St. Joseph, Missouri Weather
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Climate of St. Joseph: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in St. Joseph, with average daytime highs around 32°C. January is the coolest, when nights typically fall to about -8°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 40°C, so the seasons feel very different from each other.
The area receives about 920 mm of rain in a typical year. Most of it falls from May to August (around 53% of the yearly total), and May is the wettest month at roughly 134 mm.
For outdoor plans and travel, April and September to October usually offer the most comfortable weather in St. Joseph, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 1° | -8° | 22 mm | 80% |
| Feb | 4° | -7° | 31 mm | 77% |
| Mar | 12° | -1° | 55 mm | 74% |
| Apr | 19° | 5° | 93 mm | 70% |
| May | 24° | 12° | 134 mm | 73% |
| Jun | 29° | 18° | 132 mm | 74% |
| Jul | 32° | 20° | 100 mm | 69% |
| Aug | 31° | 19° | 119 mm | 69% |
| Sep | 26° | 14° | 79 mm | 70% |
| Oct | 18° | 6° | 79 mm | 71% |
| Nov | 11° | 0° | 38 mm | 75% |
| Dec | 3° | -6° | 38 mm | 81% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around St. Joseph. Values describe typical conditions, not a forecast.
About St. Joseph weather
St. Joseph, in Missouri's humid continental-to-subtropical climate, prone to severe spring storms, is positioned about 78 km north of Kansas City. The warmer months mean hot, humid summers (June–August). Finally, there's cold winters (December–February) with occasional ice storms. This page shows live, auto-refreshing weather for St. Joseph: 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
St. Joseph is about 78 km north of Kansas City, in Missouri.
St. Joseph sees cold winters (December–February) with occasional ice storms.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for St. Joseph's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in St. Joseph, with average daytime highs of about 32°C and nights around 20°C.
The coldest nights come in January, when the average low is about -8°C and daytime highs reach around 1°C. Frost is possible on clear, calm nights.
St. Joseph receives about 920 mm of rain in a typical year. May is the wettest month at roughly 134 mm, and the main rainy period is May to August.
April and September to October usually offer the most comfortable weather in St. Joseph, with mild daytime temperatures and little rain.
In November St. Joseph typically sees daytime highs near 11°C and lows near 0°C, with about 38 mm of rain over the month and average humidity around 75%. 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 St. Joseph 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.
St. Joseph's day-to-day weather follows the broader pattern of Missouri described above. See the hourly weather forecast or the air quality index for more detail.