Sidney, MI Weather Forecast
Montcalm County, Michigan
Seven-day outlook
38–65°F across the weekThe week runs between 38° and 65°, with Monday the warmest day of it. There is no real trend across it: one day looks much like the next. Tuesday is the wettest day, peaking near 47%. 4 of the 7 days stay dry.
Forecasts come from the National Weather Service's own computer models, and current conditions from the nearest reporting weather station. Both are served through the weather API. A forecast is guidance, not a warning, and anything the Weather Service has actually issued is on the live map.
The written summaries on this page are generated from the forecast data above, not by a meteorologist. Each sentence is a reading of the same numbers you can see, and no forecaster has reviewed them.
About the Sidney forecast
Sidney sits at 43.2461°N, 85.1385°W in Montcalm County, Michigan. The forecast above is drawn for that point from the National Weather Service's own computer models: a seven-day outlook, and a finer-grained one covering the next eighteen hours where it reaches, and the radar and alert panels show what the Weather Service has out over the area right now.
- County
- Montcalm County
- Coordinates
- 43.2461°N, 85.1385°W
- Population
- 2,610 · 2023 estimate
- Land area
- 33.947 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Sidney, and the forecast is for that location, not for every address inside the city limits, and a large city can have real weather differences from one side to the other.
How well can the network see Sidney?
The nearest Doppler radar is KGRR (Grand Rapids, MI), 32 miles to the SW. A WSR-88D's lowest routine scan sits half a degree above horizontal, and the earth curves away beneath it, so by the time that beam reaches Sidney its center is about 2,000 ft above ground. That is about as close as radar coverage gets in the United States: the lowest scan is still near the ground when it reaches Sidney, so low-level rotation and the leading edge of a gust front show up on it. Sidney is closer to its radar than 68% of US cities.
The closest instrument actually measuring the air is KY70 · Ionia Cnty Arpt on the ASOS/AWOS network, 21 miles away. Far enough that "current conditions" for Sidney is an educated reading of somewhere else, worth knowing before you plan around a single temperature.
Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the center of the beam is, not its edges, and unusual temperature profiles bend it. Radar siting from the NWS WSR-88D network, station positions from the Michigan observing network as of this build.
Forecasts near Sidney
- Evergreen, MI6 mi
- Montcalm, MI6 mi
- Greenville, MI7 mi
- Eureka, MI8 mi
- Belding, MI11 mi
- Spencer, MI12 mi
- Orleans, MI12 mi
- Crystal, MI12 mi
Elsewhere in Michigan
DetroitGrand RapidsWarrenSterling HeightsAnn ArborLansingAll Michigan forecasts →