Mankato, Minnesota Weather
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Climate of Mankato: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Mankato, with average daytime highs around 29°C. January is the coolest, when nights typically fall to about -14°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 43°C, so the seasons feel very different from each other.
The area receives about 820 mm of rain in a typical year. Most of it falls from May to June, and June is the wettest month at roughly 127 mm.
For outdoor plans and travel, July to September usually offer the most comfortable weather in Mankato, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | -4° | -14° | 18 mm | 86% |
| Feb | -2° | -13° | 27 mm | 84% |
| Mar | 6° | -5° | 45 mm | 77% |
| Apr | 14° | 2° | 81 mm | 71% |
| May | 21° | 8° | 108 mm | 72% |
| Jun | 26° | 15° | 127 mm | 73% |
| Jul | 29° | 18° | 95 mm | 70% |
| Aug | 28° | 16° | 94 mm | 69% |
| Sep | 23° | 11° | 91 mm | 69% |
| Oct | 14° | 3° | 62 mm | 73% |
| Nov | 6° | -3° | 33 mm | 78% |
| Dec | -2° | -10° | 34 mm | 86% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Mankato. Values describe typical conditions, not a forecast.
About Mankato weather
Mankato sits within Minnesota's humid continental climate, known for cold winters shaped by its northern latitude, about 108 km south-west of Minneapolis. Conditions turn hot with warm summers (June–August). By December, expect very cold winters (December–February) with heavy snow. This page shows live, auto-refreshing weather for Mankato: 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
Mankato is about 108 km south-west of Minneapolis, in Minnesota.
Mankato sees very cold winters (December–February) with heavy snow.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Mankato's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Mankato, with average daytime highs of about 29°C and nights around 18°C.
The coldest nights come in January, when the average low is about -14°C and daytime highs reach around -4°C. Frost is possible on clear, calm nights.
Mankato receives about 820 mm of rain in a typical year. June is the wettest month at roughly 127 mm, and the main rainy period is May to June.
July to September usually offer the most comfortable weather in Mankato, with mild daytime temperatures and little rain.
In November Mankato typically sees daytime highs near 6°C and lows near -3°C, with about 33 mm of rain over the month and average humidity around 78%. 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 Mankato is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Mankato's day-to-day weather follows the broader pattern of Minnesota described above. See the hourly weather forecast or the air quality index for more detail.