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WeatherLiveMaineUnion

Union, ME Weather

Current WeatherUnion · 5:22 PM EDT
77° | 64°
76°F
Feels like 80°
Partly cloudy
WindSE 3 mph · Gusts 14 mph
Precip22% · –
Humidity68% · Dew point 65°
UV index4 Moderate
Air Quality37 Good
Pressure29.83 inHg
Visibility6 mi
Sunrise / Sunset5:44 AM · 7:37 PM · 13h 53m

Weather map — Union

Full radar →
Now
76°
7%
3 mph
18:00
77°
8%
5 mph
19:00
75°
11%
5 mph
20:00
70°
11%
3 mph
21:00
69°
12%
2 mph
22:00
68°
19%
2 mph
23:00
67°
18%
2 mph
00:00
67°
27%
2 mph
01:00
66°
30%
2 mph
02:00
66°
29%
2 mph
03:00
66°
31%
2 mph
04:00
65°
31%
2 mph
05:00
64°
29%
2 mph
06:00
62°
38%
2 mph
07:00
63°
29%
2 mph
08:00
64°
15%
2 mph
09:00
67°
25%
4 mph
10:00
69°
23%
6 mph
11:00
67°
37%
10 mph
12:00
67°
57%
11 mph
13:00
68°
47%
10 mph
14:00
67°
45%
11 mph
15:00
69°
31%
12 mph
16:00
69°
29%
10 mph

Today · Tue 8/18

High 77°
22% / –

Fog. Winds S at 6 mph.

Tonight · Tue 8/18

Low 62°
12% / –

Sunny. Winds S at 2 mph.

Tomorrow · Wed 8/19

69° | 62°
74% / 0.06 in

Mostly cloudy. Winds S at 12 mph.

7-day trend

Union · temperature + precipitation

10-day forecast

Updated 5:22 PM

Details & indices

Wind
3 mph SE
Gusts 14 mph
Humidity
68%
Dew point 65°
Pressure
29.83 inHg
Falling
UV index
4 — Moderate
High today
Air Quality
Good
AQI 37 · US EPA
Allergy
Very high
Mugwort
Visibility
6 mi
Reduced
Allergy — Union

🌿 Conditions right now

View all →
Birch
None
Grass
High
Oak
None
Alder
None
Hazel
None
Mugwort
Very high
Ragweed
Low

Sun & moon

Sunrise5:44 AM
Sunset7:37 PM
Length of day13h 53m
Moonrise12:32 PM
Moonset10:00 PM
Next full moonAug 28 Sturgeon Moon
Latitude44.2115°N
Longitude-69.2742°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Fair
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Data sources · Tuesday, August 18
Where the Union forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 44.2115°N, -69.2742°.
NBM + global weather models
Updated: 5:22 PM
Weather in Union
Union's outlook: warmest day near 77° (Tuesday), coldest night about 56° (Saturday). Roughly 0.98 in of rain falls over the period, with Wednesday the most likely wet day (92%). Wind is the one to watch: gusts to 25 mph around Monday. No active NWS alerts at the moment — quiet on the hazards front. Right now Union is running about 10° warmer than Portland. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Union, ME · Elev 92 ft · 44.21°N, 69.27°W · Maine · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 5:22 PM