CheckWeather US›Severn
Severn weather
Loading live data…The weather map: all three models at once
NWS, American, European side by side around Severn and nearby towns.Live rain radar →Loading the three model maps…
Next 14 hours
consensus of the three models7-day forecast
where the models agree, and where they splitSevern, MD is at its warmest in Jul (average highs near 88°F) and coldest in Jan (lows around 32°F), with roughly 51 in of precipitation across the year. Below, compare what NWS, American, European forecast for Severn right now, and see exactly where they disagree.
Severn climate by month
average daytime high and overnight low across a typical yearJan
47°
32°
Feb
51°
33°
Mar
56°
38°
Apr
68°
48°
May
73°
54°
Jun
83°
63°
Jul
88°
70°
Aug
85°
67°
Sep
78°
62°
Oct
69°
50°
Nov
58°
41°
Dec
48°
34°
Which forecast is most accurate in the US?
CheckWeather Score — graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 40 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.
Common questions
What's the weather in Severn today?
On this page we show what NWS, American, European each forecast for Severn today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Severn today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Severn and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Severn?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Severn forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in Severn?
Jul is typically the warmest month in Severn, with average highs around 88°F.
How cold does Severn get?
The coldest month in Severn is Jan, when overnight lows average about 32°F.
How much rain does Severn get?
Severn sees roughly 51 in of precipitation a year, with Jul usually the wettest month.
The forecasts Americans check
The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.