • Tonight-Some scattered showers and storms still, otherwise partly cloudy. Low 68.
  • Wednesday-Morning fog in spots, but partly to mostly sunny and scattered showers and storms. High 86.
  • Wednesday night-Scattered showers and storms mainly in the evening, otherwise partly cloudy. Low 67.
  • Thursday-Partly cloudy with scattered showers and storms around, ending late. High 84.
  • Friday-Sunny skies after morning fog. High 85.
  • Saturday and Sunday-Sunny and hot. High near 90 Saturday, 92 on Sunday.

The key in the forecast in the next couple of days invoves a “cold” front that will move through on Thursday. Yes, you’ll notice temperatures actually go up from Thursday to Friday. That’s because of fewer clouds, and the front brings briefly lower humidity. That will set the stage for a hot start to summer this weekend.

As it is right now, we’re going to see a good chance of off and on showers and storms between now and Friday. Some days–like today–will feature little rain, others will have more of it. Looks like the more day will be Thurday. That summer front moves through and kicks off lots of rain and thunderstorms.

After that, we’ll see things clear off after some Friday morning fog. Computers indicate deeper heat levels arriving pretty quickly on Saturday, getting us to our first 90 degree reading in a while, and probably the first 90 degree forecast of 2025 on Saturday. We’ll go from there to the low 90s Sunday and probably deep into next week. Pop-up showers and storms (our normal fare this time of year) will come back each afternoon.

This is something we get every summer at some point, so we all know what to do. Make sure the air conditioning works (and if it doesn’t, call now for repairs!), keep refreshments around if you need to be outside, and schedule lots of breaks. In the meantime, spend the next couple days getting indoors when storms approach. Stronger storms could make things interesting Thursday, and I’ll keep an eye on that.

Thanks for checking here for the forecast!

Next 36 Hours

4:00pm
430_day
88°
Clouds and Sun
W 7 mph
5:00pm
430_day
86°
Mostly Sunny
W 6 mph
6:00pm
430_day
86°
Mostly Sunny
W 5 mph
7:00pm
430_day
85°
Mostly Sunny
W 5 mph
8:00pm
430_day
83°
Mostly Sunny
W 4 mph
9:00pm
100_night
79°
Mainly Clear
W 2 mph
10:00pm
100_night
76°
Mainly Clear
S 2 mph
11:00pm
100_night
74°
Mainly Clear
SW 2 mph
12:00am
100_night
72°
Mainly Clear
WSW 1 mph
1:00am
120_night
72°
Mainly Clear
SW 1 mph
2:00am
100_night
72°
Mainly Clear
WSW 1 mph
3:00am
120_night
70°
Mainly Clear
SW 1 mph
4:00am
120_night
70°
Mainly Clear
S 1 mph
5:00am
150_night
68°
Partly Cloudy
S 1 mph
6:00am
150_day
68°
Clouds and Sun
SE 1 mph
7:00am
150_day
70°
Clouds and Sun
S 1 mph
8:00am
150_day
72°
Clouds and Sun
SW 1 mph
9:00am
120_day
74°
Mostly Sunny
SW 2 mph
10:00am
120_day
79°
Mostly Sunny
WSW 2 mph
11:00am
120_day
81°
Clouds and Sun
WSW 4 mph
12:00pm
150_day
83°
Clouds and Sun
WSW 5 mph
1:00pm
150_day
85°
Clouds and Sun
WSW 6 mph
2:00pm
430_day
85°
Clouds and Sun
WSW 7 mph
3:00pm
430_day
86°
Clouds and Sun
W 7 mph
4:00pm
430_day
86°
Clouds and Sun
WNW 6 mph
5:00pm
430_day
86°
Clouds and Sun
W 6 mph
6:00pm
430_day
85°
Clouds and Sun
W 5 mph
7:00pm
430_day
85°
Clouds and Sun
W 4 mph
8:00pm
430_day
83°
Mostly Sunny
W 3 mph
9:00pm
430_night
77°
Partly Cloudy
WNW 2 mph
10:00pm
430_night
74°
Partly Cloudy
WSW 1 mph
11:00pm
430_night
74°
Partly Cloudy
S 1 mph
12:00am
430_night
72°
Partly Cloudy
S 1 mph
1:00am
430_night
72°
Partly Cloudy
S 1 mph
2:00am
150_night
70°
Partly Cloudy
S 1 mph
3:00am
150_night
70°
Partly Cloudy
S 1 mph

