Weather for 45040 — Mason, OH
Conditions and forecast for the exact centre of ZIP code 45040 (39.336, -84.315), not a nearby airport.
60°
Light rain
- Feels like:
- 60°
- Humidity:
- 93%
- Wind:
- 14 mph
- Dew point:
- 58°
Source updated: 1:47:41 PM · WeatherSignal checked: 1:47:41 PM
Next 12 hours in 45040
2 PM
59°
0%
3 PM
58°
0%
4 PM
58°
0%
5 PM
57°
0%
6 PM
57°
0%
7 PM
56°
0%
8 PM
55°
0%
9 PM
54°
0%
10 PM
53°
0%
11 PM
53°
0%
12 AM
53°
0%
1 AM
52°
0%
7 day forecast for 45040
Today
60° / 53°
0% rain · 15 mph wind
Saturday, Oct 17
53° / 41°
0% rain · 16 mph wind
Sunday, Oct 18
62° / 37°
0% rain · 6 mph wind
Monday, Oct 19
64° / 40°
0% rain · 6 mph wind
Tuesday, Oct 20
66° / 42°
0% rain · 6 mph wind
Wednesday, Oct 21
65° / 45°
0% rain · 7 mph wind
Thursday, Oct 22
67° / 44°
0% rain · 6 mph wind
About ZIP code 45040
45040 covers Mason in Ohio. Forecasts on this page are generated for the coordinates at the centre of the ZIP code, so small differences from a nearby city forecast are expected and usually correct.
Closest cities with full forecast pages: Cincinnati (19 mi), Dayton (30 mi), Columbus (82 mi), Lexington-Fayette (90 mi).
Nearby ZIP codes
Severe weather warnings are issued by the National Weather Service for counties and polygons that may not line up with ZIP code boundaries. Always follow official warnings for your exact address.
Planning your week in Mason 45040, Ohio
- The warmest afternoon ahead is Thursday, reaching about 67°F.
- The coldest night ahead dips to about 37°F.
- This is a dry stretch — most days show rain chances under 20%, good for outdoor plans.
- The breeziest day looks like tomorrow, with sustained wind near 16 mph.
Common questions about Mason 45040, Ohio weather
- How accurate is the Mason 45040, Ohio forecast?
- The next 48 hours are usually reliable on temperature and sky cover, with timing that can shift by an hour or two. Days three and four are dependable for the overall pattern. Beyond that, treat the numbers as a planning direction rather than a promise — we label confidence on every day so you can judge for yourself.
- What is the best day this week in Mason 45040, Ohio?
- No day in the current outlook has a rain chance above 40%, so conditions look favorable for outdoor plans across the week.
- Where does this forecast come from?
- Forecast values come from national weather model data, and official warnings come from the National Weather Service. We show the source and the last-updated time on every page, and we never invent a number the source did not publish — missing measurements are hidden, not guessed.
- How often is this page updated?
- The forecast refreshes whenever the source model publishes new data, typically several times a day. The freshness note near the top of the page shows exactly when the numbers you are looking at were issued.
More weather for Mason 45040, Ohio
- Current weather in Mason 45040, Ohio
- Mason 45040, Ohio hourly forecast
- Mason 45040, Ohio weather tomorrow
- Mason 45040, Ohio weekend weather
- Mason 45040, Ohio weather radar
- Mason 45040, Ohio severe weather alerts
- Best time to go outside in Mason 45040, Ohio
- What happened overnight in Mason 45040, Ohio
- How accurate is the Mason 45040, Ohio forecast?
- Mason 45040, Ohio monthly weather averages
Weather in nearby cities
- Cincinnati, OH weather · about 19 miles away
- Dayton, OH weather · about 30 miles away
- Columbus, OH weather · about 82 miles away
- Lexington-Fayette, KY weather · about 90 miles away
- Indianapolis, IN weather · about 103 miles away
- Louisville, KY weather · about 108 miles away