Observed 9:35 PM EDT at KRZR

Dayton, TN weather

Clear and 50°10°.

Forecasts agree

Now 50°10°

Clear

Wind: Calm; Light through 10 AM
Dew point: 50°10°; Comfortable
Humidity: 100%; Air 50°10°, dew point 50°10° · fog or dew likely
UV tomorrow: 5Moderate; Moderate 11 AM–5 PM · peak 5
Air quality: 37Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.36 inHg1028 hPa; Rising slowly · +0.03 inHg+1.2 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (50°10° then, 50°10° now)

Good hours for

Low 46°8° tomorrow at 8 AM
Above 60°16° tomorrow by noon
High 72°22° tomorrow at 5 PM
Below 60°16° tomorrow night after 9 PM

TonightDown to 48°9° by 4 AM · Clear
Tomorrow morningUp to 59°15° by 11 AM · Clear
Tomorrow afternoonUp to 72°22° by 5 PM · Clear
Tomorrow nightDown to 47°8° by 5 AM · Clear
Monday morningUp to 59°15° by 11 AM · Clear
Monday afternoonUp to 73°23° by 3 PM · Partly cloudy
Monday nightDown to 59°15° by 9 PM · Cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 10p	Clear	56°13° (likely 56°13° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 4 mph6 km/h	69%	1%	0
Sat 11p	Clear	54°12° (likely 54°12° to 57°14°)	54°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	71%	2%	0
Sun 12a	Clear	52°11° (likely 52°11° to 56°13°)	52°11°	0%	0 mph0 km/h, gusts 3 mph4 km/h	77%	3%	0
Sun 1a	Clear	51°11° (likely 49°9° to 55°13°)	51°11°	0%	0 mph0 km/h, gusts 3 mph5 km/h	80%	8%	0
Sun 2a	Clear	50°10° (likely 48°9° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 3 mph5 km/h	83%	4%	0
Sun 3a	Clear	49°9° (likely 48°9° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	86%	3%	0
Sun 4a	Clear	48°9° (likely 48°9° to 52°11°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	7%	0
Sun 5a	Clear	48°9° (likely 47°8° to 51°11°)	48°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	89%	0%	0
Sun 6a	Clear	48°9° (likely 46°8° to 50°10°)	48°9°	0%	0 mph0 km/h, gusts 2 mph3 km/h	86%	5%	0
Sun 7a	Clear	47°8° (likely 45°7° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 3 mph4 km/h	89%	7%	0
Sun 8a	Sunny	46°8° (likely 44°7° to 49°9°)	46°8°	0%	0 mph0 km/h, gusts 2 mph4 km/h	93%	13%	0
Sun 9a	Sunny	48°9° (likely 47°8° to 52°11°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	14%	0
Sun 10a	Sunny	54°12° (likely 53°12° to 57°14°)	54°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	77%	0%	1
Sun 11a	Sunny	59°15° (likely 58°14° to 62°17°)	59°15°	0%	0 mph0 km/h, gusts 6 mph9 km/h	69%	0%	3
Sun 12p	Sunny	63°17° (likely 62°17° to 65°18°)	63°17°	0%	0 mph0 km/h, gusts 4 mph6 km/h	60%	0%	4
Sun 1p	Sunny	66°19° (likely 65°18° to 68°20°)	66°19°	0%	0 mph0 km/h, gusts 5 mph9 km/h	54%	0%	5
Sun 2p	Sunny	69°21° (likely 67°19° to 69°21°)	69°21°	0%	0 mph0 km/h, gusts 8 mph12 km/h	47%	1%	5
Sun 3p	Sunny	71°22° (likely 69°21° to 71°22°)	71°22°	0%	5 mph8 km/h from NE, gusts 9 mph14 km/h	44%	0%	5
Sun 4p	Sunny	71°22° (likely 70°21° to 72°22°)	71°22°	0%	5 mph8 km/h from NE, gusts 12 mph19 km/h	42%	0%	4
Sun 5p	Sunny	72°22° (likely 69°21° to 72°22°)	72°22°	0%	5 mph8 km/h from NE, gusts 11 mph18 km/h	41%	0%	2
Sun 6p	Sunny	69°21° (likely 67°19° to 69°21°)	69°21°	0%	0 mph0 km/h, gusts 9 mph14 km/h	45%	6%	1
Sun 7p	Clear	65°18° (likely 61°16° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 6 mph10 km/h	54%	3%	0
Sun 8p	Clear	61°16° (likely 58°14° to 62°17°)	61°16°	0%	0 mph0 km/h, gusts 5 mph7 km/h	65%	1%	0
Sun 9p	Clear	56°13° (likely 56°13° to 60°16°)	56°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	74%	26%	0
Sun 10p	Clear	55°13° (likely 54°12° to 58°14°)	55°13°	0%	0 mph0 km/h, gusts 4 mph7 km/h	77%	2%	0
Sun 11p	Clear	53°12° (likely 52°11° to 57°14°)	53°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	80%	1%	0
Mon 12a	Clear	51°11° (likely 51°11° to 56°13°)	51°11°	0%	0 mph0 km/h, gusts 4 mph7 km/h	86%	1%	0
Mon 1a	Clear	50°10° (likely 50°10° to 54°12°)	50°10°	0%	0 mph0 km/h, gusts 4 mph6 km/h	86%	4%	0
Mon 2a	Clear	49°9° (likely 49°9° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 3 mph4 km/h	89%	11%	0
Mon 3a	Clear	49°9° (likely 49°9° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	89%	8%	0
Mon 4a	Clear	48°9° (likely 48°9° to 51°11°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	4%	0
Mon 5a	Clear	47°8° (likely 47°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	11%	0
Mon 6a	Clear	47°8° (likely 46°8° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 3 mph4 km/h	89%	5%	0
Mon 7a	Clear	46°8° (likely 45°7° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 2 mph4 km/h	89%	2%	0
Mon 8a	Sunny	45°7° (likely 44°7° to 48°9°)	45°7°	0%	0 mph0 km/h, gusts 2 mph4 km/h	93%	10%	0
Mon 9a	Sunny	48°9° (likely 46°8° to 50°10°)	48°9°	0%	0 mph0 km/h, gusts 3 mph4 km/h	89%	14%	0
Mon 10a	Sunny	53°12° (likely 53°12° to 57°14°)	53°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	80%	10%	1
Mon 11a	Sunny	59°15° (likely 59°15° to 62°17°)	59°15°	0%	0 mph0 km/h, gusts 4 mph6 km/h	72%	14%	3
Mon 12p	Mostly sunny	64°18° (likely 63°17° to 66°19°)	64°18°	0%	0 mph0 km/h, gusts 6 mph10 km/h	60%	35%	4
Mon 1p	Cloudy	68°20° (likely 67°19° to 70°21°)	68°20°	0%	0 mph0 km/h, gusts 8 mph12 km/h	53%	57%	5
Mon 2p	Cloudy	70°21° (likely 70°21° to 72°22°)	70°21°	0%	0 mph0 km/h, gusts 9 mph14 km/h	49%	60%	5
