World > North America > United States > New Hampshire > Union  

Union, NH Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Union, NH Weather Forecast

Current Conditions

Settings
Union NH weather - Clear - 40°F
Clear
40°F
Updated 4:41 am
Feels Like 42°F
Humidity 96%
Wind WNW 3 mph
Barometer  30.17 in
Dew Point 39°F
Union NH weather - Clear - 4°C
Clear
4°C
Updated 4:41 am
Feels Like 6°C
Humidity 96%
Wind WNW 5 km/h
Barometer  102.1 kPa
Dew Point 4°C
WX Settings

Union Weather Forecast

REST OF TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY
Union, NH Weather - Rest Of Tonight Mostly Clear Union, NH Weather - Sunday Chance Of Showers Union, NH Weather - Sunday Night Chance Of Showers Union, NH Weather - Monday Patchy Fog Union, NH Weather - Monday Night Mostly Cloudy Union, NH Weather - Tuesday Mostly Cloudy Union, NH Weather - Tuesday Night Partly Cloudy Union, NH Weather - Wednesday Partly Sunny Union, NH Weather - Wednesday Night Partly Cloudy Union, NH Weather - Thursday Partly Sunny Union, NH Weather - Thursday Night Partly Cloudy Union, NH Weather - Friday Chance Of Showers
Mostly Clear Chance of Showers Chance of Showers Patchy Fog Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Sunny Partly Cloudy Partly Sunny Partly Cloudy Chance of Showers
Lo: 40°FLo: 4°C Hi: 55°FHi: 13°C
 Lo: 45°FLo: 7°C Hi: 65°FHi: 18°C
 Lo: 41°FLo: 5°C Hi: 61°FHi: 16°C
 Lo: 41°FLo: 5°C Hi: 61°FHi: 16°C
 Lo: 41°FLo: 5°C Hi: 61°FHi: 16°C
 Lo: 45°FLo: 7°C Hi: 61°FHi: 16°C
POP: 90% POP: 90% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 227 AM EDT Sun Sep 20 2026 Union, NH Weather - WeatherWorld.com

Trending Headlines

Union Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Union Quick Facts

National Two Day Weather Forecast


E-mail the Union Weather Forecast

Voice your opinion or tell us about page issues...

Union Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 259 AM EDT Sun Sep 20 2026

Key Messages

1. Low pressure will bring a period of rain today into tonight.

2. High pressure brings mostly fair weather Monday through Wednesday with temperatures running below normal. Rain chances increase during the Friday to Sunday timeframe as a possible coastal low develops along the Eastern Seaboard.


Discussion

... KEY MESSAGE 1 DESCRIPTION...

A short wave trough will approach from the west early today with rapidly increasing clouds. Increasing forcing for ascent will aid in a shield of overru...