11/01/2025
First Warn Forecast: Saturday, November 1, 2025
Freeze Warning Tonight | A Few Showers Today | Warmer Weather Next Week
November begins on a chilly note across the region as fall settles in for real this weekend. A weak cold front is sliding just southeast of the area this morning, bringing clouds and a few light rain showers to parts of central and southeast Missouri. Most of the precipitation has been evaporating before reaching the ground due to dry air near the surface, but southeast Missouri and southwest Illinois have the best shot at measurable rainfall—up to a tenth of an inch possible. Elsewhere, expect more clouds than sunshine today and perhaps a few isolated sprinkles.
Temperatures will stay cool all day under the influence of cold air advection behind the front. Many areas north of I-70 may struggle to reach 50 degrees, while southeast Missouri could climb into the lower 50s. Clouds will gradually clear later tonight as high pressure settles in overhead.
That’s when the coldest air of the season so far will move in. Clear skies, calm winds, and dry air will combine for ideal radiational cooling overnight. A Freeze Warning is in effect for most of eastern Missouri and west-central Illinois as temperatures fall into the upper 20s and low 30s by sunrise Sunday. This will be the first widespread freeze of the season, marking the end of the growing season for many. A few areas—including St. Louis and nearby counties—are under a Freeze Watch due to some uncertainty about lingering cloud cover or slightly higher dewpoints, but even there, frost and near-freezing temperatures are likely.
Sunday will bring plenty of sunshine, but it will stay cool with highs in the low to mid-50s. By Sunday night into Monday, the pattern shifts as high pressure moves east and southerly winds return. That will start a warming trend that carries through much of next week.
By Monday and Tuesday, temperatures will rebound into the 60s, with dry conditions expected across the region. Two weak cold fronts are expected to pass—one early in the week and another around Wednesday—but neither will bring much more than passing clouds. The end of the week could feature another chance of rain as a stronger trough approaches, but confidence remains low for now.
All in all, this weekend brings a taste of late fall—cold nights, crisp days, and the first freeze of the season—before a return to mild, comfortable weather early next week.