Marine Weather and Tide Forecast for Bingham, IL

SHORT TERM /THROUGH MONDAY/
Issued at 322 AM CST Sun Nov 8 2026

Chilly morning temperatures and river valley steam fog will yield to sunshine and rising temperatures today. Mild and dry conditions continue into Monday.

A weak cold front extends south of a low pressure system that is positioned southwest of the Hudson Bay early this morning. IR satellite shows predominately high clouds stretching southward through the Great Lakes, bending westward through Nebraska. There may be enough cloud cover to inhibit temperatures from falling much further than latest surface obs (mid-30s) over NE Missouri and WC Illinois. Despite that the surface high has shifted southward near the Missouri/Arkansas border, it maintains clear skies and light winds south of I-70, where temperatures have already fallen into the upper 20s to low-30s. This is the southward shift in cooler, sub-freezing air that was advertised in prior AFDs in recent days.

60s return today through Monday as milder air advects into the region. The milder airmass actually originates from the central and northern Plains and advects east-southeast around mid-level ridging centered over Texas. Initially, the aforementioned trough acts to stunt the eastward progression of the milder air, keeping temperatures in the low to mid-60s north of I-70.
Tonight into Monday, 850MB temperatures rise approximately 2-4C along and west of the Mississippi River. In conjunction with the surface high to the south, mid-level warming will push temperatures a little higher to start the work week. Southeast Missouri and southwest Illinois locations are in better position to reach the lower 70s Monday afternoon.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/
Issued at 322 AM CST Sun Nov 8 2026

Guidance remains tightly clustered through the early half of the week with only a slight increase in spread by Wednesday. There is high confidence in mild conditions through at least Tuesday with widespread 60s for most areas, and low-70s across SE Missouri and SW Illinois. Mild conditions continue into Wednesday for much of the area, though an approaching cold front and arrival of a surface low will determine how quickly cooler air arrives through the later half of the day.

A surface low begins to develop over Kansas early Wednesday morning as an upper level shortwave moves southeast out of the northern Plains. The surface low tracks eastward through Missouri and Illinois, eventually deepening as the northern and southern jets begin to phase over the eastern U.S. around Thursday. This evolution becomes a key player later in rain potential and cold air advection. First, however, a more vigorous, amplifying upper level trough digs southward out of Canada, eventually consolidating with the shortwave from the northern Plains.
Consequently, this is where guidance begins to diverge with timing and placement of these features.

Deterministic GFS guidance is notably more bullish late Wednesday with deep saturation along and east of the Mississippi River while the ECMWF phases later and strengthens the surface low slightly further east. The difference between the two is lighter rain showers in the ECMWF solution with GFS showing better potential for a light rain, but enough to soak the surface. That being said, NBM probabilistic data only shows 40-50% probabilities for measurable rainfall across the southeastern CWA, while many of the wetter GFS ensemble members land at or below 0.40 of an inch. The lower quartiles across majority ensembles range from zero to a few hundredths of an inch across southeastern sections of the CWA Therefore, while rain chances have crept up, there remains a considerable amount of uncertainty in rainfall amounts with higher confidence that the northwestern sections of the CWA miss out on measurable rainfall.

By Thursday, much colder air arrives behind the surface low as it departs to the east. Rainfall potential looks to be low through the remainder of the period. However, confidence is increasing that the region remains under the western edge of the longwave upper trough. The cyclonic side of these systems can often lead to diurnal clouds that sometimes produce drizzle or a few sprinkles. This is rarely picked up by lower spatial and temporal resolution of long range guidance with better insight as it is captured by medium and short range models. The general theme will be a trend toward below normal temperatures with the fall chill extending into next weekend. Some ensemble members include highs in the 40s over parts of the region Thursday and Friday. Temperatures eventually moderate at the tail end of the period, though ensemble spread increases and provides less confidence on the timing and magnitude of warmth.

AVIATION /12Z TAFS THROUGH 18Z MONDAY/
Issued at 529 AM CST Sun Nov 8 2026

River steam fog is resulting in 1/4SM visibility at KSUS and KJEF again this morning. Fog has been less dense at KCPS, though a brief dip to 1/4SM is possible through 12-13z. Dense river valley fog is expected to erode between 13-14z with light westerly flow through the period.

VFR conditions are expected through much of the remainder of the period up until late tonight into Monday morning. Warm air attempts to advance eastward over top shallow, boundary layer moisture with the development of a strong nocturnal inversion.
While fog looks probable, affected terminals can be addressed in later updates as details become more clear.

LSX WATCHES/WARNINGS/ADVISORIES
MO...None.
IL...None.