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Current Condition
83°
Mainly Clear
Heat Index: 85°
Humidity: 64% Dew Point: 70°
Wind: SE 9 mph Visibility: 10 mi
Pressure: 1016 mb
Conditions as of 5:30pm
Tonight
69°
Overnight lows approaching 69 under partly cloudy skies with a chance for scattered storms.
50%  
6:14am   8:51pm
Tuesday
83°
Highs level off around 83 under overcast skies with scattered thunderstorms likely.
85%  
6:14am   8:51pm
Tuesday Night
67°
Scattered thunderstorms likely, otherwise cloudy.
51%  
6:14am   8:51pm

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

6:00pm
430_day
85°
Clouds and Sun
SSW 5 mph
7:00pm
430_day
83°
Clouds and Sun
S 5 mph
8:00pm
430_day
79°
Clouds and Sun
S 4 mph
9:00pm
430_night
76°
Partly Cloudy
SW 3 mph
10:00pm
430_night
74°
Partly Cloudy
SSW 2 mph
11:00pm
430_night
72°
Partly Cloudy
SSW 2 mph
12:00am
430_night
72°
Partly Cloudy
SSW 2 mph
1:00am
430_night
72°
Partly Cloudy
SSW 2 mph
2:00am
250_night
70°
Mainly Cloudy
SSW 2 mph
3:00am
250_night
70°
Mainly Cloudy
S 2 mph
4:00am
230_night
70°
Partly Cloudy
SSW 2 mph
5:00am
250_night
70°
Mainly Cloudy
SSW 2 mph
6:00am
250_day
70°
Mainly Cloudy
SW 2 mph
7:00am
190_day
68°
Mainly Cloudy
SSW 2 mph
8:00am
450_day
70°
Mainly Cloudy
SW 2 mph
9:00am
450_day
70°
Mainly Cloudy
WSW 2 mph
10:00am
450_day
72°
Cloudy
SW 2 mph
11:00am
450_day
74°
Mainly Cloudy
WSW 4 mph
12:00pm
450_day
76°
Mainly Cloudy
WSW 4 mph
1:00pm
430_day
79°
Clouds and Sun
WSW 5 mph
2:00pm
430_day
79°
Clouds and Sun
WSW 5 mph
3:00pm
450_day
81°
Mainly Cloudy
WSW 5 mph
4:00pm
430_day
81°
Clouds and Sun
W 5 mph
5:00pm
450_day
79°
Mainly Cloudy
W 5 mph
6:00pm
450_day
79°
Mainly Cloudy
SW 4 mph
7:00pm
450_day
79°
Mainly Cloudy
SW 3 mph
8:00pm
430_day
76°
Clouds and Sun
WSW 3 mph
9:00pm
450_night
72°
Mainly Cloudy
SSW 2 mph
10:00pm
450_night
70°
Mainly Cloudy
SSW 1 mph
11:00pm
450_night
70°
Mainly Cloudy
S 1 mph
12:00am
450_night
70°
Mainly Cloudy
S 1 mph
1:00am
450_night
70°
Mainly Cloudy
SSW 1 mph
2:00am
190_night
68°
Mainly Cloudy
SW 1 mph
3:00am
190_night
67°
Mainly Cloudy
SW 1 mph
4:00am
190_night
67°
Mainly Cloudy
WSW 1 mph
5:00am
190_night
67°
Cloudy
WSW 1 mph

7-Day Forecast:

Tonight
430_night
69°
Overnight lows approaching 69 under partly cloudy skies with a chance for scattered storms. South winds around 5 mph.
50% SSW 3 mph
50%
SSW 3 mph
Tuesday
7/1
450_day
83°
Highs level off around 83 under overcast skies with scattered thunderstorms likely. Winds turning southwest around 5 mph.
85% SW 3 mph
Sunrise: 6:14am  Sunset: 8:51pm Moon: Quarter Moon
85%
SW 3 mph
Tuesday Night
450_night
67°
Scattered thunderstorms likely, otherwise cloudy. Low of 67. Winds out of the southwest around 5 mph.
51% SW 2 mph
51%
SW 2 mph
Wednesday
7/2
170_day
85°
Mainly cloudy skies with highs around 85. Winds becoming northwest around 5 mph.
14% WNW 2 mph
Sunrise: 6:15am  Sunset: 8:51pm Moon: Quarter Moon
14%
WNW 2 mph
Wednesday Night
120_night
63°
Mainly clear with lows around 63. Winds turning north around 5 mph.
3% NNW 2 mph
3%
NNW 2 mph
Thursday
7/3
120_day
86°
Mainly clear skies with highs around 86. Northerly winds around 5 mph.
4% NNE 1 mph
Sunrise: 6:15am  Sunset: 8:51pm Moon: Waxing Gibbous
4%
NNE 1 mph
Thursday Night
120_night
64°
Overnight lows approaching 64 under mainly clear skies. Winds out of the northeast around 5 mph.
3% NNE 1 mph
3%
NNE 1 mph
Friday
7/4
120_day
89°
High of 89 under mainly clear skies. Northeast winds around 5 mph.
8% NE 1 mph
Sunrise: 6:16am  Sunset: 8:51pm Moon: Waxing Gibbous
8%
NE 1 mph
Friday Night
120_night
66°
Mainly clear skies with overnight lows approaching 66. Winds out of the northeast around 5 mph.
4% NE 1 mph
4%
NE 1 mph
Saturday
7/5
150_day
90°
A blend of clouds and sun with daytime highs approaching 90. Winds out of the south around 5 mph.
12% S 2 mph
Sunrise: 6:16am  Sunset: 8:51pm Moon: Waxing Gibbous
12%
S 2 mph
Saturday Night
150_night
68°
Partly cloudy skies with lows around 68. Southeasterly winds around 5 mph.
9% SE 2 mph
9%
SE 2 mph
Sunday
7/6
430_day
90°
Slight chance for scattered storms, otherwise a mix of clouds and sun. Highs level off around 90. Southerly winds around 5 mph.
24% SSW 3 mph
Sunrise: 6:17am  Sunset: 8:50pm Moon: Waxing Gibbous
24%
SSW 3 mph

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