Mon 3p	Mostly sunny	73°23° (likely 71°22° to 73°23°)	73°23°	0%	0 mph0 km/h, gusts 9 mph15 km/h	43%	64%	5
Mon 4p	Mostly sunny	73°23° (likely 72°22° to 74°23°)	73°23°	0%	0 mph0 km/h, gusts 9 mph15 km/h	43%	66%	4
Mon 5p	Mostly sunny	73°23° (likely 71°22° to 74°23°)	73°23°	0%	0 mph0 km/h, gusts 9 mph14 km/h	44%	64%	2
Mon 6p	Cloudy	70°21° (likely 69°21° to 71°22°)	70°21°	0%	0 mph0 km/h, gusts 7 mph11 km/h	57%	90%	1
Mon 7p	Cloudy	66°19° (likely 64°18° to 66°19°)	66°19°	0%	0 mph0 km/h, gusts 4 mph7 km/h	65%	92%	0
Mon 8p	Cloudy	62°17° (likely 61°16° to 63°17°)	62°17°	0%	0 mph0 km/h, gusts 3 mph4 km/h	75%	88%	0
Mon 9p	Cloudy	59°15° (likely 58°14° to 62°17°)	59°15°	0%	0 mph0 km/h, gusts 3 mph5 km/h	80%	87%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Mostly sunny. High 71°22°, low 46°8°. Typical 68°20° / 44°7°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Tonight: Mostly clear, with a low around 46. Wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°–72°22°
Low, likely
40°4°–47°8°
Typical high / low
68°20° / 44°7°
Wind
6 mph9 km/h
UV peak
5
Tomorrow, Oct 25. Mostly sunny. High 72°22°, low 45°7°. Typical 68°20° / 44°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Official NWS forecast
Day: Sunny, with a high near 72. Northeast wind 0 to 5 mph.
Night: Mostly clear, with a low around 45. North wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
70°21°–72°22°
Low, likely
44°7°–48°9°
Typical high / low
68°20° / 44°7°
Wind
7 mph11 km/h, gusts 15 mph24 km/h
UV peak
5
Monday, Oct 26. Cloudy. High 73°23°, low 46°8°. Typical 67°19° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Official NWS forecast
Day: Sunny, with a high near 73. Northeast wind around 0 mph.
Night: Partly cloudy, with a low around 46. Northeast wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–73°23°
Low, likely
44°7°–48°9°
Typical high / low
67°19° / 43°6°
Wind
7 mph12 km/h, gusts 12 mph20 km/h
UV peak
5
Tuesday, Oct 27. Partly sunny. High 75°24°, low 48°9°. Typical 67°19° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 75. Northeast wind around 0 mph.
Night: Mostly cloudy, with a low around 48. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–75°24°
Low, likely
45°7°–50°10°
Typical high / low
67°19° / 43°6°
Wind
4 mph6 km/h, gusts 11 mph18 km/h
UV peak
5
Wednesday, Oct 28. Cloudy. High 73°23°, low 47°8°. Typical 66°19° / 43°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°16°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 73.
Night: Partly cloudy, with a low around 47.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
70°21°–73°23°
Low, likely
47°8°–54°12°
Typical high / low
66°19° / 43°6°
Wind
4 mph6 km/h, gusts 12 mph20 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 75°24°, low 49°9°. Typical 66°19° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Clear, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 75.
Night: Mostly clear, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
73°23°–75°24°
Low, likely
49°9°–51°11°
Typical high / low
66°19° / 42°6°
Wind
4 mph6 km/h, gusts 14 mph22 km/h
UV peak
5
Friday, Oct 30. Mostly sunny. High 78°26°, low 53°12°. Typical 66°19° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 64°18°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 78.
Night: Partly cloudy, with a low around 53.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–78°26°
Low, likely
49°9°–53°12°
Typical high / low
66°19° / 42°6°
Wind
5 mph8 km/h, gusts 15 mph24 km/h
UV peak
4
Saturday, Oct 31. Mostly cloudy. High 78°26°, low 56°13°. Typical 65°18° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 67°20°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 63°17°
  20% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 78.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
71°22°–79°26°
Low, likely
53°12°–58°14°
Typical high / low
65°18° / 42°6°
Wind
7 mph11 km/h, gusts 18 mph29 km/h
UV peak
4
Sunday, Nov 1. Drizzle. High 74°23°, low 61°16°. Typical 65°18° / 41°5°. Rain 0.08 in2 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 62°17°
  30% chance
2. Afternoon
  noon–6 PM
  Drizzle, 75°24°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 68°20°
  30% chance · 0.04 in0.9 mm
4. Overnight
  midnight–6 AM
  Cloudy, 64°18°
  20% chance · 0.18 in4.6 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
72°22°–76°24°
Low, likely
52°11°–69°21°
Typical high / low
65°18° / 41°5°
Wind
13 mph21 km/h, gusts 30 mph49 km/h
UV peak
4
Monday, Nov 2. Drizzle. High 74°23°, low 58°14°. Typical 65°18° / 41°5°. Rain 0.47 in12 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 65°19°
  20% chance · 0.37 in9.4 mm
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  30% chance · 0.03 in0.8 mm
3. Evening
  6 PM–midnight
  Partly cloudy, 62°17°
  30% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
71°22°–79°26°
Low, likely
46°8°–65°18°
Typical high / low
65°18° / 41°5°
Wind
17 mph27 km/h, gusts 34 mph55 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 71°, low 46°.
Tomorrow
Dry, high 72°, low 45°.
Monday
Dry, high 73°, low 46°.
Rest of week
Mostly dry, highs 73–78°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (MRX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Tennessee River below Watts Bar Dam

