Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Harriman, Tennessee

Roses open on the Piedmont edge. Day 59 of spring. Read this microseason across nine climate regions →

Harriman, TN
Sunday, May 17 at 4:08 AM
66
°
Partly Cloudy
Feels like
67°
Humidity
69%
Wind
0 mph
Sunrise
6:30 AM
Sunset
8:38 PM
Harriman, TN
Hour by hour · 24h
49°
12a
48°
1a
47°
2a
46°
3a
44°
4a
44°
5a
43°
6a
42°
7a
46°
8a
51°
9a
57°
10a
61°
11a
64°
12p
67°
1p
70°
2p
72°
3p
74°
4p
75°
5p
76°
6p
74°
7p
72°
8p
66°
9p
64°
10p
62°
11p
L 42°H 76°
Harriman, TN
7-day forecast
  1. Today
    May 17
    Overcast
    88°61°
  2. Monday
    May 18
    Heavy Drizzle
    88°65°
  3. Tuesday
    May 19
    Overcast
    86°64°
  4. Wednesday
    May 20
    Light Showers
    68%
    87°63°
  5. Thursday
    May 21
    Showers
    61%
    78°67°
  6. Friday
    May 22
    Light Drizzle
    70%
    77°66°
  7. Saturday
    May 23
    Drizzle
    62%
    77°65°
Harriman, TN
Anemometer · 24h winds · from true
NESW
From · True
NW
315° · backing 40°
Direction
NW
315°
Sustained
0
mph
Gust
0
mph
Peak 24h
16
avg 4
Beaufort · 0 · CALM
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 4 · pk 16 @ 11:00a
−24h−18h−12h−6hnow
The air is still. Smoke rises straight up.
Harriman, TN
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
984.7
-0.3 mb in 3h · steady · 29.08 inHg
Now
984.7
mb
3h
-0.3
mb
12h
-2.6
mb
24h
-1.0
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 985989
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Harriman, TN
Air quality
62
AQI
Moderate
PM 2.5
13.3 μg/m³
PM 10
14.1 μg/m³
NO₂
7.1 μg/m³
Ozone
84.0 μg/m³
UV Index
0.0 Low
Harriman, TN
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
10:04 AM
Sunrise
6:30 AM
Daylight
14h 08m
Sunset
8:38 PM
Civil dusk
1:07 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Harriman, TN
The moon
New Moon
0% illuminated
Moonrise
10:42 AM
Moonset
1:03 AM
In sign
♊︎ Gemini
Harriman, TN
Microseason · 28 of 72
May 16–20

Roses open on the Piedmont edge

insect
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Harriman at a glance

  • Today vs. normal: 10°F below the seasonal normal for this latitude
  • Last frost: March 23 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Peak growing season

As of May 17, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

ZIP codes in Harriman

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.