Kalshi goes by the thermometer at Boston Logan International Airport (KBOS). Today's high counts from 1:00 AM Oct 31 to 1:00 AM Nov 1 EDT.
Newest official high: Fri, Oct 30, posted Oct 31, 4:21 AM EDT.
Boston so far today: the high is 49°F (hourly reading, 1:54 AM), in the 51° or below bracket. The favorite is 54° to 55° at 58¢ (Kalshi, 30 minutes late), 5° above the high so far. Trading closes at 1:00 AM EDT. 6 reports from KBOS from 1:00 AM to 7:13 AM EDT, between 46°F and 49°F; the latest 46°F at 6:54 AM.
| Bracket | Price | Note |
|---|---|---|
| 60° or above | — | |
| 58° to 59° | 2¢ | |
| 56° to 57° | 7¢ | |
| 54° to 55° | 58¢ | favorite |
| 52° to 53° | 36¢ | |
| 51° or below | 2¢ | high so far |
| Time | Reading |
|---|---|
| 6:54 AM | 46°F |
| 5:54 AM | 47°F |
| 4:54 AM | 47°F |
| 3:54 AM | 48°F |
| 2:54 AM | 48°F |
| 1:54 AM | 49°F |
Which bracket will Boston settle on today? For fun: no money, no orders, nothing sent to Kalshi. The market's own favorite usually wins, and your record sits beside it. See this week's leaderboard
Create a free account to play: calls on your 3 cities, your record beside the market's favorite and the model's.
Prices (30 min late) 31 min ago· Readings 19 min ago
High so far today
49°F
hourly reading at 1:54 AM, 6 reports so far
Latest reading
46°F
taken 6:54 AM, counts toward today
Trading closes in
17 h 47 min
usually settles around 6:12 AM (median of 60 days)
| Bracket | Price | Bid | Last | Waiting to trade (bid × ask) | Traded |
|---|---|---|---|---|---|
| 60° or above | 1¢ | — | 0¢ | — × 1,121 | 0 |
| 58° to 59° | 2¢ | 1¢ | 1¢ | 27 × 252 | 342 |
| 56° to 57° | 7¢ | 6¢ | 6¢ | 33 × 17 | 1,561 |
| 54° to 55°favorite | 58¢ | 57¢ | 58¢ | 157 × 428 | 1,525 |
| 52° to 53° | 37¢ | 35¢ | 37¢ | 1,213 × 144 | 1,716 |
| 51° or belowhigh so far 49° | 2¢ | 1¢ | 1¢ | 119 × 49 | 361 |
46°F
Favorite 42° to 43° at 65¢ · 3° to go, down
Low so far set at 6:54 AM. Same station and day as the high; closes in 17 h 47 min.
From KBOS's NWS climate reports (via the Iowa Environmental Mesonet) and Kalshi's settlements and stored prices. Facts about past days, not forecasts.
Live prices in all 24 cities (these are 30 minutes late), 12 weather models' forecasts for this station (KBOS) on the chart and in a table, whether today is running hotter or cooler than they expected, and how each model has done here.
Model record: in our test the market's prices were more accurate than the model (log loss 1.26 vs 1.48 a day ahead, 0.92 vs 1.25 on the day; lower is better).
Every report from the station today (a ), in exact whole °F. “6 h max” is the station's own highest reading over the past 6 hours, which can catch a peak between hourly reports.
| Time | Reading | 6 h max | 24 h max | Report |
|---|---|---|---|---|
| 6:54 AM | 46° | METAR KBOS 311054Z 31012G18KT 10SM FEW060 08/M03 A3032 RMK AO2 SLP267 T00781028 $ | ||
| 5:54 AM | 47° | METAR KBOS 310954Z 31014G20KT 10SM CLR 08/M02 A3030 RMK AO2 SLP261 T00831022 $ | ||
| 4:54 AM | 47° | METAR KBOS 310854Z 33013G20KT 10SM CLR 08/M02 A3027 RMK AO2 SLP250 T00831017 53022 $ | ||
| 3:54 AM | 48° | METAR KBOS 310754Z 33011KT 10SM CLR 09/01 A3024 RMK AO2 SLP240 T00890011 $ | ||
| 2:54 AM | 48° | METAR KBOS 310654Z 29010KT 10SM CLR 09/01 A3022 RMK AO2 SLP234 T00890011 $ | ||
| 1:54 AM | 49° | 55° | METAR KBOS 310554Z 29009KT 10SM CLR 09/01 A3021 RMK AO2 SLP228 T00940011 10128 20094 53017 $ |
The official high isn't in yet. The final report goes out shortly after midnight standard time.
Not settled yet: Kalshi usually settles around 7 AM local the next morning.
Download every official high at KBOS (CSV): the NWS climate report's daily high since Jan 1, 2025, with its time, the normal and the record. Free, no account.
Follow Boston free. A free account keeps 3 cities on a watchlist.
Almanac shows information and tools. It never says what to buy or sell and never places an order. A free account follows 3 cities.