McAlester, Oklahoma Weather
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Climate of McAlester: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in McAlester, with average daytime highs around 34°C. January is the coolest, when nights typically fall to about -2°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 36°C, so the seasons feel very different from each other.
The area receives about 1180 mm of rain in a typical year. Most of it falls from April to June and September to October (around 52% of the yearly total), and May is the wettest month at roughly 161 mm.
There is no long, mild season here; May usually comes closest to comfortable outdoor weather, with highs near 26°C.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 9° | -2° | 60 mm | 78% |
| Feb | 11° | 0° | 71 mm | 78% |
| Mar | 17° | 5° | 95 mm | 77% |
| Apr | 22° | 10° | 122 mm | 76% |
| May | 26° | 16° | 161 mm | 78% |
| Jun | 31° | 21° | 114 mm | 74% |
| Jul | 34° | 23° | 94 mm | 66% |
| Aug | 34° | 22° | 94 mm | 64% |
| Sep | 30° | 18° | 100 mm | 67% |
| Oct | 23° | 11° | 115 mm | 70% |
| Nov | 16° | 5° | 72 mm | 74% |
| Dec | 10° | -1° | 82 mm | 78% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around McAlester. Values describe typical conditions, not a forecast.
About McAlester weather
McAlester lies in Oklahoma's position on the southern Great Plains, known for volatile weather and severe thunderstorms — about 137 km south of Tulsa. Expect hot summers (June–August) with highs often above 35°C. Winter brings cold, changeable winters with occasional ice storms and snow. This page shows live, auto-refreshing weather for McAlester: 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/Chicago.
Frequently asked questions
McAlester is about 137 km south of Tulsa, in Oklahoma.
McAlester sees cold, changeable winters with occasional ice storms and snow.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for McAlester's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in McAlester, with average daytime highs of about 34°C and nights around 23°C.
The coldest nights come in January, when the average low is about -2°C and daytime highs reach around 9°C. Frost is possible on clear, calm nights.
McAlester receives about 1180 mm of rain in a typical year. May is the wettest month at roughly 161 mm, and the main rainy period is April to June and September to October.
There is no long mild season in McAlester. May usually comes closest to comfortable outdoor weather.
In November McAlester typically sees daytime highs near 16°C and lows near 5°C, with about 72 mm of rain over the month and average humidity around 74%. 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.
The current temperature for McAlester updates automatically at the top of this page — scroll to the hourly strip below to see how it's expected to change over the day.
McAlester's day-to-day weather follows the broader pattern of Oklahoma described above. See the hourly weather forecast or the air quality index for more detail.