Freezing fog is the immediate concern around Alton early Sunday, while the River Bend forecast calls for mostly sunny skies and a high of 52 degrees. At 6:42 a.m., the temperature was 24 degrees with visibility reduced to 1 mile, which could complicate early travel. Tonight will be clear and cold, with a low of 29.
The daytime forecast offers a substantial warmup from the freezing start, but temperatures return below freezing overnight. That overnight cold could affect tender plants left outdoors. Sunday's sunshine begins a stretch of mainly sunny days that continues through Tuesday, with progressively warmer daytime highs.
Monday brings plenty of sunshine and a high of 56, four degrees warmer than Sunday. Clear skies continue Monday night, when the low reaches 33. The overnight forecast is also four degrees warmer than Sunday night's, though still close to freezing. Dry conditions remain the main story for the start of the workweek, before clouds increase and winds strengthen later in the five-day outlook.
Tuesday stays sunny with a high of 57, only a slight increase from Monday. Clear conditions continue overnight with a low of 37, extending the gradual warming trend in both daytime and nighttime temperatures.
By Wednesday, partly sunny skies accompany a high of 61. South winds strengthen to about 12 mph, with gusts near 23 mph that could move lightweight outdoor items. The night looks mostly clear with a low of 44, a more noticeable step up from Tuesday night's reading.
Thursday brings a mix of clouds and sun and the warmest high in the outlook at 65. A 25% daytime rain chance marks a change from the mainly dry forecast through Wednesday. Thursday night turns partly cloudy, with a low of 47.
Get the latest updates on weather conditions here: RiverBender.com/weather.
