Indiana · live outlook · refreshes every 3 h

Indiana sap flow forecast

The next several days for Indiana's sugaring country, read the way a sugarmaker reads them: how cold the night gets, how warm the afternoon gets, and whether that adds up to a run.

Indiana highlighted on a map of the maple belt, with its forecast town (LaGrange) marked — Indiana in the maple beltDots: LaGrange

Season opens: Feb 10; typical
Closes: Mar 12; typical

92 days to the usual opening. When to tap in Indiana

LaGrange · LaGrange County has the most taps in Indiana (19,869 of 107,234); with Elkhart, Marshall and Kosciusko counties, northern Indiana holds 57% of the state's taps (2022 Census of Agriculture).

Forecast for LaGrange

Updated Nov 10, 8:32 AM EST

Forecast unavailable

freeze thaw 32°F

Data: National Weather Service. Verdicts use freeze-thaw thresholds from maple field research; your woods may run a little differently.

Your exact spot

Somewhere else in Indiana?

Share your location for the outlook where your trees actually are. We don't store it.

Your sugarbush, your forecast

Hourly temperatures for your exact spot, turned into a day-by-day sap-run outlook. US and Canada.

Nearby

Other states

Data & method · 4

1.National Weather Service API · NOAA National Weather Service
2.Sap flow in sugar maple: timing and weather drivers (Frontiers in Agronomy, 2025) · de Lima Santos et al.
3.Maple Sugaring Tips for Beginners and Backyard Maple Sugar Producers · UNH Extension
4.North American Maple Syrup Producers Manual, 2nd ed. (Bulletin 856) · The Ohio State University Extension

LuckySap · free on iPhone & Android

Never miss the first run

LuckySap can ping you the evening before a strong sap day, then keeps your collections, sugar readings and boils in one season log. Free on iPhone and Android.