7-Day Forecast:

Monday
7/7
430_day
89°
Daytime highs approaching 89 under mainly sunny skies with a chance for scattered thunderstorms. Westerly winds 8 to 15 mph.
30% W 7 mph
Sunrise: 6:18am  Sunset: 8:50pm Moon: Full Moon
30%
W 7 mph
Monday Night
430_night
69°
Lows around 69 under mainly clear skies with a chance for scattered thunderstorms early. Winds turning southwest around 5 mph.
15% WSW 3 mph
15%
WSW 3 mph
Tuesday
7/8
430_day
89°
A blend of clouds and sun with a chance for scattered storms late. High of 89. Winds becoming southwest 5 to 10 mph.
44% SW 4 mph
Sunrise: 6:18am  Sunset: 8:50pm Moon: Full Moon
44%
SW 4 mph
Tuesday Night
430_night
68°
Low of 68 under partly cloudy skies with a chance for scattered thunderstorms. Winds becoming southwest around 5 mph.
27% SW 2 mph
27%
SW 2 mph
Wednesday
7/9
450_day
88°
Scattered thunderstorms likely, otherwise sunshine mixed with clouds at times. High temperatures reach up to 88. Winds turning southwest around 5 mph.
70% SW 2 mph
Sunrise: 6:19am  Sunset: 8:50pm Moon: Full Moon
70%
SW 2 mph
Wednesday Night
450_night
68°
Lows level off around 68 under overcast skies with scattered thunderstorms likely. Winds turning southwest around 5 mph.
64% SW 2 mph
64%
SW 2 mph
Thursday
7/10
450_day
84°
Scattered thunderstorms likely, otherwise overcast. High of 84. Southwest winds around 5 mph.
87% SW 3 mph
Sunrise: 6:19am  Sunset: 8:49pm Moon: Full Moon
87%
SW 3 mph
Thursday Night
430_night
67°
Chance for scattered storms, otherwise cloudy skies. Lows around 67. Winds out of the southwest around 5 mph.
51% SSW 1 mph
51%
SSW 1 mph
Friday
7/11
450_day
85°
Overcast skies with scattered thunderstorms likely. High of 85. Winds out of the southwest around 5 mph.
72% WSW 3 mph
Sunrise: 6:20am  Sunset: 8:49pm Moon: Waning Gibbous
72%
WSW 3 mph
Friday Night
430_night
68°
Mainly cloudy skies with a chance for scattered thunderstorms. Lows around 68. Southwesterly winds around 5 mph.
33% SSW 2 mph
33%
SSW 2 mph
Saturday
7/12
450_day
86°
Scattered thunderstorms likely, otherwise mainly cloudy skies expected. High of 86. Winds out of the southwest 5 to 10 mph.
60% SW 4 mph
Sunrise: 6:21am  Sunset: 8:48pm Moon: Waning Gibbous
60%
SW 4 mph
Saturday Night
430_night
68°
Partly cloudy skies with a chance for scattered storms. Lows level off around 68. West winds around 5 mph.
43% WSW 2 mph
43%
WSW 2 mph
Sunday
7/13
450_day
85°
Overcast skies with scattered thunderstorms likely. High of 85. Southwest winds around 5 mph.
61% WSW 3 mph
Sunrise: 6:21am  Sunset: 8:48pm Moon: Waning Gibbous
61%
WSW 3 mph

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