Fairmont, West Virginia Weather
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Climate of Fairmont: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), August is usually the hottest month in Fairmont, with average daytime highs around 28°C. January is the coolest, when nights typically fall to about -6°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 35°C, so the seasons feel very different from each other.
The area receives about 1130 mm of rain in a typical year. Most of it falls from April to July, and July is the wettest month at roughly 119 mm.
For outdoor plans and travel, August to September usually offer the most comfortable weather in Fairmont, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 2° | -6° | 83 mm | 87% |
| Feb | 4° | -5° | 82 mm | 86% |
| Mar | 9° | -1° | 87 mm | 82% |
| Apr | 16° | 4° | 100 mm | 78% |
| May | 21° | 11° | 116 mm | 80% |
| Jun | 25° | 15° | 115 mm | 78% |
| Jul | 28° | 17° | 119 mm | 75% |
| Aug | 28° | 16° | 88 mm | 70% |
| Sep | 25° | 13° | 86 mm | 69% |
| Oct | 18° | 6° | 91 mm | 75% |
| Nov | 11° | 0° | 74 mm | 80% |
| Dec | 4° | -3° | 93 mm | 87% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Fairmont. Values describe typical conditions, not a forecast.
About Fairmont weather
Fairmont sits within West Virginia's humid continental climate, shaped by the Appalachian terrain, about 180 km north-east of Charleston. Conditions turn hot with warm summers (June–August), milder at higher elevations. By December, expect cold winters with regular mountain snow. This page shows live, auto-refreshing weather for Fairmont: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/New_York.
Frequently asked questions
Fairmont is about 180 km north-east of Charleston, in West Virginia.
Fairmont sees cold winters with regular mountain snow.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Fairmont's exact coordinates. No fixed schedule, the page updates whenever you load it.
August is usually the hottest month in Fairmont, with average daytime highs of about 28°C and nights around 16°C.
The coldest nights come in January, when the average low is about -6°C and daytime highs reach around 2°C. Frost is possible on clear, calm nights.
Fairmont receives about 1130 mm of rain in a typical year. July is the wettest month at roughly 119 mm, and the main rainy period is April to July.
August to September usually offer the most comfortable weather in Fairmont, with mild daytime temperatures and little rain.
In November Fairmont typically sees daytime highs near 11°C and lows near 0°C, with about 74 mm of rain over the month and average humidity around 80%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
Live temperature for Fairmont is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Fairmont's day-to-day weather follows the broader pattern of West Virginia described above. See the hourly weather forecast or the air quality index for more detail.