15 mi

Below flood stage

Level: 680 ft

Forecast peak 680 ft Sun 1 AM

Reading from Sat 8 PM · NWS gauge page

Tennessee River above Watts Bar Dam

16 mi

Level: 741 ft

Reading from Sat 8 PM · NWS gauge page

Sewee Creek at Decatur 5NE

16 mi

Below flood stage

Level: 0.3 ft
Flow: 85 cfs

Reading from Sat 8 PM · NWS gauge page

Oostanaula Creek at Sanford 1SE

21 mi

Below flood stage

Level: 2.2 ft
Flow: 41 cfs

Reading from Sat 8:15 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 75% less heating than a typical week.

This week 18Typical 71

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 6
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 50°F).

Open the windows?

Sun, 12:00 PM–8:00 PM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

Dayton 2se · official normals 1991–2020 · records 1956–2026

Oct 24, today vs a typical year

Today’s expected high is 3°2° warmer than typical.

Last 7 days vs normal

On average 1° colder than normal (daily mean temperature).

−6°−4°MonOct 19
−4°−2°TueOct 20
±0°WedOct 21
+1°±0°ThuOct 22
+2°+1°FriOct 23
+2°+1°SatOct 24
—SunOct 25

Dayton weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 59 min; Losing 2 min 2 s a day; shortest Dec 21, 1 h 14 min less
Golden hour: 6:18–7:09 PM; Morning 7:38–8:29 AM
Blue hour: 7:09–7:19 PM; Morning 7:28–7:38 AM; first light 7:28 AM

Stars tonight? Fair

Clear 10:10 PM–7:29 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 6:10 AM · rises 5:49 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Dayton. The highest point on the skyline is about 2,000 ft, 4 mi away.Skyline from USGS elevation data, heights drawn up to 4.5× taller. Sky, sun and moon as they are now.

Dayton, TN weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Tennessee River below Watts Bar Dam

Tennessee River above Watts Bar Dam

Sewee Creek at Decatur 5NE

Oostanaula Creek at Sanford 1SE

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon