Stillwater, Minnesota Weather
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Climate of Stillwater: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Stillwater, with average daytime highs around 28°C. January is the coolest, when nights typically fall to about -16°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 44°C, so the seasons feel very different from each other.
The area receives about 890 mm of rain in a typical year. Most of it falls from May to August (around 51% of the yearly total), and June is the wettest month at roughly 132 mm.
For outdoor plans and travel, September usually offers the most comfortable weather in Stillwater, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | -6° | -16° | 21 mm | 91% |
| Feb | -4° | -15° | 30 mm | 89% |
| Mar | 4° | -7° | 47 mm | 82% |
| Apr | 12° | 0° | 85 mm | 75% |
| May | 19° | 7° | 111 mm | 75% |
| Jun | 25° | 13° | 132 mm | 77% |
| Jul | 28° | 16° | 100 mm | 74% |
| Aug | 26° | 15° | 114 mm | 74% |
| Sep | 22° | 10° | 96 mm | 75% |
| Oct | 13° | 2° | 78 mm | 78% |
| Nov | 5° | -4° | 38 mm | 82% |
| Dec | -3° | -12° | 40 mm | 90% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Stillwater. Values describe typical conditions, not a forecast.
About Stillwater weather
Stillwater is set in Minnesota's humid continental climate, known for cold winters shaped by its northern latitude, about 37 km east of Minneapolis. Summers bring warm summers (June–August). The year winds down with very cold winters (December–February) with heavy snow. This page shows live, auto-refreshing weather for Stillwater: 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
Stillwater is about 37 km east of Minneapolis, in Minnesota.
Stillwater 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 Stillwater's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Stillwater, 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 -16°C and daytime highs reach around -6°C. Frost is possible on clear, calm nights.
Stillwater receives about 890 mm of rain in a typical year. June is the wettest month at roughly 132 mm, and the main rainy period is May to August.
September usually offers the most comfortable weather in Stillwater, with mild daytime temperatures and little rain.
In November Stillwater typically sees daytime highs near 5°C and lows near -4°C, with about 38 mm of rain over the month and average humidity around 82%. 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 Stillwater is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Stillwater'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.