Pack or skip
Packable down jacket for Chicago in January
Verdict
Pack it
Lows around 17°F — the packable puffer covers 90% of layering needs.
Why
Chicago in January averages highs of 32°F, lows of 17°F, 11 rainy days.
That climate means a packable down jacket earns its space in the bag. Lows around 17°F — the packable puffer covers 90% of layering needs.