# Chicago, IL weather forecast

Today in Chicago, Wed 28 Oct: high 74.0 °F, low 55.1 °F, the median of 8 free forecasts (6 for the low). Station: Midway (KMDW). As of 2026-10-28T06:07Z.

| Day | High °F | Low °F | Source spread (highs) | Source spread (lows) | Forecasts | Rain chance | Rain in |
|---|---|---|---|---|---|---|---|
| Wed 28 Oct (rest of day) | 74.0 | 55.1 | 71.1–78.0 | 50.1–57.5 | 8 | 2% | 0.00 |
| Thu 29 Oct | 68.1 | 55.6 | 66.2–73.0 | 50.3–61.0 | 9 | 54% | 0.03 |
| Fri 30 Oct | 63.0 | 48.8 | 60.1–64.0 | 45.5–53.0 | 9 | 44% | 0.00 |
| Sat 31 Oct | 61.0 | 52.0 | 54.8–68.0 | 48.0–56.8 | 9 | 57% | 0.14 |
| Sun 1 Nov | 64.9 | 54.4 | 62.8–67.0 | 50.2–58.0 | 8 | 49% | 0.00 |
| Mon 2 Nov | 64.7 | 53.5 | 61.0–70.3 | 47.6–58.8 | 8 | 65% | 0.03 |
| Tue 3 Nov | 64.8 | 56.5 | 57.0–69.2 | 51.0–60.7 | 7 | 74% | 0.17 |

Rain today: 0.00 in so far at KMDW (hourly station reports to 12:53 am); rest of day 2% (n 3: ENS, GEFS, GEPS members' share, raw), 0.00 in. October to date: 0.00 in (NWS climate reports (CLI) through Oct 26); ≈ 0.30 in expected rest of month (<0.01–0.71).

Alerts: none (NWS).

Weather markets here: Kalshi and Polymarket high, low and rain. Station, rule and the number so far for each: https://groundhog.markets/p/chicago#markets (API: https://groundhog.markets/api/v1/markets?place=chicago).

Credits: NOAA/NWS (public domain); MET Norway, DWD, GeoNames (CC BY 4.0); ECCC (Open Licence); based on ECMWF data (CC BY 4.0; ECMWF accepts no liability); modified by groundhog. Full: groundhog.markets/credits
Page: https://groundhog.markets/p/chicago